Omiya, Masaki

写真a

Affiliation

Faculty of Science and Technology, Department of Mechanical Engineering (Yagami)

Position

Professor

Related Websites

External Links
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Career 【 Display / hide 】

  • 1998.04
    -
    2002.03

    Tokyo Institute of Technology, Department of Mechanical and Intelligent Systems Engineering, Associate Researcher

  • 2002.04
    -
    2007.03

    Tokyo Institute of Technology, Department of Mechanical and Control Engineering, Associate Researcher

  • 2003.04
    -
    2007.03

    Scientific High School of Tokyo Institute of Technology, 専攻科, Lecturer

  • 2007.04
    -
    2010.03

    Keio University, Department of Mechanical Engineering, Assistant Professor

  • 2008.04
    -
    2009.03

    青山学院大学, 理工学部, 非常勤講師

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Academic Background 【 Display / hide 】

  • 1996.03

    Tokyo Institute of Technology, Faculty of Engineering, Department of Mechanical and Production Engineering

    University, Graduated

  • 1998.03

    Tokyo Institute of Technology, Graduate School, Division of Science and Engineering, Department of Mechanical and Production Engineering

    Graduate School, Completed, Master's course

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Academic Degrees 【 Display / hide 】

  • Doctor of Engineering, Tokyo Institute of Technology, Dissertation, 2005.10

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Research Areas 【 Display / hide 】

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials (Machine Material/Material Mechanics)

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Research Keywords 【 Display / hide 】

  • Delamination

  • Coating

  • Interface

  • Fracture

  • Thin film

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Books 【 Display / hide 】

  • 楽しく学ぶ　破壊力学

    成田　史生，大宮　正毅，荒木　稚子, 朝倉書店, 2020.04,  Page： 129

  • Micro- and Opto-Electronic Materials and Structures: Physics, Mechanics, Design, Reliability, Packaging

    OMIYA Masaki, Kluwer Academic Publishers, 2007

  • 金属ナノ粒子ペーストのインクジェット微細配線

    Masaki OMIYA, Kikuo KISHIMOTO, シーエムシー出版, 2006

    Scope: 227-236

  • 有機／金属・無機界面のメカニズム

    OMIYA Masaki, サイエンス＆テクノロジー, 2006

    Scope: 202-211

  • Fatigue of Materials

    OMIYA Masaki, 培風館, 2005.03

    Scope: 193-212, 277-325

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Papers 【 Display / hide 】

  • Estimation of fracture behavior of CFRP/CFRP adhesively bonded joints under mixed-mode conditions using a cohesive zone model

    Yousuke Kouno, Makoto Imanaka, Ryutaro Hino, Masaki Omiya & Fusahito Yoshida

    Journal of Adhesion Science and Technology (Taylor & Francis)   2024.05

    Research paper (scientific journal), Joint Work, Accepted

  • Plastic behavior of a film type of epoxy adhesive under a wide range of stress multiaxiality conditions

    Yousuke Kouno, Makoto Imanaka, Ryutaro Hino, Masaki Omiya, Fusahito Yoshida

    Journal of Adhesion Science and Technology (Taylor & Francis)   2024.03

    Research paper (scientific journal), Joint Work, Accepted

  • Local mechanical characterization and fracture prediction modeling for resistance spot-welded joints of advanced high-strength steel

    Zhenduo Yao, Masaki Omiya, Ninshu Ma, Shinnosuke Nishi, Kenji Takada, Kazuaki Okato, Kai Oide, Takaya Kobayashi, Jike Han, Kenjiro Terada

    Materials Today Communications (Elsevier)  36   106787 2023.08

    Research paper (scientific journal), Joint Work, Corresponding author, Accepted

  • Design and fabrication of micro and nano surface structures for enhancing metal–polymer adhesion using femtosecond laser treatment

    Omiya M., Nakajima A., Yan J.

    Materials and Design (Materials and Design)  224 2022.12

    ISSN  02641275

    　View Summary

    This study investigated the effects of micro- and nanostructures on the adhesion strength between copper and an encapsulating mold compound (EMC). The shape of the microgrooves was designed based on fracture mechanics theory, and the effect of laser-induced periodic structure surface (LIPSS) formation on the microgroove was investigated using numerical simulations. The designed surface profiles were fabricated using femtosecond laser treatments, and the adhesion strength between copper and the EMC was evaluated. The results show that deep microgrooves improved the adhesion strength owing to the anchor effect. However, the aspect ratio between the pitch and depth of the microgroove had a limitation in enhancing the adhesion strength. The formation of LIPSSs on the mountaintop of the microgroove was very effective; however, an LIPSS on the valley of the microgroove was ineffective. Numerical analyses revealed that LIPSSs suppressed the shear deformation of the EMC and worked as resistance to interface delamination. Based on the findings obtained in this study, combining micro- and nano-scale surface structure formation with femtosecond laser treatments is an effective and eco-friendly method for improving adhesion strength.

  • Effect of rubber modification on fracture toughness of epoxy adhesives under mode I and mode II loading

    Makoto Imanaka, Masaki Omiya, Keisuke Hara, Hayato Nakatani

    Theoretical and Applied Fracture Mechanics (Elsevier)  122   103604 2022.09

    Research paper (scientific journal), Joint Work, Corresponding author, Accepted,  ISSN  01678442

    　View Summary

    In the present study, the effects of rubber modification on the joint strength and fracture toughness of epoxy adhesives under mode I and II loading were investigated using Arcan-type adhesively bonded joints. The results of the fracture tests under mode I loading revealed the occurrence of stress whitening owing to triaxial tensile stresses near the crack tip. The joint strength and fracture toughness were calculated using the J-integral value, where the adhesive layer was considered as an elastic–plastic material. The crack-growth energy was also calculated using the J-integral value, where the adhesive layer was considered as an elastic material. The results revealed that rubber modification under mode I loading induced an increase in the joint strength, fracture toughness, and crack-growth energy. Rubber modification under mode II loading did not induce stress whitening near the crack tip owing to low triaxial tensile stresses. However, macroscopic void growth and significant plastic deformation were observed in the adhesive layer. Rubber modification induced a slight decrease in the joint strength; however, it induced a significant increase in the fracture toughness owing to the growth of the plastic zone in the adhesive layer. The calculated crack-growth energy decreased slightly, in accordance with the joint strength. It was concluded that rubber modification contributed to an increase in the crack-growth resistance under mode I loading and not under mode II loading. Furthermore, a correlation was observed between the joint strength and crack-growth energy.

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Papers, etc., Registered in KOARA 【 Display / hide 】

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Reviews, Commentaries, etc. 【 Display / hide 】

  • ⅩⅣ．Physics of Adhesion (4)Damage-based Cohesive Zone Model

    OMIYA Masaki

    日本接着学会誌 48 ( 2 )  2012

    Article, review, commentary, editorial, etc. (scientific journal), Single Work

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Presentations 【 Display / hide 】

  • 自動車用高強度薄板鋼板におけるき裂発生・進展挙動計測とその予測

    大宮正毅

    大阪大学接合科学研究所国際連携溶接計算科学研究拠点第 14 回講演会 (大阪) , 

    2022.03
    , 

    Oral presentation (keynote), 大阪大学接合科学研究所

  • Fracture and Strength of Advanced High Strength Steels for Car Body Structures

    Masaki Omiya

    2022 International Joint Symposium on Convergence Technology of Mechanical Engineering (Online) , 

    2022.01
    , 

    Oral presentation (invited, special), Chonnam National University, Hanyang University

  • Hydrogen-assisted ionic polymer metal composite (IPMC) actuator

    M. Omiya, M. Kurokawa

    The 7th Asian Conference on Mechanics of Functional Materials and Structures (ACMFMS2020+1), 

    2021.03
    , 

    Oral presentation (general)

  • Ductile-Brittle Transition of Crack Propagation for Automotive Advanced High Strength Steels

    Masaki Omiya, Mayu Muramatsu, Kenji Takada, Kensuke Ogawa, Kai Oide, Takaya Kobayashi and Kenjiro Terada

    Asian Pacific Congress on Computational Mechanics (APCOM) (Taipei) , 

    2019.12
    , 

    Oral presentation (general)

  • Measurement of J Integral Values of Adhesive Joints between CFRP and Aluminum Alloy by Digital Image Correlation Method under Mixed mode Loadings

    S. Shimamoto, M Omiya

    5th International Conference on Material and Reliability (Jeju) , 

    2019.11
    , 

    Oral presentation (general)

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • 水素吸蔵型イオン導電性ハイブリッドアクチュエータの機械的・電気化学的特性評価

    2018.04
    -
    2021.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Research grant, Principal investigator

  • Mechanical and Electrochemical Damage Mechanism of Ionic Polymer Metal Composite Actuators

    2015.04
    -
    2018.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Research grant, Principal investigator

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Intellectual Property Rights, etc. 【 Display / hide 】

  • 最適化計算装置、最適化計算方法及びプログラム

    Date applied： 特願2018-017652  2018.02 

    Patent, Joint

  • 半導体集積回路の配線構造設計装置

    Date applied： 特願2014-211318  2014.10 

    Patent, Joint

  • 構造物荷重伝達計算装置

    Date applied： 特願2013-131205  2013.06 

    Date announced： 特開2015-5230  2015.01 

    Patent, Joint

  • 表層密着強度測定方法および装置

    Date applied： 特願2009-223824  2009.09 

    Date announced： 特開2011-75286  2011.04 

    Patent, Joint

  • 誘電経路の数値解析装置

    Date applied： 特願2009-191632  2009.08 

    Date announced： 特開2011-43982  2011.03 

    Patent, Joint

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Awards 【 Display / hide 】

  • 2013 Best Paper Award

    Yusuke Kai, Masaki Omiya, Yuki Kitayama, Hideyuki Kumei, Tomoaki Uchiyama, 2014.06, ASME, American Society of Mechanical Engineer, In-situ Observation of Deformation Behavior of MEA under Humidity Cycles

    Type of Award： International academic award (Japan or overseas),  Country： United States

  • 日本機械学会関東支部神奈川ブロック貢献賞

    2013.11, 日本機械学会関東支部神奈川ブロック

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 日本機械学会奨励賞（研究）

    OMIYA Masaki, 2007.04, 日本機械学会, 異種接着・接合界面の力学モデルの構築と界面強度評価法の研究

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • Ohji-Ohtsuka-Okamura Award, Japan Society of Material Science

    OMIYA Masaki, 2006.10, 日本材料学会

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 日本材料学会学術講演優秀発表賞

    OMIYA Masaki, 2006.05, 日本材料学会

    Type of Award： Award from Japanese society, conference, symposium, etc.

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Courses Taught 【 Display / hide 】

  • STRENGTH AND FRACTURE OF MATERIALS

    2025

  • STRENGTH AND FRACTURE OF MATERIALS

    2025

  • SPECIAL LECTURE SERIES ON MULTIDISCIPLINARY AND DESIGN SCIENCE

    2025

  • LABORATORIES IN SCIENCE AND TECHNOLOGY

    2025

  • INTRODUCTION TO MECHANICS OF MATERIALS

    2025

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Courses Previously Taught 【 Display / hide 】

  • 材料力学の基礎

    Keio University

    2016.04
    -
    2017.03
    , 

    Spring Semester, Lecture, Within own ｆaculty, 1h, 52people

  • 材料強度学

    Keio University

    2016.04
    -
    2017.03
    , 

    Autumn Semester, Lecture, Within own ｆaculty, 1h

  • 形状情報の表現

    Keio University

    2016.04
    -
    2017.03
    , 

    Autumn Semester, Laboratory work/practical work/exercise, Within own ｆaculty, 2h

  • 材料と構造の強度学

    Keio University

    2016.04
    -
    2017.03
    , 

    Autumn Semester, Lecture, 1h

  • マルチディシプリナリ科学特別講義

    Keio University

    2016.04
    -
    2017.03
    , 

    Spring Semester, Lecture

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Social Activities 【 Display / hide 】

  • International Journal of Theoretical and Applied Multiscale Mechanics

    2009.01
    -
    Present
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Memberships in Academic Societies 【 Display / hide 】

  • 日本臨床スポーツ医学会, 

    2014.10
    -
    Present

  • 日本塑性加工学会, 

    2008.04
    -
    Present

  • 自動車技術会構造強度部門, 

    2008.03
    -
    Present

  • 自動車技術会, 

    2007.07
    -
    Present

  • Japan Society of Material Science, 

    2007.07
    -
    Present

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Committee Experiences 【 Display / hide 】

  • 2022.05
    -
    Present

    支部長, 日本材料学会関東支部

  • 2018.05
    -
    2020.04

    理事, 日本材料学会

  • 2018.04
    -
    2020.03

    庶務幹事, 日本機械学会関東支部

  • 2016.05
    -
    Present

    委員, 日本材料学会企画・広報委員会

  • 2016.04
    -
    2020.03

    委員長, 自動車技術会構造強度部門委員会

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