Organization
Institute of Integrated Research Laboratory for Future Interdisciplinary Research of Science and Technology Associate Professor
Title
Associate Professor
External link
SEKIGUCHI YU
Degree
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博士（工学） ( 2013.3 東京工業大学 )
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修士（工学） ( 2011.3 東京工業大学 )
Research Interests
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Mechanics, Material dynamics, Joining technology
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surface and interface
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material mechanics
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fracture mechanics
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adhesive bonding
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Joint technology
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bio-mimetic engineering
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adhesion
Research Areas
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials
Education
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Tokyo Institute of Technology Graduate School of Science and Engineering Department of International Development Engineering
2011.4 - 2013.3
Country： Japan
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Tokyo Institute of Technology Graduate School of Science and Engineering Department of International Development Engineering
2009.4 - 2011.3
Country： Japan
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Tokyo Institute of Technology School of Engineering Department of International Development Engineering
2006.4 - 2009.3
Country： Japan
Research History
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Institute of Science Tokyo Institute of Integrated Research Associate Professor
2024.10
Country：Japan
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Tokyo Institute of Technology Institute of Innovative Research Associate Professor
2024.4 - 2024.9
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Tokyo Institute of Technology Institute of Innovative Research Assistant Professor
2016.4 - 2024.3
Country：Japan
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Tokyo Institute of Technology Precision and Intelligence Laboratory Assistant Professor
2013.5 - 2016.3
Country：Japan
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Japan Society for the Promotion of Science
2012.4 - 2013.4
Country：Japan
Professional Memberships
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Japan Welding Society
2024.3
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Society of Automotive Engineers of Japan, Inc.
2018.11
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The Society of Polymer Science, Japan
2017.1
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The Society of Materials Science, Japan
2014.4
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The Japan Society of Mechanical Engineers
2013.6
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The Adhesion Society of Japan
2012.4
Committee Memberships
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1st Japan-Germany Frontiers of Engineering (JAGFOE) Symposium Session Co-Chairs
2025.11
Committee type：Academic society
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一般社団法人日本接着学会 全国接着若手の会 代表幹事
2025.6
Committee type：Academic society
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一般社団法人日本接着学会 構造接着・精密接着研究会 副会長
2025.5
Committee type：Academic society
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一般社団法人 溶接学会 界面接合研究委員会 幹事
2024.3
Committee type：Academic society
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一般社団法人日本接着学会 構造接着・精密接着研究会 幹事
2023.5
Committee type：Academic society
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一般社団法人日本接着学会 コンテンツ委員会
2022.6
Committee type：Academic society
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一般社団法人日本接着学会 HP改定委員会
2021.6 - 2022.5
Committee type：Academic society
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Materials [MDPI] Reviewer Board Member
2020.3
Committee type：Academic society
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一般社団法人日本接着学会 評議員
2016.7
Committee type：Academic society
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一般社団法人日本接着学会 関東支部幹事
2014.12
Committee type：Academic society
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一般社団法人 日本接着学会 関東支部 若手交流会 代表幹事
2014.4
Committee type：Academic society
Papers
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Experimental investigation of adhesive joint strength and stress-based criteria under tensile/compression–shear stress state using a developed fixture Reviewed International journal
Taiga Yamazaki, Keiyu Ikeda, Yu Sekiguchi, Chiaki Sato
The Journal of Adhesion 102 ( 3 ) 179 - 200 2026.2
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Fracture Energy Reduction Caused by Water at the Crack Front of an Aluminum/Epoxy Resin Interface Reviewed International journal
Aoto Seki, Tetsuto Terabayashi, Kazumasa Shimamoto, Chiaki Sato, Yu Sekiguchi
Adhesives 2 ( 1 ) 4 2026.2
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Transfer decoration technique on glass curved in three-axis direction: Selective placement of decoration layers by reverse prediction Reviewed International journal
Yoshihiro Maki, Junichi Kakuta, Kenji Arata, Takehiro Mitsuda, Yu Sekiguchi, Chiaki Sato
The International Journal of Advanced Manufacturing Technology 142 5863 - 5877 2026.1
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High-throughput Micro-indentation Method for Temperature-Dependent Static and Dynamic Characterization of Structural Adhesives Reviewed International journal
Chao KANG, Yoichi OKAMOTO, Ming JI, Keiyu IKEDA, Yu SEKIGUCHI, Masanobu NAITO, Chiaki SATO
Polymer Testing 155 109093 2026.1
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Three-point bending strength of double-hat beams of high strength steel bonded adhesively Reviewed International journal
Keiyu Ikeda, Koshi Orino, Taiga Yamazaki, Kazumasa Shimamoto, Yu Sekiguchi, Chiaki Sato
The Journal of Adhesion 101 ( 12 ) 1422 - 1449 2025.9
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Fracture Energy Determination of Wedge-opening Double Cantilever Beam Tests Reviewed International journal
Keiyu Ikeda, Yu Sekiguchi, Kazumasa Shimamoto, Chiaki Sato
The Journal of Adhesion 101 ( 9 ) 1143 - 1162 2025.7
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Fatigue crack growth analysis of a ductile structural acrylic adhesive under constant-amplitude load control at various loading conditions Reviewed International journal
Yu Sekiguchi, Kazumasa Shimamoto, Keiji Houjou, Chiaki Sato
International Journal of Adhesion and Adhesives 140 104049 2025.6
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A modified spectral collocation method for vibration of sandwich beams based on a higher-order layer-wise beam theory Reviewed International journal
Ming Ji, Yu Sekiguchi, Masanobu Naito, Chiaki Sato
Thin-Walled Structures 209 112949 2025.4
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Short-term measurement of moisture diffusion coefficient Reviewed
Shinya Iizuka, Yu Sekiguchi, Chiaki Sato
Journal of the Adhesion Society of Japan 61 ( 4 ) 75 - 80 2025.4
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Effect of rapid interfacial moisture penetration on moisture distribution within adhesive layers Reviewed International journal
Jin-Woo Han, Yu Sekiguchi, Kazumasa Shimamoto, Haruhisa Akiyama, Chiaki Sato
Materials Letters 381 137768 2025.2
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Direct Measurement of the Diffusion Coefficient of Adhesives from Moisture Distribution in Adhesive Layers Using Near-Infrared Spectroscopy Reviewed International journal
Jin-Woo Han, Yu Sekiguchi, Kazumasa Shimamoto, Haruhisa Akiyama, Chiaki Sato
ACS Applied Materials & Interfaces 16 ( 40 ) 54610 - 54626 2024.10
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Experimental investigation of moisture penetration in adhesive layers under varying bonding conditions using near-infrared spectroscopy Reviewed International journal
Jin-Woo Han, Yu Sekiguchi, Kazumasa Shimamoto, Haruhisa Akiyama, Chiaki Sato
International Journal of Adhesion and Adhesives 134 103792 2024.9
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Measurement of the water vapor transmission rate at temperatures above 100 °C Reviewed International journal
Shinya Iizuka, Yu Sekiguchi, Chiaki Sato
The Journal of Adhesion 101 ( 5 ) 776 - 793 2024.8
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Analytical Calculation of Relationship Temperature and Fatigue and Creep Strength Based on Thermal Activation Reviewed International journal
Keiji Houjou, Kazumasa Shimamoto, Haruhisa Akiyama, Yu Sekiguchi, Chiaki Sato
Materials 17 ( 13 ) 3055 2024.6
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Spectral collocation method for free vibration of sandwich plates containing a viscoelastic core Reviewed International journal
Ming Ji, Chao Kang, Yu Sekiguchi, Masanobu Naito, Chiaki Sato
Composite Structures 337 118024 2024.6
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Experimental approach for measuring the peeling strength of a sheet bonded on a curved adherend with pressure sensitive adhesive and predicting the peeling resistance by finite element analysis Reviewed International journal
Akihiro Maesaka, Yushin Kakei, Tsutomu Osaka, Yoshihiro Kudo, Yu Sekiguchi, Chiaki Sato
The Journal of Adhesion 100 ( 16 ) 1554 - 1569 2024.3
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Effects of low temperatures and high strain rates on the tensile properties of polyurethane polymers for adhesives Reviewed International journal
Runa Okumura, Kazumasa Shimamoto, Yu Sekiguchi, Kazushi Kimura, Hirokazu Kageyama, Yutaro Yamamoto, Yuichi Matsuki, Chiaki Sato
The Journal of Adhesion 99 ( 15 ) 2238 - 2259 2023.11
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A butt shear joint (BSJ) specimen for high throughput testing of adhesive bonds Reviewed International journal
Chao Kang, J. J. M. Machado, Yu Sekiguchi, Ming Ji, Chiaki Sato, Masanobu Naito
The Journal of Adhesion 99 ( 14 ) 2080 - 2096 2023.10
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A high-throughput technique to evaluate the probability distribution of strength of adhesively bonded joints after moisture absorption Reviewed International journal
Chao Kang, Ming Ji, Yu Sekiguchi, Masanobu Naito, Chiaki Sato
The Journal of Adhesion 101 ( 1 ) 18 - 40 2023.10
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Inverse design of composite xylophone beams using finite element-based machine learning Reviewed International journal
Tatsuro Kimura, Ming Ji, Ryu Onodera, Yu Sekiguchi, Chiaki Sato
Discover Mechanical Engineering 2 ( 1 ) 2023.7
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Analyzing Deformation of a Cationic Photopolymerized Epoxy Adhesive during the Curing Process in UV Irradiation and Dark Reaction based on Finite Element Method and Measurement Reviewed International journal
A. Takahashi, Y. Sekiguchi, N. Taki, M. Okamura, C. Sato
The Journal of Adhesion 100 ( 7 ) 599 - 615 2023.7
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Experimental measurement of moisture distribution in the adhesive layer using near‐infrared spectroscopy Reviewed International journal
Jin-Woo Han, Yu Sekiguchi, Kazumasa Shimamoto, Haruhisa Akiyama, Chiaki Sato
Journal of Applied Polymer Science 140 ( 25 ) e53982 2023.7
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Forward and inverse analysis of transient responses for a cantilevered rectangular plate under normal and oblique impact loadings Reviewed International journal
Ming JI, Yu Sekiguchi, Kazuaki Inaba, Masanobu Naito, Chiaki Sato
International Journal of Impact Engineering 174 104514 - 104514 2023.4
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Two‐parameter analysis of fatigue crack growth behavior in structural acrylic adhesive joints Reviewed International journal
Yu Sekiguchi, Keiji Houjou, Kazumasa Shimamoto, Chiaki Sato
Fatigue & Fracture of Engineering Materials & Structures 46 909 - 923 2023.3
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Creep Crack Growth Behavior during Hot Water Immersion of an Epoxy Adhesive Using a Spring-Loaded Double Cantilever Beam Test Method Reviewed International journal
Kota Nakamura, Yu Sekiguchi, Kazumasa Shimamoto, Keiji Houjou, Haruhisa Akiyama, Chiaki Sato
Materials 16 607 2023.1
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Ryu ONODERA, Tatsuro KIMURA, Yu SEKIGUCHI, Chiaki SATO
Journal of The Adhesion Society of Japan 59 ( 4 ) 104 - 110 2023
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Effect of temperature and loading rate on the mode I fracture energy of structural acrylic adhesives Reviewed International journal
Asuka Hayashi, Yu Sekiguchi, Chiaki Sato
Journal of Advanced Joining Processes 5 100079 2022.6
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Light-Induced Topological Patterning toward 3D Shape-Reconfigurable Origami Reviewed International journal
Wei Hsun Hu, Ming Ji, Ta Te Chen, Siqian Wang, Mizuki Tenjimbayashi, Yu Sekiguchi, Ikumu Watanabe, Chiaki Sato, Masanobu Naito
Small 18 ( 14 ) 2107078 2022.4
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Energy release rate and crack propagation rate behaviour of moisture-deteriorated epoxy adhesives through the double cantilever beam method Reviewed International journal
K. Houjou, Y. Sekiguchi, K. Shimamoto, H. Akiyama, C. Sato
The Journal of Adhesion 99 ( 6 ) 1016 - 1030 2022
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Effect of bond-line thickness on fatigue crack growth of structural acrylic adhesive joints Reviewed International journal
Yu Sekiguchi, Chiaki Sato
Materials 14 ( 7 ) 1723 2021.4
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Experimental investigation of the effects of adhesive thickness on the fracture behavior of structural acrylic adhesive joints under various loading rates Reviewed International journal
Yu Sekiguchi, Chiaki Sato
International Journal of Adhesion and Adhesives 105 102782 2021.3
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AFM observation of sea-island structure formed by second generation acrylic adhesive Reviewed International journal
Asuka Hayashi, Yu Sekiguchi, Chiaki Sato
The Journal of Adhesion 97 ( 2 ) 155 - 171 2021
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Volume change and viscoelastic properties of UV-curable adhesives for precise positioning during curing process and their formulation Reviewed International journal
A. Takahashi, Y. Sekiguchi, C. Sato
The Journal of Adhesion 98 ( 13 ) 2029 - 2044 2021
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Analytical determination of adhesive layer deformation for adhesively bonded double cantilever beam test considering elastic–plastic deformation Reviewed International journal
Sekiguchi, Y., Hayashi, A., Sato, C.
The Journal of Adhesion 96 ( 7 ) 647 - 664 2020
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Buckling Analysis of a Beam on an Elastic Foundation ConsideringInitial Imperfection Reviewed
SEKIGUCHI Yu, SAKAKIBARA Ryo, SATO Chiaki
Journal of The Adhesion Society of Japan 55 ( 7 ) 254 - 265 2019.7
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Study on the Reversible Adhesion Inspired from Gecko Foot Hairs Reviewed
SEKIGUCHI Yu
Journal of The Adhesion Society of Japan 55 ( 2 ) 50 - 56 2019.2
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Experimental investigation of an adhesive fracture energy measurement by preventing plastic deformation of substrates in a double cantilever beam test Reviewed International journal
Komatsu, K., Sekiguchi, Y., Ihara, R., Tatsumi, A., Sato, C.
The Journal of Adhesion 95 ( 10 ) 2019
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Experimental investigation on strength of stepwise tailored single lap adhesive joint using second-generation acrylic adhesive via shear and low-cycle shear tests Reviewed International journal
Sekiguchi, Y., Nakanouchi, M., Haraga, K., Takasaki, I., Sato, C.
International Journal of Adhesion and Adhesives 95 102438 2019
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Development of application method for fabricating functionally graded adhesive joints by two-component acrylic adhesives with different elastic moduli Reviewed International journal
Nakanouchi, M., Sato, C., Sekiguchi, Y., Haraga, K., Uno, H.
The Journal of Adhesion 95 ( 5-7 ) 529 - 542 2019
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弾塑性有限要素解析における高じん性接着剤材料モデルのパラメータ同定 Reviewed
阿部徳秀, 関口悠, 佐藤千明
日本接着学会誌 54 ( 10 ) 358 - 366 2018.10
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Yu Sekiguchi, Yuki Yamagata, Chiaki Sato
Journal of the Adhesion society of Japan 53 ( 10 ) 330 - 337 2017.10
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Shota Kawasaki, Yu Sekiguchi, Gosuke Nakajima, Kosuke Haraga, Chiaki Sato
Journal of the Adhesion Society of Japan 53 ( 6 ) 192 - 201 2017.6
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Experimental investigation of the effect of tip shape in gecko-inspired adhesive devices under asymmetric detachment Reviewed International journal
Sekiguchi, Y., Sato, C.
Applied Adhesion Science 5 ( 1 ) 8 2017
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Influence of adhesion area, applied voltage, and adherend materials on residual strength of joints bonded with electrically dismantlable adhesive Reviewed International journal
Shiote, H., Sekiguchi, Y., Ohe, M., Sato, C.
The Journal of Adhesion 93 ( 10 ) 831 - 854 2017
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Experimental investigation of mode i fracture energy of adhesively bonded joints under impact loading conditions Reviewed International journal
Yamagata, Y., Lu, X., Sekiguchi, Y., Sato, C.
Applied Adhesion Science 5 ( 1 ) 2017
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Expansion characteristics of thermally expandable microcapsules for dismantlable adhesive under hydrostatic pressure or in resin Reviewed International journal
Uratani, Y., Sekiguchi, Y., Sato, C.
The Journal of Adhesion 93 ( 10 ) 771 - 790 2017
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Mixed mode fracture toughness of adhesively bonded joints with residual stress Reviewed International journal
Kazumasa Shimamoto, Yu Sekiguchi, Chiaki Sato
International Journal of Solids and Structures 102-103 120 - 126 2016.12
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Effect of detachment speed on adhesion strength of gecko inspired adhesive devices Reviewed International journal
Yu Sekiguchi, Chiaki Sato
Key Engineering Materials 715 63 - 67 2016
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Strength of cylindrical butt joints bonded with epoxy adhesives under combined static or high-rate loading Reviewed International journal
Sho Murakami, Yu Sekiguchi, Chiaki Sato, E Yokoi, T Furusawa
International Journal of Adhesion and Adhesives 67 86 - 93 2015.12
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Effects of surface treatment on the critical energy release rates of welded joints between glass fiber reinforced polypropylene and a metal Reviewed International journal
Kazumasa Shimamoto, Yu Sekiguchi, Chiaki Sato
International Journal of Adhesion and Adhesives 67 31 - 37 2015.12
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The critical energy release rate of welded joints between fiber-reinforced thermoplastics and metals when thermal residual stress is considered Reviewed International journal
Kazumasa Shimamoto, Yu Sekiguchi, Chiaki Sato
The Journal of Adhesion 92 ( 4 ) 306 - 318 2015.12
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Adhesion mechanism of a gecko-inspired oblique structure with an adhesive tip for asymmetric detachment Reviewed International journal
Yu Sekiguchi, Kunio Takahashi, Chiaki Sato
Journal of physics D : applied physics 48 ( 47 ) 475301 2015.10
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Thermal Stress Reduction and Strength Evaluation of Welded Joints for Dissimilar Materials Reviewed
島本一正, 関口悠, 佐藤千明
日本接着学会誌 51 ( 9 ) 409 - 415 2015.9
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Novel method to measure the creep strength of adhesively bonded butt joints subjected to constant loading using a hydro-pneumatic testing machine Reviewed International journal
Binti Ramli Mizah, Yu Sekiguchi, Chiaki Sato
The Journal of Adhesion 92 ( 1 ) 65 - 79 2015.8
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Experimental study of the Mode I adhesive fracture energy in DCB specimens bonded with a polyurethane adhesive Reviewed International journal
Yu Sekiguchi, masato katano, chiaki sato
The Journal of Adhesion 93 ( 3 ) 235 - 255 2015.8
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Flexibility and Poisson effect on detachment of gecko-inspired adhesives Reviewed International journal
Yu Sekiguchi, shigeki saito, kunio takahashi, chiaki sato
International Journal of Adhesion and Adhesives 62 55 - 62 2015.7
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Mode I critical fracture energy of adhesively bonded joints between glass fiber reinforced thermoplastics Reviewed International journal
Siripong Mahaphasukwat, Kazumasa Shimamoto, Shota Hayashida, Yu Sekiguchi, CHIAKI SATO
Applied Adhesion Science 3 ( 1 ) 4 2015.3
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High-frequency welding of glass–fibre-reinforced polypropylene with a thermoplastic adhesive layer: Effects of ceramic type and long-term exposure on lap shear strength Reviewed International journal
Masaru Sano, Hiroyuki Oguma, Masahiro Sekine, Yu Sekiguchi, CHIAKI SATO
International Journal of Adhesion and Adhesives 59 7 - 13 2015.2
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Effect of sape of elastic beam hair on its adhesion with wavy surfaces Reviewed International journal
PASOMPHONE HEMTHAVY, Takehiko Yazaki, Boqing Wang, Yu Sekiguchi, KUNIO TAKAHASHI
IOP Conference Series: Materials Science and Engineering 61 012043 2014.8
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Experiments of the adhesion behavior between an elastic beam and a substrate Reviewed International journal
Yu Sekiguchi, PASOMPHONE HEMTHAVY, Shigeki SAITO, KUNIO TAKAHASHI
International Journal of Adhesion and Adhesives 49 1 - 6 2014.3
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Adhesion between side surface of an elastic beam and flat surface of a rigid body Reviewed International journal
Yu Sekiguchi, PASOMPHONE HEMTHAVY, Shigeki SAITO, KUNIO TAKAHASHI
Journal of Adhesion Science and Technology 26 ( 23 ) 2615 - 2626 2012.8
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Separation mechanisms of reversible adhesive joining using an elastic body with variable elastic modulus Reviewed International journal
Y Sekiguchi, P Hemthavy, S Saito, K Takahashi
Journal of Physics: Conference Series 379 012041 2012.8
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Optimum condition of boost switching regulator for charging tiny electric energy to capacitor Reviewed International journal
Y Honda, M Tanaka, Y Sekiguchi, P Hemthavy, Kunio Takahashi
Journal of Physics: Conference Series 379 012023 2012.8
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Mechanisms for Grip-and-Release Process of Adhesion Contact Using Material with Variable Elastic Modulus Reviewed International journal
Y. Sekiguchi, L. Lei, P. Hemthavy, K. Takahashi
Journal of Adhesion Science and Technology 24 ( 11-12 ) 1819 - 1830 2010.9
Books
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粘着製品・技術の最新動向と将来展望 〜半導体・電子材料・車載・医療用途、環境 カーボンニュートラル・SDGs・MI〜
山崎 義弘, 山口 哲生, 島津 彰, 関口 悠, 島本 一正, 秋山 陽久, 堀内 伸, 田嶌 一樹, 柏原 徹也, 川嶋 徹, 山田 紘子, 田中 隆佑, 橋本 雅彦, 春田 一成, 岡部 年孝, 日下 康成, 田久 真也, 廣井 良一, 野村 伸吾, 山本 敏幸（ Role： Contributor第1章 粘着メカニズムと最新の信頼性（劣化・寿命）の分析・解析事例 第5節 ヤモリの接着・剥離メカニズムの解析）
株式会社AndTech 2025.5 （ ISBN:9784909118806 ）
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Adhesive Bonding Second Edition―Science, Technology and Applications
（ Role： Joint translator , Original_author： Paul A. Fay, John Comyn, John F. Watts, Gary W. Critchlow, Gregory L. Anderson, David J. Macon, Alireza Akhavan-Safar, Eduardo A., S. Marques, Ricardo J., C. Carbas, Lucas F. M., da Silva, Robert L. Cranea, John Hart-Smithb, John Newman, Chiaki Sato, Stephan Marzi, David A. Dillard, Ian A. Ashcrof, Aamir Mubashar, Martin Hildebrand, Robert D. Adams, Ewen J. C. Kellar, Lucas F. M. da Silva, Alan A. Baker, Hamed Y. Nezhad, Peter Davies, Till Vallée, Matthias Albiez, Magdalena Sterley, Erik Serrano, Björn Källander, Klaus Dilger, Markku Hentinen, José Miguel Martin-Martinez, V. Nassie, B. Hassoune-Rhabbour, O. Tramis, J-A Peti, John Hart-Smith）
2024.11 （ ISBN:9784860439071 ）
MISC
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ヤモリの足裏構造にインスピレーションされた凝着デバイス
関口悠
砥粒加工学会誌 68 ( 12 ) 658 - 661 2024.12
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高分子の粘弾性挙動に伴う長期的観点での接着強度低下
関口悠
日本接着学会誌 59 ( 12 ) 420 - 429 2023.12
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接着接合を知る：信頼性の高い接着接合部の設計のために
関口悠
強化プラスチックス 68 ( 9 ) 336 - 341 2022.9
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数値解析のための結合力モデル
関口悠
日本接着学会誌 56 ( 11 ) 447 - 455 2020.11
Presentations
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Dynamic strength of joints bonded with acrylate adhesive
Chiaki Sato, Masato Katano, Yu Sekiguchi
Proceedings of the JSME 2014 International Conference on Materials and Processing 2014.6
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服部広基, 村上翔, 関口悠, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2014.7
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佐藤千明, 服部広基, 関口悠
日本材料学会学術講演会講演論文集 2014.5
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DCB試験における接着層の弾塑性変形の影響
関口悠, 佐藤 千明
日本接着学会第57回年次大会講演要旨集 2019.6
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Impact deformation of adhesive layer measured with tensile split-hopkinson bar apparatus
Chiaki Sato, Asuka Hayashi, Yu Sekiguchi
Book of abstracts of the 12th European Adhesion Conference (EURADH2018) 2018.9
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構造用接着剤におけるCAE破断予測手法に関する研究（第1報）
堀内伸, 関口悠, 石橋慶輝, 岡村昌浩, 黒田一平, 若松顕都, 手塚翔太, 玉置健二, 岩本光宏, 玉置秀行, 渡辺晋太郎, 太田垣良, 古沢透流, 近澤亮介, 伊原涼平
自動車技術会2019年度春季大会学術講演会講演予稿集 2019.5
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Thermal deformation of dissimilar materials bonded adhesively
Nei Ga, Chiaki Sato, Yu Sekiguchi
Book of abstracts of the 12th European Adhesion Conference (EURADH2018) 2018.9
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Observation of phase separation structure in adhesive
Asuka Hayashi, Yu Sekiguchi, Chiaki Sato
Book of abstracts of the 12th European Adhesion Conference (EURADH2018) 2018.9
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Winkler foundationモデルを利用したDCB試験におけるひずみ速度の解析的検討
関口悠, 佐藤千明
日本接着学会年次大会講演要旨集(CD-ROM) 2018.6
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温度が第二世代アクリル系接着剤のモードI破壊エネルギーに及ぼす影響
林明日香, 関口悠, 佐藤千明
日本接着学会第56回年次大会 講演要旨集 2018.6
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Verification of thin DCB specimens for measurements of mode I fracture toughness
Masato Katano, Yu Sekiguchi, Chiaki Sato
Abstracts of 5th World Congress on Adhesion and Related Phenomena 2014.9
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奈良泰彦, 関口悠, PASOMPHONE Hemthavy, 高橋邦夫, 齋藤滋規
精密工学会大会学術講演会講演論文集 2014.3
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An experimental evaluation of Mode I fracture energy of adhesive joint by DCB test
Asuka Hayashi, Yu Sekiguchi, Chiaki Sato
6th World Congress on Adhesion and Related Phenomena (WCARP), in conjunction with 41th Annual Meeting of the Adhesion Society 2018.2
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Analytical prediction of bending stiffness of honeycomb sandwich panels bonded adhesively
Kazuyoshi Seto, Yu Sekiguchi, Hiroshi Suto, Hayato Miyazaki, Kosuke Haraga, Chiaki Sato
Proceedings of the Short Abstracts EURADH 2014 10th European Adhesion Conference 2014.4
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Effect of Atmospheric Low Temperature Plasma Treatment on Fracture Strength of Adhesively Bonded Joints of Fiber reinforced polypropylene
渡邉俊介, 守屋翔平, 関口悠, 沖野晃俊, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2018.6
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関口悠, 齋藤滋規, 高橋邦夫
日本接着学会年次大会講演要旨集(CD-ROM) 2013.6
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Evaluation of surface treatments for adhesion of thermoplastic composites for automotive use
Sato C, Sekiguchi Y, Okamoto H, Shimamoto K, Katano M, Naito K, Kuratani Y, Okayama T, Takano A, Hamaguchi Y, Fukumoto T, Furukawa K
16th European Conference on Composite Materials, ECCM 2014 2014
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Mode I energy release rate measurement for low bending stiffness adherend bonded with a high toughened adhesive
Katsuo Komatsu, Yu Sekiguchi, Chiaki Sato
6th World Congress on Adhesion and Related Phenomena (WCARP), in conjunction with 41th Annual Meeting of the Adhesion Society 2018.2
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Peeling of Adhered Elastic Tape
Y. Sekiguchi, P. Hemthavy, Shigeki Saito, Kunio Takahashi
Proceedings of the 4th Multidisciplinary International Student Workshop 2012.8
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矢崎健彦, 関口悠, HEMTHAVY Pasomphone, 高橋邦夫
Symp Microjoining Assem Technol Electron 2013.1
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Optimum Duty Ratio of Boost Switching Regulator for Charging Tiny Electric Energy to Capacitor
Y. Honda, M. Tanaka, Y. Sekiguchi, P. Hemthavy, K. Takahashi
Proceeding of ECO-MATES 2011 2011.11
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関口悠, HEMTHAVY Pasomphone, 齋藤滋規, 高橋邦夫
日本接着学会年次大会講演要旨集(CD-ROM) 2012.6
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関口悠, HEMTHAVY Pasomphone, 齋藤滋規, 高橋邦夫
Symp Microjoining Assem Technol Electron 2011.2
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Possibility of Reversible Adhesive Joining Using an Elastic Body with Variable Elastic Modulus
Y. Sekiguchi, P. Hemthavy, S. Saito, K. Takahashi
Proceeding of ECO-MATES 2011 2011.11
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林明日香, 山形勇樹, LU Xi, 関口悠, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2017.10
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Deformation of constitutive equation of an adhesive for car body structure
Norihide Abe, Yu Sekiguchi, Chiaki Sato
6th World Congress on Adhesion and Related Phenomena (WCARP), in conjunction with 41th Annual Meeting of the Adhesion Society 2018.2
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阿部徳秀, 山形勇樹, 関口悠, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2017.10
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応力発光塗料を用いた1/10車体モデルにおける応力分布の可視化
小松勝男, 関口悠, 寺崎正, 藤尾侑輝, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2017.10
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Possibility of manipulation with gecko-inspired reversible adhesives
Yu Sekiguchi, Chiaki Sato
19th International Conference on Electronics Materials and Packaging (EMAP2017) 2017.9
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難接着材料への表面改質の処理量による化学的変化と接着強度に関する研究
関口悠, 佐藤千明
高分子学会予稿集(CD-ROM) 2017.9
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関口悠, 佐藤千明
日本接着学会年次大会講演要旨集(CD-ROM) 2017.6
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Manipulation by Adhesion Force between Elastic body and Rigid Object
Y. Sekiguchi, P. Hemthavy, K. Takahashi
Proceedings of the 5th AOTULE International Postgraduate Student Conference on Engineering 2010.11
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Surface curvature effect on adhesion of gecko inspired asymmetric adhesive devices
Yu Sekiguchi, Chiaki Sato
Book of abstracts 4th International Conference on Structural Adhesive Bonding 2017.7
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Constitutive relation of adhesive layer under combined loading conditions
Norihide Abe, Yuki Yamagata, Yu Sekiguchi, Chiaki Sato
Proceedings of the JSME 2017 International Conference on Materials and Processing 2017.6
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WANG Miaomiao, 関口悠, 高橋邦夫, 齋藤滋規, HEMTHAVY Pasomphone
Symp Microjoining Assem Technol Electron 2010.2
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川崎翔大, 関口悠, 中島剛介, 原賀康介, 佐藤千明
日本接着学会年次大会講演要旨集(CD-ROM) 2017.6
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Manipulation by Adhesion Force between Elastic Beam and Rigid Object
Y. Sekiguchi, P. Hemthavy, K. Takahashi
Proceedings of 2nd Multidisciplinary International Student Workshop in Tokyo Tech 2010 2010.8
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WANG Miaomiao, 関口悠, HEMTHAVY Pasomphone, 高橋邦夫
溶接学会全国大会講演概要 2009.8
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王苗苗, 関口悠, 高橋邦夫, ヘムタピーパソムポーン
溶接学会全国大会講演概要 2009.9
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Mechanisms for adhesive grip-and-release using material with variable elasic modulus
Y.Sekiguchi, L.Lei, P.Hemthavy, K.Takahashi
Proceedings of The 3rd International Conference on Advanced Computational Engineering and Experimenting 2009.6
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岩田英之, 関口悠, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2016.10
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山形勇樹, 関口悠, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2016.10
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表面処理を施した繊維強化熱可塑性樹脂の接着接合部における限界エネルギー解放率
倉永裕貴, 関口悠, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2016.10
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Strain and stress field measurement in functionally graded adhesive joints bonded by honeymoon adhesion using two types of second generation acrylic adhesives
shota kawasaki, Yu Sekiguchi, Nakajima Gosuke, kosuke haraga, chiaki sato
Abstract of the 6th Asian Conference on Adhesion 2016.6
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Effect of cross-section shape of micro-pillar on anisotropic adhesive property
iwata hideyuki, Yu Sekiguchi, chiaki sato
Abstracts of EURADH2016 Adhesion '16 conference 2016.9
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Evaluation of Surface Treatment Methods for Adhesive bonding of Fiber Reinforced Polypropylene
yuki kuranaga, toru ohnishi, Hiroshi Okamoto, Yu Sekiguchi, chiaki sato
Book of abstracts of the 1st International Conference on Materials Design and Applications 2016 2016.6
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Strength of Joints Bonded with Polyurethane Adhesives under Static or High-Rate Conditions of Combined Loading
Yuki Yamagata, Yu Sekiguchi, Chiaki Sato
Book of abstracts of the 1st international Conference on Materials Design and Applications 2016 2016.6
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Effect of tip structure on adhesion strength of gecko inspired adhesive devices
Yu Sekiguchi, chiaki sato
Abstracts of the 6th Asian Conference on Adhesion 2016.6
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Creep rupture of adhesively bonded butt joints subjected to variable loading
ramli mizah, teruaki negishi, Yu Sekiguchi, chiaki sato
Abstract of the 6th Asian Conference on Adhesion 2016.6
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Experimental investigation of mode I fracture toughness of adhesives under impact loading conditions
Lu Xi, Yu Sekiguchi, Chiaki Sato
Proceedings of 39th Annual Meeting, The Adhesion Society 2016.2
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アクリル系構造用接着剤の疲労き裂進展
関口悠, 佐藤 千明
第70回高分子討論会 2021.9
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レオメータを用いた接着接合された板の曲げ剛性評価の検討
関口悠, 佐藤 千明
日本接着学会第６０回年次大会 講演要旨集 2022.6
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構造用接着剤におけるCAE破断予測手法に関する研究（第2報）
堀内伸, 関口悠, 石橋慶輝, 岡村昌浩, 黒田一平, 若松顕都, 手塚翔太, 玉置健二, 岩本光宏, 玉置秀行, 渡辺晋太郎, 太田垣良, 古沢透流, 近澤亮介, 伊原涼平
自動車技術会2019年度秋季大会学術講演会講演予稿集 2019.10
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構造用アクリル系接着剤のDCB試験における表面凹凸の影響
関口悠, 佐藤 千明
日本接着学会第59回年次大会 講演要旨集 2021.6
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EVALUATION OF SURFACE TREATMENT METHODS FOR PA6 FRP BONDING WITH ADHESIVES
toru ohnishi, Hiroshi Okamoto, kazumasa shimamoto, Masato Katano, chiaki sato, Yu Sekiguchi
ICCM20 Proceedings 2015.7
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Thermal buckling of hybrid joints with adhesive and mechanical fasteners
Noriaki Okada, Yu Sekiguchi, Chiaki Sato
14th International Triennial Conference on the Science and Technology of Adhesion and Adhesives 2019.9
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Residual stress determination in SGA layer caused in curing process
Minori Nakanouchi, T Yajima, K Haraga, H Uno, Yu Sekiguchi, Chiaki Sato
14th International Triennial Conference on the Science and Technology of Adhesion and Adhesives 2019.9
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関口悠, 佐藤千明
日本接着学会年次大会講演要旨集(CD-ROM) 2015.6
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アクリル系構造用接着剤の接着厚さがエネルギー解放率へ及ぼす影響の実験的検討
関口悠, 佐藤 千明
日本機械学会材料力学部門M&M若手シンポジウム２０１９講演論文集 2019.8
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ガラス繊維強化ポリアミド6と金属の熱溶着接合部における限界エネルギー解放率
島本一正, 関口悠, 佐藤千明
日本接着学会年次大会講演要旨集(CD-ROM) 2015.6
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Experimental investigation of curing condition effect on adhesive joints bonded with second generation acrylic adhesives
Asuka Hayashi, Yu Sekiguchi, Chiaki Sato
14th International Triennial Conference on the Science and Technology of Adhesion and Adhesive 2019.9
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Strength of welded joints between FRTP and metal with thermal stress
Kazumasa Shimamoto, Yu Sekiguchi, Chiaki Sato
Abstracts of 5th World Congress on Adhesion and Related Phenomena 2014.9
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Constitutive relation of a thin adhesive layer subjected to high-rate combined loads
Sho Murakami, H Hattori, Yu Sekiguchi, Chiaki Sato, T Furusawa, T Shimamiya, E Yokoi, K Sato
Abstracts of 5th World Congress on Adhesion and Related Phenomena 2014.9
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ガラス繊維強化プラスチックの接着Tジョイント強度に及ぼす形状の影響
村上翔, 関口悠, 佐藤千明
日本機械学会M&M材料力学カンファレンス(CD-ROM) 2014.7
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Reliability evaluation of adhesively bonded joints and application to structural parts Invited
関口悠
第73回高分子学会年次大会 2024.6
Awards
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オープンイノベータ功労賞
2024.3 東京工業大学 オープンイノベーション機構
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奨励賞
2018.6 一般社団法人日本接着学会
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手島精一記念研究賞（博士論文賞）
2014.2 国立大学法人東京工業大学
Research Projects
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生体模倣型の液架橋形成と氷による可逆接合を併用した把持力制御による物体操作技術
Grant number：21K03747 2021.4 - 2024.3
日本学術振興会 科学研究費助成事業 基盤研究(C)
関口 悠
Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）
本研究の目的は，液滴サイズ調整機構と冷凍機構を備え持つプローブを開発し，凍結現象によるマニピュレート手法を実現することである．既に液滴プローブを用いたマニピュレーションも存在するが，液架橋力は非常に小さいため，把持対象は小さいものに限られていた．液状の高分子が化学反応により硬化することで接着強度を発現するのと同じように，水は氷になることで接着剤として機能する．したがって，液架橋形成後に水・氷の相変化を起こせば，非常に大きな把持力を得られると考えられる．また，一般的な接着剤と異なり，水・氷の相変化は可逆であるため，脱離も可能である．水を使うことで，対象物を傷つけることがない点も魅力的である．一方で，確実なマニピュレートを実現するための課題も多い．そこで本研究では，最終目標の実現へ向け，液滴のサイズを調整する機構をマニピュレータ先端に持たせることで供給レスな液架橋形成システムを検討する，凍結現象による接着力変化の評価法を確立するなど様々な課題の解決を目指す．初年度は，凍結現象への理解を深めるために，様々な対象物に対して氷との界面の強度を測定する装置を作成し，被着体の種類や表面状態による強度変化の測定を行える環境を整えた．対象物の種類やサイズが異なると，熱伝導率の差で氷の形成時間に違いが生まれたり，液滴のサイズによっても破壊モードが変化したりするなど，氷を用いて物体を把持する際の課題が明らかにされた．
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Study on micro-manipulation using adhesion force control
Grant number：18K13656 2018.4 - 2021.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists Grant-in-Aid for Early-Career Scientists
Sekiguchi Yu
Grant amount：\4290000 （ Direct Cost: \3300000 、 Indirect Cost：\990000 ）
In this study, the adhesive force controlling method utilizing the structures has been investigated to create an object manipulation system with adhesion control. By creating adhesive devices and carrying out experiments of adhesion force measurements, a possibility of adhesion force control was suggested. Then, based on the results, small size adhesive devices were designed. By devising the structure, the pick-and-place mechanism with simple input was developed, and we succeeded to manipulate a flat and lightweight plate using the developed adhesive device.
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Compatibility of reversible adhesion and surface roughness absorption by inclining micro-structures of gecko inspired adhesives
Grant number：15K17933 2015.4 - 2018.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B) Grant-in-Aid for Young Scientists (B)
SEKIGUCHI Yu
Grant amount：\4290000 （ Direct Cost: \3300000 、 Indirect Cost：\990000 ）
In this study, influence of the structure inclination of a reversible adhesion type gecko inspired device incorporating the characteristics of micro/nano-structures of gecko foot hairs was clarified from both theoretical and experimental point of view. In addition, possibility of manipulation using the developed adhesive device was discussed. Specifically, manufacturing process of micro inclined structure on the surface of the devices was first investigated. By the proposed method, adhesive devices with various tip shapes were produced. From the adhesive force measurements using these devices, the effect of inclination of the structure on the adhesion force variation, and the effect of tip shape on the absorption of the surface roughness were investigated. Additionally, object manipulation using the produced adhesive device was succeeded based on these results.
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Development of bio-inspired adhesive attachment-and-detachment devices
Grant number：25889020 2013.8 - 2015.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity start-up Grant-in-Aid for Research Activity start-up
SEKIGUCHI YU
Grant amount：\2730000 （ Direct Cost: \2100000 、 Indirect Cost：\630000 ）
In this research, adhesion and detachment mechanisms of geckos' foot hairs, which have a great ability of attachment and detachment to rough surfaces, have been investigated analytically and experimentally. Additionally, the applicability of the mechanisms to adhesive grip-and-release devices has been discussed. The hairs are assumed to be inclined beams, side surface of which adheres to the surface of a rigid, and the adhesion force and detachment process were analyzed. It was investigated that the control of normal and tangential forces was important for the detachment process. Attachment and detachment of the inclined adhesive beams were experimentally verified.
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弾性梁の凝着による把持・脱離システムの最適設計と試作
Grant number：12J07674 2012 - 2013
日本学術振興会 科学研究費助成事業 特別研究員奨励費 特別研究員奨励費
関口 悠
Grant amount：\1800000 （ Direct Cost: \1800000 ）
本研究課題は, 生物の優れた特徴からヒントを得た凝着モデルによる把持脱離メカニズムの解明とその応用を目的としている. ヤモリなどの生物は, 手足の微細毛構造が物体表面に凝着することにより自身の体重を支えるのに十分な把持力を得ている. 微細毛構造による凝着現象の理解は, 凝着力を利用した把持脱離デバイスの設計の上で非常に有用であるとされる. ヤモリの手足先端に生えるSpatulaと呼ばれるナノサイズの毛はヘラ状であり, 毛の側面が凝着していると考えられている. ヤモリのSpatulaをヒントにし, 片持ち弾性梁の側面が平面基盤に凝着する梁側面凝着モデルを考案し, 理論・実験による検討を行った. 表面界面の自由エネルギーと弾性エネルギーの平衡条件より梁側面が凝着している状態で梁に働く力が導出され, 着脱時のヒステリシスが凝着力へ及ぼす影響が議論された. 更に, 弾性梁着脱プロセスの工夫による凝着力制御の可能性を検討するために梁の動きに注目し, 検討が行われた. ヤモリは素早い動きの中で把持脱離を繰り返すために複雑な足の動きをしていると考えられるが, 動きの中で微細毛に働く摩擦の向きをうまく利用し着脱しているとされる. 本研究では, 梁構造物に働く摩擦の向きが凝着力へ及ぼす影響を理論的に評価した. 摩擦の有無により, 梁の変形が影響を受ける. その結果, 弾性梁に働く摩擦が圧縮方向の場合に比べ引張方向の場合基盤垂直方向に働く凝着力が増大することが示された.