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Development of Material Model for Crack Propagation of Casted Aluminum

This paper describes development of a material model for simulationg crack propagation of casted Aluminum parts. Authors established a new method for predicting the local fracture strain and strength dependent on solidification time during casting. Also, we introduced another new material model for estimating crack propagation with bi-axial stress distribution. These method and model were applied to a test piece simulation of Aluminum casted parts subject to tensile loads. The crack propagation by FE analysis showed good correlation with that of test. Also, Aluminum sub frame compression test was performed and the crack propagation and force-displacement charcteristics showed a good correlation with that of test.

application/pdf B-II-01.pdf — 4.3 MB