HOW TO USE SPOT WELDS

[ferro1001]

Hi,

I have to model the ceiling of a bus in an impact essay in dynamic Explicit. The ceiling has an upper shell of glass fiber composite sticked to an structure of bars that I have modeled with beam elements, and beneath it another shell of plywood. I have tied them with the TIE CONSTRAINT, but it finishes failing. I think that the master surface should be the structure of bars and the two shells should be the slave surfaces, but the shells´ mesh is much more coarse than the bars´, and the tutorial says that that could make it fail. I have read something about using spot welds that do not depend on meshing, but I don´t know how to use them. Coul anybody help me?

Thanks in advance,

ferro1001

 

[brad]

Look up "Fastener" in the keywords manual. This is the ABAQUS general term for spotwelds.

 

[ferro1001]

Thanks Brad,

That is the point, I don´t know how to use the fastener. What modulus is it in? What do I have to do?

ferro1001