StressCheck Tutorial: Modeling Spline-Shaped Thru Cracks
Abstract: Modeling and automeshing of spline-shaped thru cracks for a 2D plate with offset holes. The crack shapes were generated by creating points at specific locations on each side of the holes, then fitting splines through the points. The splines were then imprinted on the plate, and automeshed using the Crack Edge method.
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“Through the use of StressCheck® the A-10 Aircraft Structural Integrity Program’s (ASIP) Analysis Group is able to model more accurately the physics of fatigue crack propagation in critical aircraft structure. Through this tool we are able to model, analyze and predict failure of aircraft structure and then develop crucial inspection and maintenance planes to ensure the safety and sustainability of our nations warplanes. Without the analysis capability provided to us through StressCheck® we would not be able to provide accurate assessments of the A-10 structure to top USAF leadership.”
SWRI Research EngineerSouthwest Research Institute