Defining Constitutive Response in Terms of Traction-Separation Laws
To define the constitutive response of the cohesive element directly in terms of traction versus separation, you choose a traction-separation response when defining the section behavior of the cohesive elements.
Input File Usage
COHESIVE SECTION, RESPONSE=TRACTION SEPARATION
Abaqus/CAE Usage
Property module: Create Section: select Other as the section Category and Cohesive as the section Type: Response: Traction Separation