Learning Forum

[pranesh]

I want to analyse a rubberised wheel(rim portion is made of  aluminium) in transient condition.I just tried randomly but it is not solving and showing error.But i am facing no issues with static analysis.Can anyone please tell me if what i have done is correct.If not where to rectify and how to do in such case.

1) It is showing that the error occurs in Rubber portion (Note: I have selected rubber-2 material available in ansys material library).

2) I have given bonded contact.Even in such case it is not running in transient.Actually  i think frictional contact needs to be given.How should i proceed?. (fixed support provided at wheel rims)

3) I need to apply 7000 N.How should i do it.I am asking regarding how to give step size,no of steps etc.Pictures are being uploaded for your reference.In force i have given as tabular column in 7 steps(each step of 1000 N)

4) Is the rubber meshing ok or should i improve.Should i go for quads if i wish to improve the mesh or pls tell me any other methods by

which it could be improved

Eagerly waiting for your guidance.

 

[Sandeep Medikonda]

Element distortion messages are usually severe problems due to excessive loading.

• Review Newton Raphson Residuals and Post Process the available results


• Modify the mesh so that it can anticipate the future deformation


• Apply the load incrementally using substeps, decrease further than what you had.


• Check force convergence, Keep an eye on the max. strain and see how that strain corresponds to your material curve.


• Is the force residue at contacts?

Please see this post and the subsequent links.

Zack's discussions, in particular, might be quite helpful.