Development of a predictive model for draw bead restraining force utilizing work of nine and wang
Tóm tắt
By using a virtual work approach and considering the effect of anisotropy and strain rate, a regression model was developed that accurately predicts the draw bead restraining force for rimmed steel, aluminum killed steel, 2036-T4 aluminum, and 5182-0 aluminum from experimental work by Nine2 using a draw bead tester. It has been shown that by differentiating a regression model it is possible to quantitatively assess the effect of variability of the independent variables on the variability of the dependent variable.
Tài liệu tham khảo
N.M. Wang: “A Mathematical Model of Draw Bead Forces in Sheet Metal Forming,”J. of Applied Metalworking, July 1982, vol. 2, no. 3, p. 193.
H. D. Nine: “The Applicability of Coulomb’s Friction Law to Draw Beads in Sheet Metal Forming,”J. of Applied Metalworking, July 1982, vol. 2, no. 3, p. 200.
H. D. Nine: “New Draw Bead Concepts for Sheet Metal Forming,”J. of Applied Metalworking, July 1982, vol. 2, no. 3, p. 195.
M. L. Wenner: “On Work Hardening and Springback in Plane Strain Draw Forming,” General Motors Research Report GMR-3645 (released for outside distribution), April 1981.
A. G. Preban: Private Communication.
H. Nine: Private Communication.
B. S. Levy: “Material and Design Interactions in Collision Energy Man- agement,”SAE 810234, February 23–27, 1981.