在两次加载路径中rH值的实验测量
Experimental Measurement of rH Value in Two Stage Strain Paths
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摘要: 应用Hill的准则,采用间接测量方法,得到了低碳钢在两次加载路径中的平面各向异性系数rH。在所测数据ε1p和ε2p中呈现出线性关系。结果表明:rH仅为斜率K12的简单函数,与ε1p值变化无关。在后继拉伸实验中,rH值是影响其力学性能的重要因素之一。Abstract: The plane anistropic paramater (rH) of low carbon steel sheet in two stage strain paths was measured using Hill's Criterion,ε1p and ε2p measured from the experiments, a linear relationship was observed. rH is as a simple function of the slope term, which is independent on ε1p.