【摘要】 对使用平面应刀状态下各种常见形式的应变花计算一点处主应变和主应力及其方向的一般表达式作了整理和补充，并提出了一种处理应变花实验数据、提高实测精度的新方法。更多还原

【Abstract】 The strain rosette in common debrmation under the state of flat surface stress isanalysed.The general expression of the quantity and direction of main strain and main stressare counted and appended here.The article also proposes a new method to handling the dateof strain rosette and to improve experimental measurements precision.更多还原