Numerical Computation of Anisotropically Evolving Yield Surfaces Based on Micro to Macro Transitions

Date

2004-03-26

Author

Birkle, Manuel
Gürses, Ercan
Miehe, Christian

Metadata

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The paper proposes a numerical computation technique for anisotropically evolving yield surfaces based on micro–to–macro transitions. The underlying model of the finite crystal plasticity and the homogenization approach have previously been formulated by Miehe et al. [2]. The technique proposed has the following two central aspects, firstly a criterion for the determination of the macroscopic yield point is introduced which is based on the physically relevant mechanisms on the microscale and secondly, as a key point of the methodology, total unloading is applied to the representative volume element (RVE) before the yield surface for the corresponding microstructure is determined. The explained method is applied to a Taylor type polycrystalline material model. With respect to the validation of the proposed concept different tests are performed for various preloading conditions and comparisons with experimental findings are provided. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

URI

http://onlinelibrary.wiley.com/doi/10.1002/pamm.200410091/epdf
https://hdl.handle.net/11511/82554
https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.200410091

DOI

https://doi.org/10.1002/pamm.200410091/epdf

Conference Name

75th Annual Meeting of Gesellschaft für Angewandte Mathematik und Mechanik (GAMM), (21 - 26 Mart 2004)

Collections

Department of Aerospace Engineering, Conference / Seminar

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Citation Formats

M. Birkle, E. Gürses, and C. Miehe, “Numerical Computation of Anisotropically Evolving Yield Surfaces Based on Micro to Macro Transitions,” Dresden, Almanya, 2004, vol. 4, p. 219, Accessed: 00, 2021. [Online]. Available: http://onlinelibrary.wiley.com/doi/10.1002/pamm.200410091/epdf.