Using crystal plasticity finite element method to investigate the mechanical properties under uniaxial compression

Microstructure has great influences on the mechanical properties. In this paper, the rate-dependent constitutive model has been developed and implemented by user-defined material subroutine. A series of simulations have been done to test the subroutine. Cu single crystal (with FCC crystal structure)...

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Bibliographic Details
Published in:Procedia manufacturing 2019, Vol.37, p.549-554
Main Authors: Xu, Qian, Zhou, Jianxin, Li, Wen, Nan, Hai, Qie, Xiwang, Feng, Xin, Yin, Yajun, Shen, Xu
Format: Article
Language:English
Subjects:
Crystal plasticity finite element
Mechanical behavior
Polystalline alloy
Single crystal
Uniaxial compression
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Summary:Microstructure has great influences on the mechanical properties. In this paper, the rate-dependent constitutive model has been developed and implemented by user-defined material subroutine. A series of simulations have been done to test the subroutine. Cu single crystal (with FCC crystal structure) have been simulated under uniaxial compression process. Four slip systems have been activated which agrees well with the experiment results. Polycrystalline Mg alloy (with HCP crystal structure) has been simulated under uniaxial compression process with different strain rates. And results show that with the increasing strain rates, the stress increases, which agrees well with the experiment results. And different element types have been tested, however, no obvious difference in stress-strain curves has been found in this simulation.
ISSN:2351-9789
2351-9789
DOI:10.1016/j.promfg.2019.12.087