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Dive into the research topics where Kyohei Takeo is active.

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Featured researches published by Kyohei Takeo.


Key Engineering Materials | 2016

Effect of Acrylic Foam Film on Impact Reduction

Kyohei Takeo; Taichi Nogami; Tadaharu Adachi; Ryohei Koretoh; Hitoshi Tada

Recently, Thin Foam Films are Applied to Cushion Materials on Various Instruments, such as Mobile Phones, Tablet Computers, Etc. because of Reducing Load due to Drop Impact or Collision. Testing Methods of the Thin Films must Be Established to Estimate Effect of Thin Films on Reduction of the Impact Load. in this Research, Impact Reduction Effect of the Acrylic Foam Film with a Thickness below 1000μm was Clarified by Developing a Falling Weight Testing Machine. Maximum Value of the Impact Load Decreased Dominantly and the Plateau Region was Longer as the Thickness Increased. the Duration of the Load was Longer for the Thicker Film. Therefore, the Thin Acrylic Foam Films were Found to Be Effective in the Reduction of the Large Impact Load over 20 Kn.


Mechanical Engineering Journal | 2018

Measurement of dynamic fracture toughness by double torsion testing

Tadaharu Adachi; Zoltan Major; Kenji Fujii; Kohei Mikuma; Markus Karamoy Umboh; Kyohei Takeo; Yosuke Ishii


Technologies | 2017

Finite Element Analysis of Self-Healing and Damage Processes in Alumina/SiC Composite Ceramics

Marika Nakamura; Kyohei Takeo; Toshio Osada; Shingo Ozaki


Transactions of the JSME (in Japanese) | 2015

Effect of impact reduction due to acrylic foam film

Kyohei Takeo; Tadaharu Adachi; Masashi Osada; Masahiro Higuchi; Ryohei Koretoh; Hitoshi Tada


Journal of the American Ceramic Society | 2018

Finite element analysis of fracture statistics of ceramics: Effects of grain size and pore size distributions

Shingo Ozaki; Yuya Aoki; Toshio Osada; Kyohei Takeo; Wataru Nakao


The Proceedings of the Materials and Mechanics Conference | 2017

Finite element analysis of the self-healing process in alumina/SiC composite ceramics

Marika Nakamura; Kyohei Takeo; Toshio Osada; Shingo Ozaki


The Proceedings of the Materials and Mechanics Conference | 2017

Study on Crack Deflection Penetration Criteria of Self-healing Fiber-reinforced Ceramics Using Finite Element Analysis

Kyohei Takeo; Yoshitomo Oba; Toshio Osada; Wataru Nakao; Shingo Ozaki


The Proceedings of The Computational Mechanics Conference | 2017

Finite element analysis of ceramics strength considering stochastic distribution of microstructure

Yuya Aoki; Kyohei Takeo; Toshio Osada; Shingo Ozaki


The Proceedings of Mechanical Engineering Congress, Japan | 2017

Competitive Tensile Test of Self-Healing Fiber-Reinforced Ceramics by Finite Element Analysis

Kyohei Takeo; Yoshitomo Oba; Wataru Nakao; Shingo Ozaki


Mechanical Engineering Journal | 2017

Numerical study on crack bifurcation of self-healing fiber-reinforced ceramic matrix composite

Yoshitomo Oba; Kyohei Takeo; Wataru Nakao; Shingo Ozaki

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Shingo Ozaki

Yokohama National University

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Toshio Osada

National Institute for Materials Science

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Tadaharu Adachi

Toyohashi University of Technology

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Wataru Nakao

Yokohama National University

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Yoshitomo Oba

Yokohama National University

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Marika Nakamura

Yokohama National University

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Masashi Osada

Toyohashi University of Technology

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Yuya Aoki

Yokohama National University

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Joji Yamamoto

Yokohama National University

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