摘要
推出了一种能方便地用于计算多种属塑性平面变形问题的上限公式，并利用Ｌａｇｒａｎｇｅ乘子法证明了获得最佳上限解的分块模式为滑移线场．
The paper derives an upper limit formula which can be easily used to solve many kinds of plastic problems of plane deformation, and by means of Lagrange′s method of multipliers it proves that the divided pattern is a slip line field when the upper limit solution is optimum.
出处
《江苏理工大学学报（自然科学版）》
1998年第2期59-64,共6页
Journal of Jiangsu University of Science and Technology(Natural Science)
关键词
塑性变形
速度图
滑移线场
上限法
金属
plastic deformation
velocity diagram
slip line field/upper limit method
