Dear Abaqus Community,

I am attempting to reproduce a hyperelastic compression analysis described in a published paper.

I have implemented the same hyperelastic material model and general setup. However, the resulting stress distributions in my simulation are slightly different from those reported in the paper.

The Specific Problem: Asymmetry

• The mesh, both in the paper's model and mine, is symmetrical.
• Despite this symmetry, the paper shows a clear asymmetry in the vertical stress distribution.
• The authors attribute this asymmetry to friction between the rigid and deformable parts.
• My Issue: Regardless of the updates and adjustments I make to the model, I cannot reproduce this critical asymmetric stress distribution.

Current Model Setup

I am currently using the following contact parameters:

• Interaction Type: Surface-to-Surface Contact.
• Tangential Behavior: Defined with a Friction Coefficient of 0.1.
• Normal Behavior: Defined to allow separation after contact.

Does anyone have insight into what might be causing my inability to regenerate this friction-induced asymmetry?

Thank you in advance for your expertise.

Best regards,

Here is the paper's result:

Here is my result: