Applied Mathematics and Mechanics (English Edition) ›› 1994, Vol. 15 ›› Issue (7): 649-656.
赵德文1, 刘相华1, 王国栋1, 李桂范2
Zhao De-wen1, Liu Xiang-hua1, wang Guo-dong1, Li Gui-fan2
摘要: n this paper with Von Karmanis basic assumptions a kinematically admissible continuous velocity field has been established to drawing through parabolic dies (or called trumpet dies). Then by. using the curvilinear and the integral as a function of the upper limit an upper bound analytical solution of the drawing stress is obtained.