Simulate bolt constraint
Altair EmployeeI want to simulate in Hypermesh the constraint, in a cilinder, due to the presence of bolts. To do this I created a geometrical node in center of the cilinder with a constraint of all 6 DOF, and then used rigid element (RBE2) to connect the node with all nodes in the surface of the cilinder, as shown in this picture:
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results in Hyperview show a very strong vonMises stress in the external part of the cilinder. I think this result does not represent reality because the stress should be uniform along the bolt.
<?xml version="1.0" encoding="UTF-8"?>
there are other way to modeliza the interaction between structure and bolts?
thanks
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Dear Prakash,
Can we generate spring connectors and apply the stiffness of the bolt instead of RBE2 & RBE3 elements???
Hi Darioaresta,
When there is a change or deviation in the body, more stress will be seen at that areas (Stress concetration areas).
You can exclude a row of elements around the hole and post process for results.
Also, since RBE2s are stiffer elements and will not allows nodes to move relatively. Instead use RBE3 elements.