Helpful Hints and Tips: Constraining Rigid Body Motion
Best practices and case studies for applying rigid body constraints (in the form of the Rigid Body, Node and Spring Coeff. methods) in Planar and 3D elasticity.
Note: rigid body constraints are only applicable to limit zero strain modes, and not to react loads.
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“We have been having very good success using the P-Version finite element code, StressCheck®, to develop the 2-D solutions for two independent cracks in a plate. I have asked one of our AFGROW team members to model the plate and lug cases using StressCheck® and compare them to the existing AFGROW closed-form solutions. [He] modeled the cases several different ways to be sure that he was getting the best possible solutions. He has verified that the bearing load option in StressCheck® provides excellent results”