Deployment of Smart Simulation Apps in Support of DaDT Activities
This presentation highlights a DaDT Sim App developed in support of the AFRL-SBIR Phase III project “Deep Residual Stress Method Demo Program”. The Crack Propagation Analysis Tool (CPAT) incorporates the beneficial effects of residual stresses due to cold-expansion in the computation of crack propagation life of components with cold-worked holes.
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The software provides a highly reliable and user-friendly production stress analysis tool that will replace the Finite Element Method (FEM) tools and failure criteria the experts currently employ for analyzing bonded joints. The software includes an FEM-based handbook format, which allows non-experts to utilize models prepared by specialists. The handbook problems include built-in failure criteria, geometric and material nonlinearities, and the modern FEM technology provides better error control and the treatment of very large aspect ratios.”
Dr. Stephen P. EngelstadTechnical Fellow, Lockheed Martin Aeronautics Company, Structural Methods and Analysis