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A finite element (FE) analysis incorporating particles and grain structure is used to study the localization behavior of direct chill cast (DC) and strip cast (CC) AA5754 alloy sheet. A two-dimensional (2D) plane stress FE model is used to simulate deformation of a sample under uniaxial tension prior to necking. A 2D plane strain model is then used to simulate the post-necking behavior, up to fracture...
Experimental observations show that the continuous cast (CC) Al–Mg alloy with 0.21wt% Fe has a considerably lower fracture strain than that of a CC alloy with 0.08wt% Fe and a direct chill cast (DC) alloy with 0.21% Fe. However, the forming limit strains are almost the same for the three alloys. The similarities and differences are thought to relate with the distribution of hard second-phase particles...
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