×

Notice

The forum is in read only mode.

Error in Solving 3d Contact

  • Youssef
  • Youssef's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
10 years 9 months ago - 10 years 9 months ago #7578 by Youssef
Error in Solving 3d Contact was created by Youssef
Hi ,

I'm new in the forum and I would like to learn more about Code_Aster and Salome. I did some online tutorials to get used to the software before. But I have some problems with the resolution of contact in Salome meca . I use the latest version of LiveDVD .

My modeling include 6 contacts and a pressure applied on one side. I wanted to extract the contact pressures for improving mechanism. It is an elastic problem modeled in 3d and resolved with the command STAT_NON_LINE
Before anything else, I read the documentation on the contact record [ U2.04.04 ]. I used the CONTINUE method because I want to extract the contact pressure with LAGS_C. After many test , my problem didn't converge, so I followed the notice advice and have used a PREDICTION: ELASTIC and now it convergence but I still have a problem.

I hope someone can help me and tell me where I made ​​mistakes.
.Comm and .med files are attached to this thread

Still student in mechnical engineering
Last edit: 10 years 9 months ago by Youssef.
  • Youssef
  • Youssef's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
10 years 9 months ago - 10 years 9 months ago #7579 by Youssef
Replied by Youssef on topic Re: Error in Solving 3d Contact
I got some problems with uploading files
Here the files:
.comm: Contact_V2
.med: Contact_V2

Thanks you in advance for your help

Still student in mechnical engineering
Last edit: 10 years 9 months ago by Youssef.
More
10 years 9 months ago #7582 by Claus
Replied by Claus on topic Re: Error in Solving 3d Contact
What is your current problem? Please post .mess file

/C

Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
  • Youssef
  • Youssef's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
10 years 9 months ago #7589 by Youssef
Replied by Youssef on topic Error in Solving 3d Contact

claws wrote: What is your current problem? Please post .mess file

/C

I made some changes to the .comm file , but I've always some problems resolution. Mess file is visible by following the link below:
Contact_V2

Thanks for your response

Still student in mechnical engineering
More
10 years 9 months ago #7593 by Claus
Replied by Claus on topic Re: Error in Solving 3d Contact
I don't have time to get too much into right now, but try searching for 'flip flop' + code_aster

www.google.com/search?q=code_aster+flip+flop

You simulation does just that when trying to reach convergence.

/C

Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
  • Youssef
  • Youssef's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
10 years 9 months ago #7594 by Youssef
Replied by Youssef on topic Error in Solving 3d Contact
Thank you for your answer,

I saw some examples with "flip-flop" problem on the net but I think my problem is different. It's not mentionned in the .mess file that the simulation doesn't converge as we can see. Some nodes cause problem so I tried to exclude them to the contact but the probelm remains.

Hope I can find solution

Still student in mechnical engineering
Moderators: catux
Time to create page: 0.131 seconds
Powered by Kunena Forum