Kotaro MORIAssociate Professor
■Researcher basic information
Organization
- College of Engineering Department of Mechanical Systems Engineering
- Graduate School of Science and Engineering(Master's Program) Major in Mechanical Systems Engineering
- Graduate School of Science and Engineerin(Doctoral Program) Major in Complex Systems Science
- Faculty of Applied Science and Engineering Domain of Mechanical Systems Engineering
Research Areas
Research Keyword
Educational Background
- 01 Apr. 2010 - 27 Mar. 2013, Tohoku University, Graduate School of Engineering, Department of Materials Processing
- Apr. 2010 - Mar. 2013, Tohoku University, Graduate School of Engineering, Department of Materials Processing
- 01 Apr. 2008 - 25 Mar. 2010, Tohoku University, Graduate School of Engineering, Department of Materials Processing
- Apr. 2008 - Mar. 2010, Tohoku University, Graduate School of Engineering, Department of Materials Processing
- Apr. 2004 - Mar. 2008, Tohoku University, Faculty of Engineering, Department of Materials Science and Engineering
■Research activity information
Paper
- 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, Lead, 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, 10 Aug. 2021, [Reviewed] - Evaluation of the Axial Force in an FeCo Bolt using the Inverse Magnetostrictive Effect
Mori; K. Horibe; T. and Maejima; K, Lead
Measurement, 04 Jul. 2020, [Reviewed] - 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, Jun. 2020, [Reviewed] - 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, Jun. 2020, [Reviewed] - 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, 25 Mar. 2020, [Reviewed] - 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, 10 Apr. 2018, [Reviewed] - Large Deflection of Tapered Cantilever Beams Made of Axially Functionally Graded Material
Horibe; T. and Mori; K
Mechanical Engineering Journal, 10 Jan. 2018, [Reviewed] - 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, 23 Oct. 2017, [Reviewed] - Three-Point Bending Fatigue of Cracked Giant Magnetostrictive Materials under Magnetic Fields
Narita; F. Shikanai; K. Shindo; Y. and Mori; K
Acta Mechanica, 25 Jun. 2017, [Reviewed] - 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, Nov. 2016, [Reviewed] - Stresses Around an Eccentric Hole in an Infinite strip Subjected to In-Plane Bending
Horibe; T. Sakurai; K. Arai; Y. and 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, 03 Aug. 2015, [Reviewed] - 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, [Reviewed] - 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, [Reviewed] - 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, [Reviewed] - 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, [Reviewed] - Effect of Electric Field on the Response of Clamped-Free Magnetostrictive/Piezoelectric/Magnetostrictive Laminates
Kotaro Mori; Fumio Narita; Yasuhide Shindo
Computers, Materials & Continua, 2011, [Reviewed] - Electromagneto-mechanical Fields of Giant Magnetostrictive/Piezoelectric Laminates
Yasuhide Shindo; Kotaro Mori; Fumio Narita
Acta Mechanica, 2010, [Reviewed] - 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, [Reviewed]
Lectures, oral presentations, etc.
- 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, May 2013 - 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, Mar. 2013 - 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, Mar. 2013 - 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, Sep. 2012 - 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, Jun. 2012 - 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, Oct. 2011 - 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, Mar. 2011 - 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, Mar. 2011 - Nonlinear Electromagneto-mechanical Behavior of Giant Magnetostrictive/Piezoelectric Laminated Composites under AC Electric Fields
Kotaro Mori; Yasuhide Shindo; Fumio Narita
KINKEN-WAKATE 2010, Dec. 2010 - 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, Sep. 2010 - 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, Aug. 2010 - 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, Jun. 2010 - 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, May 2010 - 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, May 2010 - 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, Mar. 2010 - 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, Mar. 2010 - 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, Sep. 2009 - 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, Sep. 2009 - 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, May 2009 - 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, Mar. 2009