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发表于 2003-6-27 15:32:18
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来自 德国
回复: 【讨论】Patran中如何模拟点焊单元
For general modeling of spotweld, normal beam element or rigid bar maybe OK.
but more detailed simulation which due to mesh independency, position indepency, and failure criterien, should have more alternatives.
e.g.
1. normal beam with shear and normal forces as faliure force.
2. brick element with contact defintion as failure.
3. speiclal material definition in user programming.
Modeling of spotweld or seam welding are nowadays a hot point, not alone in MSC.nastran. speaking only solver here.
By the way to Wren:
have a try by hand:
tips: midpoint and relevant PIDs nearby. |
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