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Linear Pertubation Analysis (with contact definition)

Linear Pertubation Analysis (with contact definition)

Linear Pertubation Analysis (with contact definition)

(OP)
Hallo Guys,

Can someone tell me why i cant constrain displacment in speccific direction in my model through contact interaction in Linear pertubation analysis
(*Buckle)????

RE: Linear Pertubation Analysis (with contact definition)

Perturbation analysis is 100% linear. Contact is a nonlinearity.

RE: Linear Pertubation Analysis (with contact definition)

(OP)
Thanks PamCrash, However How does Abaqus Solve the problem when i define contact in Linear pertubation analysis?? my procedure was to apply constrains in one direction instead of contact it works well however, at the end when i also apply contact i get very close result or does abaqus convert contact to a displacment constarin??
Thanks in advanced!

RE: Linear Pertubation Analysis (with contact definition)

The contact situation is frozen at the start of the perturbation analysis. Means that open contacts remain open and vice versa.

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