超高强度钢形变与断裂规律研究
A Study on Deformation Characteristic of Ultra High Strength Steel and Its Fracture
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摘要: 运用先进的物理方法,测出了超高强度钢负荷-伸长曲线新的形状,建立了一种由负荷-伸长全曲线计算真应力-真应变的方法,计算结果指出:在整个变形阶段中,不论是在最大负荷前或最大负荷后都是分段幂乘硬化的,最后研究硬化指数的计算方法,供讨论.Abstract: A new shape on the load and elongation curve of ultra high strength structural steel in tension is measured by means of the advanced physical methods. A method of calculating true stress-true strain is found in accordance with the whole load-elongation curve. The calculation results show that during the period of deformation, whether prior to or after the maximum load, all are staged power hardening. The method of calculating hardening in dex is finally studied for discussion.
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