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中文核心期刊

云纹干涉法瞬态应变分析

DYNAMIC STRAIN ANALYSIS METHOD USING ONE-BEAM SHEARING MOIRE INTERFEROMETRY

  • 摘要: 本文将单光束错位云纹干涉法应用于动态测量,获得了一种可独立求解全场瞬态应变分量,不受材料限制的动态测量新方法。文中应用该方法对一个受冲击载荷的带也孔方板的动态应变传播过程及对称面上的动应变分布进行了研究,得到了比较理想的结果。

     

    Abstract: This paper developed a new dynamic analysis method based on the principle of one beam shearing Moire interferometry.The method can be used to measure the full strain field of dynamic problems. It is characterised by simple optical arangment,excellent fringe contrast and high sensitivity, etc. Besides, as it uses a portable multiple pulsed - ruby -laser as light source,the method is particularly suitable for field measurement.In the paper, a problem of stress propagating in a rectangle is studied with the ab...

     

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