Omiya, Masaki

写真a

Affiliation

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

Position

Professor

E-mail Address

E-mail address

Related Websites

External Links

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

Academic Degrees 【 Display / hide

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

 

Research Areas 【 Display / hide

  • Materials/Mechanics of materials (Machine Material/Material Mechanics)

Research Keywords 【 Display / hide

  • Delamination

  • Coating

  • Interface

  • Fracture

  • Thin film

 

Books 【 Display / hide

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

    OMIYA Masaki, Kluwer Academic Publishers, 2007

  • 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

  • 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

  • Fatigue of Materials

    OMIYA Masaki, 培風館, 2005.03

    Scope: 193-212, 277-325

Papers 【 Display / hide

  • Modelling of intracranial behaviour on occiput impact in judo

    Suzuki R., Omiya M., Hoshino H., Kamitani T., Miyazaki Y.

    Computer Methods in Biomechanics and Biomedical Engineering (Computer Methods in Biomechanics and Biomedical Engineering)  22 ( 8 ) 797 - 805 2019.06

    ISSN  10255842

     View Summary

    © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. Acute subdural hematoma (ASDH) sometimes occurred in judo because of the bridging veins’ failure by rotation of the brain in the skull. However, the relationship between intracranial behaviour and the motion of the body on occiput impact has not yet been clarified. In this study, we developed an intracranial mechanical model based on multibody dynamics and compared it with experimental results. The results show the importance of modelling bridging veins and cerebral spinal fluid to the relative displacement between brain and skull. The proposed model will contribute to accident analyses or the optimum design of supporting devices.

  • Determination of traction-separation laws on an acrylic adhesive under shear and tensile loading

    Imanaka M., Omiya M., Taguchi N.

    Journal of Adhesion Science and Technology (Journal of Adhesion Science and Technology)  33 ( 6 ) 646 - 659 2019.03

    ISSN  01694243

     View Summary

    © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. Structural acrylic adhesives are of special interest because those adhesives are cured at room temperature and can be bonded to oily substrates. To use those adhesives widely for structural bonding, it is necessary to clarify the methodology for predicting strengths of bonding structures with those adhesives. Recently, cohesive zone models (CZMs) have been receiving intensive attentions for simulation of fracture strengths of adhesive joints, especially when bonded with ductile adhesives. The traction-separation laws under mode I and mode II loadings require to estimate fracture toughness of adhesively bonded joints. In this paper, the traction-separation laws of an acrylic adhesive in mode I and mode II were directly obtained from experiments using Arcan type adhesively bonded specimens. The traction-separation laws were determined by simultaneously recording the J-integral and the opening displacements in the directions normal and tangential to the adhesive layer, respectively.

  • Estimation of static strength of adhesively bonded single lap joints with an acrylic adhesive under tensile shear condition based on cohesive zone model

    Imanaka M., Omiya M., Taguchi N.

    Journal of Adhesion Science and Technology (Journal of Adhesion Science and Technology)  33 ( 6 ) 660 - 674 2019.03

    ISSN  01694243

     View Summary

    © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. In this study, the tensile shear and bending tests of adhesively bonded single lap joints with the acrylic adhesive was evaluated experimentally and numerically. In the previous paper, the traction-separation laws in mode 1 and mode 2 for an acrylic adhesive were directly obtained from the observation of failure process using Arcan type adhesively bonded specimens: simultaneous measurements of the J-integral and the opening displacements in the directions normal, δ n and tangential to the adhesive layer, δ s respectively. The experimental results were compared with numerical simulations conducted in ABAQUS including cohesive damage model. The cohesive laws obtained in the previous paper were simplified to trapezoidal shape from the experimentally obtained ones which were indicated in the previous paper. A good agreement was found between the experimental and numerical results. Then, to investigate the damage evolution in the adhesive layer for some lap joints, microscopic video observation was conducted near the end of the adhesive layer, and the video image have been compared with the contours of damage variable obtained by FEM corresponding to the video images. The observed damage evolution also agrees with the trend of damage variable.

  • Investigation on simplified equation for estimating J-integral of adhesive joint and its application to galvannealed steel plate<sup>+</sup>1

    Ogawa K., Maeda R., Kobayashi T., Yokoi E., Furusawa T., Takada K., Omiya M.

    Materials Transactions (Materials Transactions)  60 ( 9 ) 1928 - 1935 2019

    ISSN  13459678

     View Summary

    © 2019 The Society of Materials Science, Japan Structural adhesives have been used to reduce weight and increase rigidity in recent automotive developments. This study focuses on the fracture behaviors of the cohesive zone under mixed-mode conditions, and a method for evaluation of the J-integral parameters using the displacement of the crack tip opening is proposed. The method is an application of the Dugdale model, which is known as an ideal model to work with a localized plasticity ahead of the crack tip. The validity of the method is verified through finite element analysis. Furthermore, the method is applied to adhesive joints on galvannealed steel, and its fracture mechanism is investigated.

  • Investigation on simplified equation for estimating J-integral of adhesive joint and its application to galvannealed steel plate

    Ogawa K., Maeda R., Kobayashi T., Yokoi E., Furusawa T., Takada K., Omiya M.

    Zairyo/Journal of the Society of Materials Science, Japan (Zairyo/Journal of the Society of Materials Science, Japan)  67 ( 12 ) 1042 - 1049 2018.12

    ISSN  05145163

     View Summary

    2018 The Society of Materials Science, Japan Structural adhesives are used for the purpose of weight saving and rigidity improvement in recent automotive development. In this study, fracture behaviors of a cohesive zone under mixed-mode conditions were focused on, and an evaluation method for the parameters of J-integral using the crack tip opening displacement was proposed. The method is an application of the Dugdale model which is known as an idea to deal with localized plasticity region of a crack tip for adhesive joints. Validity of the method was verified using finite element analysis. Furthermore, the method was applied for adhesive joint on galvannealed steel and its fracture mechanism was investigated.

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

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

    Introduction and explanation (scientific journal), Single Work

Presentations 【 Display / hide

  • Influence of Electrode Young's modulus on Deformation Behavior of Ionic Polymer Metal Composite Actuator with Palladium Electrodes

    KAWAI Tomoki, OMIYA Masaki

    Asia-Pacific Conference on Fracture and Strength 2016 (APCFS2016) (Toyama, Japan) , 2016.09, Oral Presentation(general), KSME-MFD, CMES-IMME, AFG, JSME-MMD

  • Measurement of Dynamic Mechanical Properties by Collision of Hard Particles

    KITA Akihiro, OMIYA Masaki, OTA shunpei and KOMOTORI Jun

    Asia-Pacific Conference on Fracture and Strength (APCFS2016) (Toyama, Japan) , 2016.09, Oral Presentation(general), KSME-MFD, CMES-IMME, AFG, JSME-MMD

  • Analysis of Cable Dynamics for Ground Power Operated Gondola Type Space Elevator

    SASAKI Hidemi, OMIYA Masaki, HOSHINO Hiroaki

    The 4th Joint International Conference on Multibody System Dynamics (Montreal, Canada) , 2016.05, Oral Presentation(general)

     View Summary

    A space elevator has been proposed as a future space transportation system. It is the concept of the space elevator to stretch a cable from the surface of the Earth by the centrifugal force of rotation, and to use it for transporting cargo into space.
    Two types of the space elevator have been proposed, based on the operation method. One is a climber type, which is operated by self-climbing carriers that are called “climber”. Second is a gondola type, which is operated by stationary power via the cable. A lot of studies about the climber type have been carried out from 1990s. By contrast, the gondola type has not been studied well, because the gondola type has disadvantages such as the requirement of high mechanical strength for power source elements.
    Therefore, in this report, we suggest Ground Power Operated Gondola Type Space Elevator, as shown in Fig.1, and consider its cable dynamics such as a method which is commonly used for the climber type. The greatest characteristic of the suggested space elevator is the circulating of the cable, which has an advantageous in maintenance of the cable.

    abstract_Analysis_of_Cable_Dynamics_for_Ground_Power_Operated_Gondola_Type_Space_Elevator.pdf

  • A study on plastic ηpl approach in J and CTOD estimations for clamped SENT specimens

    Enyang wang, Masaki Omiya

    3rd International Workshops on Advances in Computational Mechanics (Tokyo, Japan) , 2015.10, Oral Presentation(guest/special), Japan Society for Computational Engineering and Science

  • 破壊予測のためのシミュレーション技術

    大宮 正毅

    Mechanical Designユーザー会 (東京都) , 2015.07, Oral Presentation(guest/special), 株式会社メカニカルデザイン

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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, 大宮 正毅, Grant-in-Aid for Scientific Research (C), 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, 大宮 正毅, Grant-in-Aid for Scientific Research (C), Principal Investigator

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

    Application No.: 特願2018-017652  2018.02 

    Patent, Joint, National application

  • 半導体集積回路の配線構造設計装置

    Application No.: 特願2014-211318  2014.10 

    Patent, Joint, National application

  • 構造物荷重伝達計算装置

    Application No.: 特願2013-131205  2013.06 

    Announcement No.: 特開2015-5230  2015.01 

    Patent, Joint, National application

  • 表層密着強度測定方法および装置

    Application No.: 特願2009-223824  2009.09 

    Announcement No.: 特開2011-75286  2011.04 

    Patent, Joint, National application

  • 誘電経路の数値解析装置

    Application No.: 特願2009-191632  2009.08 

    Announcement No.: 特開2011-43982  2011.03 

    Patent, Joint, National application

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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 Awards.  Country: USA

  • 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: Awards of National Conference, Council and Symposium.  Country: 日本

  • 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: Awards of National Conference, Council and Symposium

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

    OMIYA Masaki, 2006.10, 日本材料学会

    Type of Award: Awards of National Conference, Council and Symposium

  • 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: Awards of National Conference, Council and Symposium

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Courses Taught 【 Display / hide

  • TOPICS IN MULTIDISCIPLINARY SCIENCE

    2019

  • STRENGTH AND FRACTURE OF MATERIALS

    2019

  • STRENGTH AND FRACTURE OF MATERIALS

    2019

  • PROJECT LABORATORY IN MECHANICAL ENGINEERING

    2019

  • INTRODUCTION TO MECHANICS OF MATERIALS

    2019

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Courses Previously Taught 【 Display / hide

  • 材料強度学

    Keio University, 2016, Autumn Semester, Major subject, Lecture, Within own faculty, 1h

  • 形状情報の表現

    Keio University, 2016, Autumn Semester, Major subject, Laboratory work/practical work/exercise, Within own faculty, 2h

  • 材料と構造の強度学

    Keio University, 2016, Autumn Semester, Major subject, Lecture, 1h

  • マルチディシプリナリ科学特別講義

    Keio University, 2016, Spring Semester, Major subject, Lecture

  • 理工学基礎実験

    Keio University, 2016, Spring Semester, General education subject, Laboratory work/practical work/exercise, Within own faculty, 2h

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Social Activities 【 Display / hide

  • International Journal of Theoretical and Applied Multiscale Mechanics

    2009.01
    -
    Present

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

  • 2016.05
    -
    Present

    委員, 日本材料学会企画・広報委員会

  • 2016.04
    -
    Present

    委員長, 自動車技術会構造強度部門委員会

  • 2016.04
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    2017.03

    幹事, 日本機械学会材料力学部門

  • 2015.08

    講師, 日本材料学会主催 第25回初心者のための疲労設計講習会

  • 2015.04
    -
    Present

    主査, 自動車技術会構造強度部門委員会き裂進展WG

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