Reaction forces not matching with Test results

[Bruce321]

Hello,

I am analysing a 3D D shaped Incompressible Neo hookean material in contact with a semi cylinder using Ansys 14.5 APDL. The input values provided are C10=2737674.313898 and mass of D shape geometry to be 8 kg/m. I have converted these values into density and Shear Modulus as required in Ansys 14.5. I want the D shape to deform by 30mm. I have cut down the dimensions using symmetry to reduce the computational costs. The original model was 100 mm x 100 mm x 400 mm. Now it is 50 mm x 100 mm x 100 mm I am able to solve it but the reaction forces are not anywhere close to the experimental value (586N v/s 6KN). Could anyone please look into the code and tell me where I am going wrong

Please provide with your inputs as soon as possible. The Input file is attached for your reference.

Thanks in advance

Regards,
Bruce

 

[Achy47]

Hello Bruce,

Thank you for sharing your project and asking for input. From the information provided, it seems like you have made a good effort in setting up your simulation. However, there are a few areas that may be causing the discrepancy in your results.

Firstly, it is important to check the units of your input values. The values for C10 and mass seem to be quite large, which may indicate that they are not in the correct units for Ansys. Please double check and make sure they are in the appropriate units (e.g. N/m^2 for C10 and kg for mass).

Additionally, it is important to consider the boundary conditions and constraints you have applied in your simulation. These can greatly affect the results, so make sure they are accurately representing the real-life scenario.

Another factor to consider is the meshing of your model. Make sure the elements are properly defined and that the mesh is fine enough to capture the deformations accurately.

Lastly, it is important to verify the material properties you have used for your simulation. Make sure they are accurate and representative of the real material.

I hope these suggestions help in identifying and resolving the issue with your simulation. If you continue to experience difficulties, I would recommend consulting with a colleague or reaching out to Ansys support for further assistance.

Best of luck with your project.