Hej,
I am working with a PTFE piece which I applied certain boundary loads. I have modeled it assuming a LEM behavior. Everything fine.
Now I want to increase the accuracy of the results using a Non Linear Elastic Material.
PTFE shows visco-plasticity: hardening, creep, ... may be even anisotropy. Is Elmer suitable for this application? I did not see anything related in the Elmer documentation.
Someone has faced this problem before?
Thanks in advance
Modeling PTFE: Viscoplastic (Non-LEM)
Re: Modeling PTFE: Viscoplastic (Non-LEM)
I don't have much experience using non-linear materials in FEA in general, but I'm also interested in the possibilities using PTFE and elastomer materials with the Elmer solver.
Would it be possible to use the Navier-Stokes equitions with very high viscosities to simulate creep ... ? (just an idea)
Would it be possible to use the Navier-Stokes equitions with very high viscosities to simulate creep ... ? (just an idea)
Re: Modeling PTFE: Viscoplastic (Non-LEM)
Hi All,
Is it the non-linearity of the equation that has caused difficulty in implementing Non-linear Elastic Mechanics and Viscoplastic models in Elmer? Or, any other reasons?
A relevant post is as in this following link.
Yours Sincerely
Anil Kunwar
Is it the non-linearity of the equation that has caused difficulty in implementing Non-linear Elastic Mechanics and Viscoplastic models in Elmer? Or, any other reasons?
A relevant post is as in this following link.
Yours Sincerely
Anil Kunwar
Anil Kunwar
Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice
Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice