Contact strength in ANSYS Workbench

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Jiri Fila
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Hello,
I want to model in Ansys Workbench contact between bricks and mortar. From experiments I know maximum normal stress and maximum shear stress. Respectively I know forces in which the contact fails. The failure is brittle due to lost of adhesion.
I tried to use "Bonded contact" and "Contact Debonding" with "Cohesive zone material" properties (see pic. bellow). For "Maximum Normal Contact Stress" I will use maximum normal stress calcutated from maximum force measured during experiments. For "Maximum Equivalent Tangential Contact Stress" I will use maximum shear stress calcutated from maximum force measured during experiments. "Contact Gap" and "Tangential Slip" I choose as 0,001 mm because I want contact nondeformable.
Can anyone tell me, if my idea is correct? When I tried to test it, contact in Mode II (with applied shear force) did not debonded at supposed applied force.
Thank you in advance for any help.
 

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Hi Jiri Fila, I would like to ask did you solve the problem or still working on it? I am also trying to simulate some similar contact behavior in ansys workbench.
 
Unfortunately, not yet.