dynamic problem of rubber in Finite Element analysis
dynamic problem of rubber in Finite Element analysis
(OP)
Hi,
I am trying to do a FEA for dynamic stiffness of rubber.My model object is a bushing under a cyclic load with a specified frequency,and the material damp is been considered,but I couldn't get the hysteresis loop.why?
Thanks.
I am trying to do a FEA for dynamic stiffness of rubber.My model object is a bushing under a cyclic load with a specified frequency,and the material damp is been considered,but I couldn't get the hysteresis loop.why?
Thanks.





RE: dynamic problem of rubber in Finite Element analysis
RE: dynamic problem of rubber in Finite Element analysis
I have got the hysteresis loop by testing,but not with Finite Element Analysis in the computer.I did the simulation by ANSYS,and defined damp to extremely large,and strain is also not small,and the results are not linear with a very small circuitous curve.I couldn't explain it.Of course I will try other means,any new progress I would tell you.
Candy
RE: dynamic problem of rubber in Finite Element analysis
RE: dynamic problem of rubber in Finite Element analysis
RE: dynamic problem of rubber in Finite Element analysis
Same advice I gave earlier- you need to find people who can really help with the testing and the right FEA program once you have real data. Good luck.
R J Del Vecchio
Technical Consulting Services
(consultant in Applied Rubber Technology)