Anisotropic plasticity‐damage material model for sheet metal — Regularised single surface formulation

J. Friedlein, J. Mergheim, P. Steinmann, PAMM 21 (2021).

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Journal Article | English
Author
Friedlein, J.; Mergheim, J.; Steinmann, P.
Abstract
Sheet metal forming as well as mechanical joining demand increasingly accurate and efficient material modelling to capture large deformations, the inherent sheet orthotropy and even process-induced damage, which is expected to be influential. To account for large strains the additive logarithmic strain space is utilised that enables a straightforward incorporation of plastic anisotropy, herein modelled by a Hill48 yield function. A gradient-enhancement is used to equip the ductile damage model with an internal length scale curing the damage-induced localisation. An affine combination of the local and non-local softening variable is derived enabling a more efficient single surface formulation for the regularised plasticity-damage material model.
Publishing Year
Journal Title
PAMM
Volume
21
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Friedlein J, Mergheim J, Steinmann P. Anisotropic plasticity‐damage material model for sheet metal — Regularised single surface formulation. PAMM. 2021;21. doi:10.1002/pamm.202100068
Friedlein, J., Mergheim, J., & Steinmann, P. (2021). Anisotropic plasticity‐damage material model for sheet metal — Regularised single surface formulation. PAMM, 21. https://doi.org/10.1002/pamm.202100068
@article{Friedlein_Mergheim_Steinmann_2021, title={Anisotropic plasticity‐damage material model for sheet metal — Regularised single surface formulation}, volume={21}, DOI={10.1002/pamm.202100068}, journal={PAMM}, author={Friedlein, J. and Mergheim, J. and Steinmann, P.}, year={2021} }
Friedlein, J., J. Mergheim, and P. Steinmann. “Anisotropic Plasticity‐damage Material Model for Sheet Metal — Regularised Single Surface Formulation.” PAMM 21 (2021). https://doi.org/10.1002/pamm.202100068.
J. Friedlein, J. Mergheim, and P. Steinmann, “Anisotropic plasticity‐damage material model for sheet metal — Regularised single surface formulation,” PAMM, vol. 21, 2021, doi: 10.1002/pamm.202100068.
Friedlein, J., et al. “Anisotropic Plasticity‐damage Material Model for Sheet Metal — Regularised Single Surface Formulation.” PAMM, vol. 21, 2021, doi:10.1002/pamm.202100068.

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