Contact between a rigid body and a deformable plate
Contact between a rigid body and a deformable plate
(OP)
Hi everyone,
I'm trying to do a contact simulation between a rigid body and a deformable plate. I used contact pair interaction. The job failed in the middle. I checked the .odb file, the plate didn't deform a lot, while the mesh changed a lot (I'm not sure if it's correct to describe it like this). And the temperature result seems to be too high (I don't know if it's caused by the weird mesh change). Can someone please take a look at my files and give me some tips? Thank you very much!
I'm trying to do a contact simulation between a rigid body and a deformable plate. I used contact pair interaction. The job failed in the middle. I checked the .odb file, the plate didn't deform a lot, while the mesh changed a lot (I'm not sure if it's correct to describe it like this). And the temperature result seems to be too high (I don't know if it's caused by the weird mesh change). Can someone please take a look at my files and give me some tips? Thank you very much!





RE: Contact between a rigid body and a deformable plate
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RE: Contact between a rigid body and a deformable plate
So now I have followed the suggestion to change the kinematic contact to the penalty contact. There was no error happened during the simulation. However, the weird mesh change thing (I captured the original mesh and the after simulation one) is still there. I really don't know why this happened. It's very helpful and appreciated if someone give me some tips.
https://www.dropbox.com/s/1soa13m53ivor8s/original...
https://www.dropbox.com/s/w5bm2y6p6lesnb3/mesh%20a...
RE: Contact between a rigid body and a deformable plate
RE: Contact between a rigid body and a deformable plate
Think about it. You are asking some nodes to do two separate things at the same time.
Are you new to this forum? If so, please read these FAQ:
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083
RE: Contact between a rigid body and a deformable plate
RE: Contact between a rigid body and a deformable plate
1. Uploading CAE causes troubles; always upload your input file. I couldn't see anything because I have an older CAE version.
2. I don't understand how/why you'd mesh a regular block in such an odd way. If you need to create higher density mesh closer to the rigid
3. The results are junk because your artificial strain energy (ALLAE) is more than strain energy (ALLSE) for the model; it should be very small when compared with ALLSE and other "real" energies. Along similar lines, your ETOTAL should be close to a constant; its not.
4. You don't need to create deformable elements and then a rigid body constraint. You can create a rigid body directly.
Bottomline: You need to study your model carefully.
Are you new to this forum? If so, please read these FAQ:
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083