期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2018.12.028
关键词
Polycrystal plasticity; Latent hardening; OFHC copper; Affine model; Taylor model
类别
资金
- National Natural Science Foundation of China [51601218]
- Natural Science Foundation of Jiangsu Province [BK20160235]
- Fundamental Research Funds for the Central Universities [2015XKZD02]
- Shanghai Pujiang Program [18PJ1405000]
- Natural Sciences and Engineering Research Council of Canada (NSERC)
Two mean-field crystal plasticity models of the Taylor model and the Affine model have been employed to study the large strain behaviors of OFHC copper under uniaxial compression, uniaxial tension, plane strain compression, simple shear and fixed-end thin-walled tubular torsion. The effect of latent-hardening on the predictability of the models is assessed through comparing the simulated results with the corresponding experiments. Both the stress strain curves at macroscale and the deformed textures associated with microscopic deformation mechanisms are investigated. From the assessment, Affine model with isotropic latent hardening effect gives the overall best performance among all the models and latent hardening factors examined.
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