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Parameter Study of Numerical Simulation for Tensile Properties of Multi-Layer SMATed Alloys

Strength and ductility are very important to marine engineering. Because of their remarkable mechanical properties, nanocrystalline metals have been the focus of much research in recent years. Based on surface mechanical attrition treatment (SMAT) and warm co-rolling technologies, the resulting material performances amazingly exhibit high strength and exceptional ductility. Therefore, this method is a promising avenue for advanced materials for marine engineering. Cohesive finite element method (CFEM) is employed to investigate the tensile performance of multi-layer SMATed alloys. With the results of simulation and experiment compared, simulation parameters have been studied . According to comparing different simulation results, the model parameters, normal direction strength and tangential direction strength in CFEM are studied.