Learning Forum

[learn13]

I'm having difficulty finding material definitions fitting a viscoelastic foam within ansys or within the many online resources.

Using Prony seems an absolute must, however I do not have data to input in order to model viscoelasticity. Ideally, modifying structural steel NL would serve as a great start.

 

Thank you.

[Keyur Kanade]

It looks like question on ANSYS. Should I move this to Structural Mechanics so that you would get better reply. 

Regards,

Keyur

[learn13]

Great suggestion! If you think it will help, I would appreciate it.

[Keyur Kanade]

Ok. Then I am moving this to Structural Mechanics category. 

 

Regards,

Keyur

[Sandeep Medikonda]

Hi, 

I would recommend you to axelproducts or datapointlabs for material data.

Yes, you would need to fit the data using prony-series parameters.

You might want to fit your data to a hyper-elastic material model such as Ogden 3rd or 4th order first? Structural Steel behavior is no way close to how a foam material would behave. One of the biggest challenges in capturing Foam materials is to account for the incompressibility.

For just hyper-elastic data we have a group of materials you can start with in Engineering Data Sources itself.

Regards,
Sandeep
Best Practices to post on the Student Community

[Ashish Khemka]

You may also refer to one of good article here:

 

http://ansys.net/collection/1113

 

Regards,

Ashish Khemka