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- W2570295260 endingPage "295" @default.
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- W2570295260 abstract "A non-local gradient-enhanced damage-plasticity formulation is proposed, which prevents the loss of well-posedness of the governing field equations in the post-critical damage regime. The non-locality of the formulation then manifests itself in terms of a non-local free energy contribution that penalizes the occurrence of damage gradients. A second penalty term is introduced to force the global damage field to coincide with the internal damage state variable at the Gauss point level. An enforcement of Karush–Kuhn–Tucker conditions on the global level can thus be avoided and classical local damage models may directly be incorporated and equipped with a non-local gradient enhancement. An important part of the present work is to investigate the efficiency and robustness of different algorithmic schemes to locally enforce the Karush–Kuhn–Tucker conditions in the multi-surface damage-plasticity setting. Response simulations for representative inhomogeneous boundary value problems are studied to assess the effectiveness of the gradient enhancement regarding stability and mesh objectivity." @default.
- W2570295260 created "2017-01-13" @default.
- W2570295260 creator A5024043531 @default.
- W2570295260 creator A5038661633 @default.
- W2570295260 creator A5042802258 @default.
- W2570295260 creator A5060103653 @default.
- W2570295260 date "2017-01-05" @default.
- W2570295260 modified "2023-10-10" @default.
- W2570295260 title "A gradient-enhanced damage model coupled to plasticity—multi-surface formulation and algorithmic concepts" @default.
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