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New Member
sagarbodkhe
Posts: 1
Registered: ‎01-20-2013

Pass through problem in MES impact analysis

231 Views, 2 Replies
01-20-2013 05:35 AM

 i have been trying to perform crash analysis of rollcage frame. Element i used was beam element with pipe cross section. i gave an initial velocity to the part(complete frame). but i found that frame passed through the impact plane.

 

can anyone help me over this?

 

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Distinguished Contributor
ilyas
Posts: 139
Registered: ‎06-13-2012

Re: Pass through problem in MES impact analysis

01-20-2013 09:28 PM in reply to: sagarbodkhe

Hi, how is the time step configured? If the time step is too large, then it will skip the moment when the part contacts the impact plane. If the time step if small enough but the part still shows unacceptably large penetration, it could be that the contact stiffness is a bit small for the analysis. Change it to user-defined inside Setup>Contacts>Impact Planes>Settings.

 

Regards

Ilyas

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Employee
zhuangs
Posts: 210
Registered: ‎10-04-2010

Re: Pass through problem in MES impact analysis

01-29-2013 12:11 PM in reply to: sagarbodkhe

Does the model has deformation or stress resulting from the impact?  If not, try to reduce time step size.

 

-Shoubing

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