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Description
Anisotropic damage models are required to fulfill the damage growth criterion and to yield mesh-independent results in structural simulations. The former can be achieved by a proper design of the elastic free energy and the latter by a suitable regularization, e.g. by a gradient-extension. Here, we compare the performance of different elastic strain energy formulations for anisotropic damage at finite strains from [1] and [2] on a structural level. For the models’ regularization, we utilize identical micromorphic gradient-extensions.
[1] van der Velden, T., Brepols, T., Reese, S., Holthusen, H., 2024. A comparative study of micromorphic gradient-extensions for anisotropic damage at finite strains. Int. J. Numer. Methods Eng. 125(24), e7580.
[2] van der Velden, T., Reese, S., Holthusen, H., Brepols, T., 2024. An anisotropic, brittle damage model for finite strains with a generic damage tensor regularization. arXiv, 2408.06140.
