The earring of circular shell drawn cup has been mutually related with R-values of three directions. However FEM analyses of this earring for pure titanium drawn cup and for aluminum alloys are reported, there are few reports with whole 360° circumference analyses or different crystal type analyses. In this report, a circular-shell deep-drawing test and an FEM simulation utilizing LS-DYNA were conducted in order to investigate the occurrence of earring for low-carbon aluminum-killed steel (bcc) and pure titanium sheet (hcp).
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