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Viscoplastic constitutive models for zero-thickness interface elements, formulation and applications
Abstract
An energy-based work-softening visco-plastic model for zero-thickness interface elements has been developed as an extension of an existing elastic-perfectly-viscoplastic formulation. In the inviscid limit the model also collapses into a well-established fracture mechanics-based elasto-plastic model. The new model is verified satisfactorily for common loading cases at interfaces such as pure tension (mode I) opening, and shear-compression (mixed-mode) sliding, with results that in the long term match the predictions of the fracture mechanics inviscid model- Conference report
- Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
- Finite element method
- Plasticity -- Mathematical models
- Viscoplasticity, Interface elements, Finite Element Method (FEM), Viscoplastic relaxation
- Elements finits, Mètode dels
- Plasticitat -- Models matemàtics
- Plasticitat