摘要
本文采用上限元技术(Upper Bound Element Technique-UBET)对平面变形横向挤压过程进行单元划分,推导出平面变形直角三角形单元的速度场、应变速率场及上限功率表达式,并建立出各单元之间的上限功率计算式。
In this paper,the Upper Bound Element Technique(UBET)is employed to divide elements in the process of plane lateral extrusion.A system of eqations for calculating the velocity field,the stain velocity field and the upper bound power of straight triangle ele- ment in plane deformation state are concluded.The upper bound power calculation for- mulas also are derived between elements.
出处
《洛阳工学院学报》
1990年第4期24-32,共9页
Journal of Luoyang Institute of Technology
关键词
平面
挤压
变形
上限元分析
UBET
plane
deformation
extrusion
finite element analysis
