A comparative study between micro- and macro-mechanical constitutive models developed for complex loading scenarios
SCIE
SCOPUS
- Title
- A comparative study between micro- and macro-mechanical constitutive models developed for complex loading scenarios
- Authors
- Jeong, Y.; Barlat, F.; Tom?, C.N.; Wen, W.
- Date Issued
- 2017-06
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- Constitutive models developed for simulating plastic response upon strain path changes are combined: 1) a macro-mechanical model based on anisotropic yield function, associated flow rule and distortional hardening using Homogeneous Anisotropic Hardening (HAH) approach; 2) a micro-mechanical model using self-consistent crystal plasticity in conjunction with crystallographic dislocation-density based hardening. The micro-mechanical model is employed to probe the yield surface in order to gain the insight required to construct empirical rules appropriate for the macro-mechanical model. Simulation results of the micro-mechanical model under various loading conditions involving strain path changes and different crystallographic textures are presented. The trends captured in the yield surface evolution predicted by the micro-mechanical model were used to validate and improve the empirical rules used in the HAH model. ? 2016 Elsevier Ltd.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/50642
- DOI
- 10.1016/j.ijplas.2016.07.015
- ISSN
- 0749-6419
- Article Type
- Article
- Citation
- INTERNATIONAL JOURNAL OF PLASTICITY, vol. 93, page. 212 - 228, 2017-06
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