摘要
文章对平面变形辊拔与辊挤问题建立了运动许可的三角形速度场并获得上界解析解。该解与 Avitzur 以连续速度场得到的上界解进行比较表明,有时本文解法可得到更低的上界值。
A kinematically admissble triangular velocity field is established and applied to the plane strain due to draw-out/extrusion by idle rolls, with an upper-bound analytical solution thus obtained. Compared with that using continuous velocity field by Avitzur, the solution can give even lower values than Avit-zur's sometimes.
关键词
辊拔
辊挤
三角形速度场
平面变形
draw-out/extrusion by idle roll, triangular velocity field, upper-bound solution.
