Learning Forum

[Hussain Mithi]

I've got a hyperelastic material (Ogden 3rd Order as well as Neo Hookean) that I wanna run mechanical and FSI simulations with. I cannot get hyperelastic materials to work in Ansys. I've tried adding coefficients of my own, as well as extracting coefficients from the sample data present. What am I doing wrong? I get excessive distortion errors.

[Avnish Pandey]

Hi Hussain,

You may go through the training materials, videos and forum discusions that cover various concepts and troubleshooting tips for hyper-elastic nonlinear analysis features.

https://innovationspace.ansys.com/product/topics-in-hyperelastic-material-model/

This video specially focus on convergence issue troubleshooting

https://www.youtube.com/watch?v=XCvOyyRJ8rA

Other generic hyper-elastic learning materials

https://www.youtube.com/watch?reload=9&v=TUDbDt1lbLk

https://www.youtube.com/watch?v=uNHmQw73COk

https://www.youtube.com/watch?v=WFYOJ7oBCSk

Forum discussions:

/forum/forums/topic/convergence-issues-in-hyperelastic-material-non-linear-structural-analysis/

/forum/forums/topic/hyperelastic-simulation-settings/

/forum/forums/topic/hyperelastic-simulation-does-not-run-due-to-element-distortion/

/forum/forums/topic/modeling-hyperelastics/

You can find many such forum discussions and see if they help you.

-Best