Plastic anisotropy induced by strain path changes in BCC metals

Yalçınkaya, Tuncay
Geers, M G D


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Undoubtedly, a world without plastic, which is the most important production material in almost every area, seems inconceivable today. The production and consumption chain, by which induced this versatile use, has caused plastic pollution that has devastating effects on the environment and natural ecosystems. In this thesis, which written with the motivation of contributing to the fight against plastic pollution and to be useful developing effective and sustainable policies, plastic pollution and pollutant ...
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Plastic deformation induces various types of dislocation microstructures at different length scales, which eventually results in a heterogeneous deformation field in metallic materials. Development of such structures manifests themselves as macroscopic hardening/softening response and plastic anisotropy during strain path changes, which is often observed during forming processes. In this paper we present two different non-local plasticity models based on non-convex potentials to simulate the intrinsic rate-...
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The mechanical response of many engineering materials is often influenced by an existing or emerging microstructure (martensite, dislocation sub-structures, voids, shear bands etc.). There have been various approaches to model the formation and evolution of such microstructures which involve coupled models. The difficulty in the modeling of these multi-field coupled problems is the localization of the corresponding field and strain hardening-softening elastoplastic behavior which yields numerical instabilit...
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Citation Formats
T. Yalçınkaya and M. G. D. Geers, “Plastic anisotropy induced by strain path changes in BCC metals,” 2008, Accessed: 00, 2021. [Online]. Available: