Loading path is one of key factors that influence the formability of sheet metal forming processes. In this study, the effect of several kinds of loading paths on the thickness distribution of TRIP steel is investigated in a deep drawing process based on a constitutive model accompanying the strain-induced martensite transformation. A kinetic model of transformation, that describes the relationship between the thickness distribution of a deep drawing process and the martensite transformation, is used to calculate the martensite volume fraction. The influences of loading path on the martensite transformation are also evaluated through the change in the stress-strain state, the forming temperature, the transformation driving force, the nucleation site probability and the shear-band intersection controlled by the stress-strain state and forming temperature at the minimum thickness location in the formed part.
- Manufacturing Engineering Division
Study on Loading Path Influences on the Thickness Distribution of TRIP Steels During Sheet Metal Forming
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Dan, WJ, Zhang, WG, & Li, SH. "Study on Loading Path Influences on the Thickness Distribution of TRIP Steels During Sheet Metal Forming." Proceedings of the ASME 2009 International Manufacturing Science and Engineering Conference. ASME 2009 International Manufacturing Science and Engineering Conference, Volume 1. West Lafayette, Indiana, USA. October 4–7, 2009. pp. 499-505. ASME. https://doi.org/10.1115/MSEC2009-84018
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