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Title:

The Discontinuous Strain Method: accurately representing fatigue and failure

Document type:
Zeitschriftenaufsatz
Author(s):
Herrmann L., Daneshyar A., Kollmannsberger, S.
Abstract:
Fatigue simulation requires accurate modeling of unloading and reloading. However, classical ductile damage models treat deformations after complete failure as irrecoverable --- which leads to unphysical behavior during unloading. This unphysical behavior stems from the continued accumulation of plastic strains after failure, resulting in an incorrect stress state at crack closure. As a remedy, we introduce a discontinuity strain in the additive elasto-plastic strain decomposition, which absorbs...     »
Keywords:
Plasticity, Fatigue, Fracture, Finite Element Method
Journal title:
Computational Mechanics
Year:
2024
Year / month:
2024-01
Quarter:
1. Quartal
Reviewed:
ja
Fulltext / DOI:
doi:10.48550/arXiv.2312.00564
Status:
Preprint / submitted
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