Transient hydrogen diffusion analyses coupled with crack-tip plasticity under cyclic loading |
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| Authors: | Hirokazu Kotake Ryosuke Matsumoto Shinya Taketomi Noriyuki Miyazaki |
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| Affiliation: | 1. Graduated School of Engineering, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan;2. Department of Mechanical Engineering and Science, Kyoto University, Japan;3. National Institute of Advanced Industrial Science and Technology, Japan |
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| Abstract: | ![]()
The effect of hydrogen on the material strengths of metals is known as the hydrogen embrittlement, which affects the structural integrity of a hydrogen energy system. In the present paper, we developed a computer program for a transient hydrogen diffusion–elastoplastic coupling analysis by combining an in-house finite element program with a general purpose finite element computer program to analyze hydrogen diffusion. In this program, we use a hypothesis that the hydrogen absorbed in the metal affects the yield stress of the metal. |
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| Keywords: | Numerical analysis Finite element method Coupling problem Hydrogen embrittlement Hydrogen diffusion Blunting crack tip Coupled effect parameter Frequency effect |
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