StressCheck Tutorial: Computation of Cross Section Centroid
Abstract: Using intrinsic functions SPCTRX, SPCTRY and SPCTRZ to compute the global X, Y, Z locations of a cross section centroid. The locations are computed through the application of a “dummy” traction (with X=SPCTRX/SPAREA, Y=SPCTRY/SPAREA and Z=SPCTRZ/SPAREA) to the surface or surfaces representing the cross section, and then performing a load check to return the X, Y, Z locations of the centroid.
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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”