Analysis of Stress in Block during Rolling by Visioplasticity Method

Abstract

In this paper, the visioplasticity analysis on stress in block during rolling is discussed, and then the calculable results of the stress concerning the inside and surface of block are presented. This stress analysis depends considerably on the accuracy of the rolling test, which is carried out in order to determine the flow lines. It is very difficult to deduce the validity of the calculable results in detail because of the lack of measured examples on the stress in block. However, the measured rolling force by a load cell coincides extremely well with the one obtained from the stress in the thickness direction which is calculated here. The neutral point seems to exist on the valid position. Of course, the validity of the calculated results cannot be concluded from only two points. However, it may be possible to apply the visioplasticity method for the calculation of the stress in block, if the exact flow line can be determined.