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Global and local partitioning of energy release rates in FEM simulation of FRMM test using cohesive zone

Finite element simulations of a fixed-ratio mode-mixity test (single configuration) are performed using cohesive zone model. Different simulation parameters are varied: automatic stabilisation, cohesive element viscosity and mesh size. A global and local approach are presented and used for calculation of energy release rate contribution from mode I and mode II fracture in the simulations. The simulations and fracture energy calculation results are evaluated and compared, leading to recommendation for the parameter selection in the finite-element simulation of similar problems.

mixed-mode fracture, numerical simulation, FRMM test

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