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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“A screening of existent commercial and non-commercial tools was carried out in respect to their fracture mechanics capabilities, their design abilities, implementation as well as their complexity. Although, there are many software possibilities, only those within the reach of the author were evaluated. This resulted in the selection of the commercial tool StressCheck®. The assessment of crack propagation on compact tension and two stringer specimens governed by the Paris and Forman regimes was satisfactory compared with experimental results using the material data from simple standard specimens.”
Lloren Llopart Prieto (EADS)Doctoral Thesis, "Modelling and analysis of crack turning on aeronautical structures"