UBET在圆环压缩中的应用及绘制理论校准曲线精度的讨论  

Applicaation of UBET in Ring Compression and Discussion on the Precision of Theoretical Calibration Curves

作　　者：李双义[1] 张连洪[1] 

机构地区：[1]天津大学,天津300072

出　　处：《金属成形工艺》2001年第4期18-20,48,共4页Metal Forming Technology

摘　　要：将UBET用于求解压缩圆环问题 ,可简便快速地取得上限解 ;进而采用该解绘制塑性加工中测量摩擦系数的理论校准曲线。对中性层的位置进行了精确求解 ;分析了绘制理论校准曲线时 ,总压缩量。The upper bound solution for ring compression was obtained with UBET. The theoretical calibration curves for friction of plastic working was plotted and the exact position of the neutral layer of plastic flow was given in the solution. The influence of compressive deformation and deformation step on the theoretical calibration curves was also analyzed in the paper.

关 键 词：圆环压缩 上限元 摩擦系数 理论校准曲线 UBET 塑性加工 

分 类 号：TG302[金属学及工艺—金属压力加工]