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Cohesive material zone model and ABAQUS subroutines


I'd like to ask if anybody knows if it is possible to use an ABAQUS usersubroutine that could vary some parameters (τmax, kn or ks etc) of the cohesive zone model of ABAQUS with the vertical pressure applied on the interface. The new ability of ABAQUS to support cohesive behaviour in contact surfaces seems very interesting and useful, however how could somebody simulate the interface under a compression - shear regime that may follow a Mohr-Coulomb type behaviour?

I tried to use the subroutine USDFLD. However I realised that it cannot be used with contact parameters as internal variables. Does anybody have any particular idea on this?


Thank you in advance



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