Error with element energy
I'm trying to run a crash simulation and have encountered the element distortion/extrusion shown in the attached image. I don't know the correct terminology for this so it has been difficult to find solutions online. I believe it is caused by the contact interfaces and I have enlarged the gap min and told the nodes of deleted elements to be removed. There is also failure criteria which seems to have been ignored for these elements because they should have failed and been deleted. Any help would be appreciated.
<?xml version="1.0" encoding="UTF-8"?>
Answers
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Hi,
What type of contact are you using?
If it is type7 can you try with Igap= 1/2, change elements to full integration and check the result, please?
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have you checked penetration?
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I've checked in hypercrash and not found any initial penetrations. I'm using both type 2 and 7 contacts but I believe the problem is in the type 7. I'm also not sure how to set full integration or whether it is already set. I'm using property 19 SH_SANDW with Ishell 24
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Altair Forum User said:
I've checked in hypercrash and not found any initial penetrations.
you can read in .out file all information about contact problems.
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and if i were you i would delete all forces and loads in model.
and when you win penetration you can add forces and loades=)
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What about the units?
Is the load magnitude is too high?
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Altair Employee