To model adhesives, interfaces in composite
materials or crack propagation, it is possible to create cohesive
elements.
A geometry with highlighted surface indicating location for
cohesive elements
The above example has a shared surface between the green and
yellow volumes which is already cracked, using the unmerge
command in Cubit. The highlighted merged surface can then used
for creating cohesive elements. The following command will do so.
Create Cohesive Elements Block <value>
Surface <ids>
The Block keyword
indicates the block id for the newly created block.
The Surface keyword
indicates which surfaces to unmerge and insert cohesive
elements..