モリ コウタロウ
森 孝太郎准教授
Kotaro MORI

■研究者基本情報

組織

  • 工学部 機械システム工学科
  • 理工学研究科(博士前期課程) 機械システム工学専攻
  • 理工学研究科(博士後期課程) 複雑系システム科学専攻
  • 応用理工学野 機械システム工学領域

研究分野

  • ものづくり技術(機械・電気電子・化学工学), 材料力学、機械材料, 機械材料・材料力学

研究キーワード

  • 材料力学、有限要素法、超磁歪材料、圧電材料、環境発電

学位

  • 2010年03月 修士(工学)(東北大学)
  • 2013年03月 博士(工学)(東北大学)

学歴

  • 2010年04月01日 - 2013年03月27日, 東北大学, 工学研究科, 材料システム工学専攻
  • 2010年04月 - 2013年03月, 東北大学, 工学研究科, 材料システム工学専攻
  • 2008年04月01日 - 2010年03月25日, 東北大学, 工学研究科, 材料システム工学専攻
  • 2008年04月 - 2010年03月, 東北大学, 工学研究科, 材料システム工学専攻
  • 2004年04月 - 2008年03月, 東北大学, 工学部, 材料科学総合学科

■研究活動情報

論文

  • On the Possibility of Developing Magnetostrictive Fe-Co/Ni Clad Plate with Both Vibration Energy Harvesting and Mass Sensing Elements
    Mori; K. Wang; Y. Katabira; K. Neyama; D. Onodera; R. Chiba; D. Watanabe; M. and Narita; F, 筆頭著者, The severe acute respiratory syndrome coronavirus (SARS-CoV-2) has spread rapidly around the world. In order to prevent the spread of infection, city blockades and immigration restrictions have been introduced in each country, but these measures have a severe serious impact on the economy. This paper examines the possibility of both harvesting vibration energy and detecting mass by using a magnetostrictive alloy. Few efforts have been made to develop new magnetostrictive biosensor materials. Therefore, we propose magnetostrictive Fe-Co/Ni clad steel vibration energy harvesters with mass detection, and we numerically and experimentally discuss the effect of the proof mass weight on the frequency shift and output voltage induced by bending vibration. The results reveal that the frequency and output voltage decrease significantly as the mass increases, indicating that the energy harvesting device is capable of mass detection. In the future, device miniaturization and the possibility of virus detection will be considered., MDPI AG
    Materials, 2021年08月10日, [査読有り]
  • Evaluation of the Axial Force in an FeCo Bolt using the Inverse Magnetostrictive Effect               
    Mori; K. Horibe; T. and Maejima; K, 筆頭著者
    Measurement, 2020年07月04日, [査読有り]
  • はりの大たわみの近似式に基づくヤング率測定法(片持ちはりおよび3点曲げの場合)               
    ばね論文集, 2020年06月, [査読有り]
  • 大たわみに基づくヤング率および摩擦係数の同時同定法               
    ばね論文集, 2020年06月, [査読有り]
  • Fabrication, Modeling and Characterization of Magnetostrictive Short Fiber Composites
    Zhenjin Wang; Kotaro Mori; Kenya Nakajima; Fumio Narita, Magnetostrictive materials have a wide variety of applications due to their great capability as sensors and energy-harvesting devices. However, their brittleness inhibits their applications as magnetostrictive devices. Recently, we developed a continuous magnetostrictive Fe-Co-fiber-embedded epoxy matrix composite to increase the flexibility of the material. In this study, we fabricated random magnetostrictive Fe-Co short fiber/epoxy composite sheets. It was found that the discontinuous Fe-Co fiber composite sheet has the magnetostrictive properties along the orientation parallel to the length of the sheet. Finite element computations were also carried out using a coupled magneto-mechanical model, for the representative volume element (RVE) of unidirectional aligned magnetostrictive short fiber composites. A simple model of two-dimensional, randomly oriented, magnetostrictive short fiber composites was then proposed and the effective piezomagnetic coefficient was determined. It was shown that the present model is very accurate yet relatively simple to predict the piezomagnetic coefficient of magnetostrictive short fiber composites. This magnetostrictive composite sheet is expected to be used as a flexible smart material., MDPI AG
    Materials, 2020年03月25日, [査読有り]
  • Effect of Weight on the Resonant Tuning of Energy Harvesting Devices Using Giant Magnetostrictive Materials
    Mori; K. Horibe; T. and Ishikawa; S, MDPI AG
    Materials, 2018年04月10日, [査読有り]
  • Large Deflection of Tapered Cantilever Beams Made of Axially Functionally Graded Material               
    Horibe, T; Mori, K
    Mechanical Engineering Journal, 2018年01月10日, [査読有り]
  • Potential of Energy Harvesting in Barium Titanate Based Laminates from Room Temperature to Cryogenic/High Temperatures: Measurements and Linking Phase Field and Finite Element Simulations
    Narita; F. Fox; M. Mori; K. Takeuchi; H. Kobayashi T. and Omote; K
    Smart Materials and Structures, 2017年10月23日, [査読有り]
  • Three-Point Bending Fatigue of Cracked Giant Magnetostrictive Materials under Magnetic Fields               
    Narita; F. Shikanai; K. Shindo, Y; Mori, K
    Acta Mechanica, 2017年06月25日, [査読有り]
  • Effect of the Loading Rate on the Brittle Fracture of Terfenol-D Specimens in Magnetic Field: Strain Energy Density Approach
    M. Colussi; F. Berto; K. Mori; F. Narita
    STRENGTH OF MATERIALS, 2016年11月, [査読有り]
  • Stresses Around an Eccentric Hole in an Infinite strip Subjected to In-Plane Bending
    Horibe; T. Sakurai; K. Arai, Y; Mori, K, In this paper, we present an analytical solution for an infinite strip having an eccentric circular hole when the strip is subjected to in-plane bending at infinity. The analysis is based on the Papkovich-Neuber displacement potentials and the solution is obtained by a proper combination of harmonic function in integral forms and infinite series. The boundary conditions on both sides of the strip and around the hole are satisfied using the relations between the Cartesian and polar harmonics. The numerical results obtained are compared with those of FEM. A detailed stresses around the eccentric hole are illustrated for the various size of the eccentricity and the hole radius., The Japan Society of Mechanical Engineers
    Mechanical Engineering Journal, 2015年08月03日, [査読有り]
  • Dynamic Electromagneto-mechanical Behavior of Clamped-Free Giant Magnetostrictive/Piezoelectric Laminates under AC Electric Fields               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    Smart Materials and Structures, 2012年, [査読有り]
  • Electromagneto-mechanical Behavior of Giant Magnetostrictive/Piezoelectric Laminates in Three-Point Bending under Electric Fields               
    Yasuhide Shindo; Yuzo Kori; Kotaro Mori; Fumio Narita
    Advances in Theoretical and Applied Mechanics, 2012年, [査読有り]
  • Electromagneto-mechanical Fields of Giant Magnetostrictive/Piezoelectric Laminates under Concentrated Load               
    Yasuhide Shindo; Yuzo Kori; Kotaro Mori; Fumio Narita
    International Journal of Smart and Nano Materials, 2012年, [査読有り]
  • Electromagneto-mechanical Behavior of Giant Magnetostrictive/Piezoelectric Laminates under Electric Fields for Self-Sensing Cantilever Actuator               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    Journal of Solid Mechanics and Materials Engineering, 2011年, [査読有り]
  • Effect of Electric Field on the Response of Clamped-Free Magnetostrictive/Piezoelectric/Magnetostrictive Laminates
    Kotaro Mori; Fumio Narita; Yasuhide Shindo
    Computers, Materials & Continua, 2011年, [査読有り]
  • Electromagneto-mechanical Fields of Giant Magnetostrictive/Piezoelectric Laminates               
    Yasuhide Shindo; Kotaro Mori; Fumio Narita
    Acta Mechanica, 2010年, [査読有り]
  • Nonlinear Bending Response of Giant Magnetostrictive Laminated Actuators in Magnetic Fields
    Yasuhide Shindo; Fumio Narita; Kotaro Mori; Tasuku Nakamura
    Journal of Mechanics of Materials and Structures, 2009年, [査読有り]

講演・口頭発表等

  • 繰返し曲げを受ける超磁歪/圧電積層カンチレバーの感知・応答特性               
    森孝太郎,進藤裕英,成田史生,大倉宗
    第25回「電磁力関連のダイナミクス」シンポジウム, 2013年05月
  • 集中荷重を受ける超磁歪/圧電積層カンチレバーの感知・応答特性               
    森孝太郎,進藤裕英,成田史生
    日本機械学会東北支部第48期総会・講演会, 2013年03月
  • Detection and Response Characteristics of Clamped-Free Giant Magnetostrictive/Piezoelectric Laminates under Bending               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    Excellent Graduate Schools 2012 Annual Students Research Presentation, 2013年03月
  • 交流電場下における片持ち超磁歪/圧電積層材料の動的曲げ               
    森孝太郎,進藤裕英,成田史生
    日本機械学会東北支部第48期秋季講演会, 2012年09月
  • Bending Response of Giant Magnetostrictive/Piezoelectric Laminated Cantilevers under Concentrated Loads               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    2012 Joint Symposium Materials Science and Engineering for the 21st Century, 2012年06月
  • 集中荷重を受ける超磁歪/圧電積層材料の電磁力学場               
    桑折友三,進藤裕英,森孝太郎,成田史生
    第55回日本学術会議材料工学連合講演会, 2011年10月
  • 超磁歪/圧電/超磁歪積層材料の応答特性に及ぼす電場の影響               
    森孝太郎,進藤裕英,成田史生
    第60回理論応用力学講演, 2011年03月
  • Nonlinear Bending Behavior of Terfenol-D/PZT Laminated Composites under DC and AC Electric Fields               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    平成22年度若手研究者研究報告会, 2011年03月
  • Nonlinear Electromagneto-mechanical Behavior of Giant Magnetostrictive/Piezoelectric Laminated Composites under AC Electric Fields               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    KINKEN-WAKATE 2010, 2010年12月
  • 電磁場下における超磁歪/圧電積層デバイスの感知・応答特性               
    成田史生,森孝太郎,進藤裕英
    日本機械学会2010年度年次大会, 2010年09月
  • Effect of Electric Field on the Bending Behavior of Terfenol-D/PZT Laminated Devices               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    The 4th IMR/Korea University Student Exchange Seminar, 2010年08月
  • Nonlinear Bending Behavior of Magnetostrictive/Piezoelectric Laminated Devices under Electric Fields               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    Joint Symposium on the MSE for the 21st Century 2010 DAEJEON, 2010年06月
  • 電場下における超磁歪/圧電積層デバイスの非線形曲げ挙動               
    森孝太郎,進藤裕英,成田史生
    第22回「電磁力関連のダイナミクス」シンポジウム, 2010年05月
  • Effect of Electric Field on the Bending Response of Magnetostrictive/Piezoelectric Laminated Composites               
    Kotaro Mori; Fumio Narita; Yasuhide Shindo
    International Symposium on Aircraft Materials 2010, 2010年05月
  • 電磁場下における超磁歪/圧電積層デバイスの非線形曲げ挙動               
    成田史生,進藤裕英,森孝太郎
    日本金属学会2010年春期(第146回)大会, 2010年03月
  • Nonlinear Bending Response of Terfenol-D/PZT Laminated Devices under Electromagnetic Fields               
    Kotaro Mori; Fumio Narita; Yasuhide Shindo
    SPIE 17th Annual International Symposium on Smart Structures/NDE, 2010年03月
  • 超磁歪/圧電積層デバイスの電磁力学場               
    森孝太郎,成田史生,進藤裕英
    日本機械学会2009年度年次大会, 2009年09月
  • Nonlinear Bending Response of Terfenol-D/PZT Laminated Devices under Magnetic Fields               
    Kotaro Mori; Yasuhide Shindo; Fumio Narita
    Joint Symposium on Materials Science and Engineering for the 21st Century 2009 KYOTO, 2009年09月
  • 磁場内における超磁歪積層アクチュエータの非線形曲げ応答               
    森孝太郎,進藤裕英,成田史生
    第21回「電磁力関連のダイナミクス」シンポジウム, 2009年05月
  • Effect of Magnetic Field on the Bending Response of Magnetostrictive/Piezoelectric Laminated Actuators               
    Fumio Narita; Yasuhide Shindo; Kotaro Mori
    SPIE 16th Annual International Symposium on Smart Structures/NDE, 2009年03月

所属学協会

  • 2013年08月, 日本金属学会
  • 2012年06月, 日本機械学会