Decohesion Elements using Two and Three-Parameter Mixed-Mode Criteria

By C. Dávila, Pedro P. Camanho. Proceedings of the Structures Technical Meeting - Williamsburg, Virginia 2001, 2001

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An 8-node decohesion element implementing different criteria to predict delamination growth under mixed-mode loading is proposed. The element is used at the interface between solid finite elements to model the initiation and propagation of delamination. A single displacement-based damage parameter is used in a softening law to track the damage state of the interface. The power law criterion and a three-parameter mixed-mode criterion are used to predict delamination growth. The accuracy of the predictions is evaluated in single mode delamination and in the mixedmode bending tests.

Subfields: Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/88761043c3eb5abdb08e0d7a6a94cf1117f90860