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Crack Length in Cohesive Elements

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Posts: 16
Topic starter
(@ross88online)
Active Member
Joined: 13 years ago

Hi,

I have a DCB (sandwitch specimen) with cohesive elements placed at the interface. I have defined a UEL in ABAQUS to simulate the cohesive behavior. Studying pure Mode I case, displacement is applied at the end of the DCB. Cohesive element works great (it fails when one reaches max separations). But I am having a difficulity in extracting the crack length (i.e. length of failed cohesive element) vs time step. Could you please kindly guide me in this regards?

The only thing I could find online was a comment that advised to define a node or element path along the interface and use the *Element Output command. However, I dont know what to put as the output variable in the *Element Output command.

Please help!

Thank you,

Roshanak

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