Helpful Hints and Tips: Using the 3-2-1 Rigid Body Constraint Approach
Abstract: This presentation demonstrates the 3-2-1 rigid body constraint approach as described by Tony Abbey’s article “Free-Floating FEA Models” in Digital Engineering. Free-floating is self-equilibrated under the applied load.
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“In the case of the through crack configuration, the comparison of experimental and StressCheck® derived geometry factors showed a close correlation and were an improvement to solutions provided in AFGROW at the time. Based on the results of this research, StressCheck® pin-loaded lug geometry factors have since been incorporated into the AFGROW software.”
Dr. Alten GrandtPurdue University