Contact strength in ANSYS Workbench

AI Thread Summary
The discussion focuses on modeling contact between bricks and mortar in ANSYS Workbench, specifically addressing the failure due to loss of adhesion. The user plans to implement "Bonded contact" and "Contact Debonding" with "Cohesive zone material" properties, using experimentally determined maximum normal and shear stresses. They set the "Contact Gap" and "Tangential Slip" to 0.001 mm to maintain nondeformable contact. However, they encountered issues with the contact not debonding under applied shear force during testing. The conversation includes inquiries about the user's progress and shared challenges in simulating similar contact behavior.
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.
 

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