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本文利用连续速度场解析了棒材辊拔与辊挤问题并获得上界解析解。该解与以主应力法得到的解析解进行比较表明,上界解略高于主应力法解析解。
In this paper, the continuous velocity field is used to analyze the roll bar extrusion and roll extrusion problems and obtain the upper bound analytic solution. The comparison between this solution and the analytic solution obtained by the principal stress method shows that the solution of the upper bound is slightly higher than that of the principal stress method.