A mixed variational formulation with discontinuous displacements and continuous tractions is proposed for the analysis of cohesive-crack propagation in elastic media. Such a formulation gives rise to a peculiar finite-element discretization scheme that is based on the Johnson-Mercier composite elements as to the stresses. Numerical results concerning classical benchmark problems are proposed and need for future developments highlighted, including the analysis of elastic-plastic and incompressible media.

A mixed approach to cohesive crack propagation

BRUGGI, MATTEO;
2005

Abstract

A mixed variational formulation with discontinuous displacements and continuous tractions is proposed for the analysis of cohesive-crack propagation in elastic media. Such a formulation gives rise to a peculiar finite-element discretization scheme that is based on the Johnson-Mercier composite elements as to the stresses. Numerical results concerning classical benchmark problems are proposed and need for future developments highlighted, including the analysis of elastic-plastic and incompressible media.
11th International Conference on Fracture 2005, ICF11
9781617820632
9781617820632
Geotechnical Engineering and Engineering Geology
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/994847
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