Multi Scale Modeling of Microstructure Evolution Induced Anisotropy in Metals

Date

2013-06-01

Author

Yalçınkaya, Tuncay

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This paper presents two crystal plasticity based computational constitutive models for the intrinsic formation of plastic microstructure during monotonic loading and its altered evolution under strain path changes in metal forming operations. The formation step is modeled via a non-convex strain gradient crystal plasticity framework which could simulate the intrinsic development of the plastic microstructures. The evolution under strain path changes is modeled via phenomenologically based constitutive equations incorporated into crystal plasticity framework. The latter is capable of simulating the transient anisotropy effects (e.g. cross hardening, Bauschinger effect) depending on the change in the strain path. The paper discusses the unification of such models for the continuous modeling of microstructure formation and evolution processes.

Subject Keywords

Crystal plasticity, Strain path change, Patterning, Microstructure, Plastic anisotropy

URI

https://hdl.handle.net/11511/36749

Journal

Key Engineering Materials

DOI

https://doi.org/10.4028/www.scientific.net/kem.554-557.2388

Collections

Department of Aerospace Engineering, Article

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Citation Formats

T. Yalçınkaya, “Multi Scale Modeling of Microstructure Evolution Induced Anisotropy in Metals,” Key Engineering Materials, pp. 2388–2399, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36749.