Non-Linear Static Analysis
Hello, It gives some errors in a model I created; 3D mesh quality gives errors in bolts, pins and bushings. There is 100% error rate for LENGTH. I am sharing the model in the attachment, I would be very happy if you could help.
Best Answer
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Usually this is related to contact issues or parts not properly connected.
Your .out file shows us that there are large Average Displacements, so a part of your model is probably flying away.
Try running your model with the control card PARAM,EXPERTNL,CNTSTB to add some numerical stabilization to your contacts.
Additionally, try reducing a little bit the initial increment, by settting a small DT value inside your NLPARM card (i.e. 0.01).
There are a few tips in this post as well:
https://community.altair.com/community?id=community_blog&sys_id=538764ab1b3790d4a5f742eddc4bcba4
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Altair EmployeeAnswers
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Usually this is related to contact issues or parts not properly connected.
Your .out file shows us that there are large Average Displacements, so a part of your model is probably flying away.
Try running your model with the control card PARAM,EXPERTNL,CNTSTB to add some numerical stabilization to your contacts.
Additionally, try reducing a little bit the initial increment, by settting a small DT value inside your NLPARM card (i.e. 0.01).
There are a few tips in this post as well:
https://community.altair.com/community?id=community_blog&sys_id=538764ab1b3790d4a5f742eddc4bcba4
0