机构地区: 东北大学
出 处: 《应用数学和力学》 1994年第7期619-625,共7页
摘 要: 文章采用vonKarman基本假设对模面函数为抛物线(又称喇叭模)的拔制问题设定了运动许可速度场,并经曲线积分与变上限积分得到拔制力的上界解析解。 In this paper with Von Karman's basic assumptions a kinematically admissible continuous velocity field has been established to draw through parabolic dies(or called trumpet dies).Then using the curvilinear integral and the integral as a function of the upper limit,an upper bound analytical solution of the drawing stress is obtained
领 域: [金属学及工艺]