给出了一点不同斜面上正应力和剪应力分布的三维图形, 分析了图形形状与变形类型的对应关系. 正应力图形和剪应力图形可以分为三种类型, 分别对应压缩类变形、平面应变以及拉伸类变形. 利用正应力图形和剪应力图形, 分析了单向拉伸、拉深及挤压工序中典型点的变形类型及尺寸变化趋势.
A three--dimensional figure of normal stress and shear stress of one stress state was given, and the corresponding relationship of the figure with deformation type was analyzed.The figures can be divided into three main types, which refer to compression, plain strain, and tension, respectively. In addition, the stress--strain of typical points in simple tension, drawing, and extrusion was successfully analyzed by the figures.
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