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首页> 外文会议>Fourth International Conference on Materials Processing Defects; Sep 24-26, 2002; Cachan, France >Analysis and Experiment on Void Closure Behaviour Inside the Sheet during Sheet Rolling Processes
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Analysis and Experiment on Void Closure Behaviour Inside the Sheet during Sheet Rolling Processes

机译：薄板轧制过程中薄板内部空隙闭合行为的分析和实验

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摘要

In this the plastic deformation of the sheet with an internal void inside during sheet rolling paper is simulated using a FE code DEFORM~(TM) 2D. The influences of various rolling conditions, such as thickness reduction, the dimension of the internal void, etc., on the dimension of voids at the exit were discussed. From a series of simulation results, it can be concluded that (1) the largest effective strain occurs at the front and back of the void; (2) the effective strain becomes larger when the void flows from the entrance to exit of the roll gap; and (3) the critical reduction is smaller for a round void than a rectangular one with the same height. The validity of this model was verified by comparing the analytical results with the experimental measurements.
机译：在这种情况下，在薄板卷纸过程中内部具有内部空隙的薄板的塑性变形使用FE代码DEFORM〜TM 2D进行模拟。讨论了各种轧制条件（如厚度减小，内部空隙的尺寸等）对出口处空隙尺寸的影响。从一系列的模拟结果可以得出结论：（1）最大有效应变出现在空隙的正面和背面； （2）当空隙从辊缝的入口流向出口时，有效应变变大。 （3）圆形空隙的临界减小比具有相同高度的矩形空隙的临界减小小。通过将分析结果与实验测量值进行比较，验证了该模型的有效性。

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