本文介绍了一种确定平面应变中最大主应变方向的新方法。
This paper introduces a new way for defining the maximum principal strain direction in plane strain condition.
主应变的大小和方向可以表示为一个椭球体。
The magnitudes and directions of the main strain are expressed as an ellipsoid.
从理论上说明塑性应变增量的方向不仅与应力的主方向有关，还与应力增量的方向有关。
The theoretical result shows that the direction of plastic strain increment is determined by the direction of principal stress and stress increment.
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