An improved interface cohesive zone model is developed for the simulation of inter-face contact,under mixed-mode loading.A new debonding initiation criterion and propagation of debonding law,taking into account the pressure stress influence on contact shear strength,is proposed.The model is implemented in a finite-element program using subroutine VUINTER of ABA QUS Explicit.An edge-notch four-point bending process and laminated vibration damping steel sheet punch forming test are simulated with the improved model in ABAQUS Explicit.The numerical predictions agree satisfactorily with the corresponding experimental results.
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