I am trying to validate the fracture energy supplied with the area under traction-separation curve. the traction that i have considered is the principal normal stress in y direction. But i am getting large deviation between both the results.
Eagerly waiting for a reply.
For what type of material and application you are using this calculation ?
Willy Ank Morais thanks for the response.
i am putting a 2D cohesive layer and tied it with two steel shell element. for cohesive layer i have taken some random stiffness values as well as maxs damage for traction separation law. the fracture energy supplied is 25000.
sir, my query is " is not the fracture energy supplied should be equal to the area under the traction( nominal stress in y direction) and separation (Y direction displacement) curve! . the area under traction- separation curve is around 76000 whereas the fracture energy input is 25000.
more interestingly after changing my fracture energy input to 2500 also i am getting T-S behavior remain unchanged.
waiting for your reply.
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