Dear all,
I have to model three point beam bending test on asphalt concrete beam with geosynthetic interface layer at 2/3rd depth from the top(using abaqus 6.12-3). I have modeled three parts separately i.e.. asphalt, geosynthetic material and cohesive elements(to define interface). When I give the crack region for XFEM crack, there is an error showing that crack region should contain only one instance. Can someone suggest me how to move further in this problem.. Suggestion would be really helpful. Thanks in advance.
Regards
Prashanthi
The material properties are assigned to the background cells or elements. The enrichment is happening only to the nodes of the elements which have the cracks. The overall dofs are not affected. But the sparisity of stiffness matrix is affected there by there are some instabilities in the solution. However these can be over come by some conditioning techniques of the stiffness matrix
May be the crack in multi layered materials is not supported. Try to use a small crack region in order to reach one part of the beam only.
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