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ABAQUS XFEM Concrete crack propagation Damage Criteria. ANY HELP APPRECIATED

Submitted by sithlord382 on

Hi,

I am fairly new to Abaqus and trying to simulate crack propagation in a concrete 3D cube where I have used Matthew Pais' 3d edge crack model as guidance. However i want to use concrete as the material for the simulation and i have searched the net and am having trouble finding any reliable values for the damage criteria. Please could anyone assist me with this problem. As far as i know i need to find values for the Mass Density, Young's Modulus, Poisons ratio, Max principal stress and Damage evolution? is that right or are there other things i should be including when creating the material.

Also another query that i have is, following matthew pais model, how can i get the crack to propagate further than the length of the shell 'crack' part i created. At the moment i have placed the shell crack part on the edge of 1 surface of my cube and it has a length of 2, when i run the job (using material properties for aluminium) the crack only opens until the length 2. It does not propagate any further no matter how much i increase the tensile load being applied to the cube. Is there any way around that?

Thanks in advance and would appreciate any help available.