| 引用本文: | 张帆.一种确定光弹贴片中主应变的近似方法.[J].国防科技大学学报,1992,14(2):100-104.[点击复制] |
| Zhang Fan.A Approximate Method for Separating Strains in the Photoelastic Coatings[J].Journal of National University of Defense Technology,1992,14(2):100-104[点击复制] |
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| 一种确定光弹贴片中主应变的近似方法 |
| 张帆 |
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(航天技术系)
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| 摘要: |
| 本文提出了一种用于确定光弹贴片中主应变分离的新方法。该方法是通过在贴片上钻小孔，取孔边沿两个主应力方向的条纹级数比近似等于主应变比进行主应变分离的。文中论述了该方法的原理，推导出一近似公式，并得典型实验验证。研究表明这种方法使用简便，具有工程应用价值。 |
| 关键词: 光弹贴片，钻孔法，等差线，等倾线 |
| DOI： |
| 投稿日期：1991-05-06 |
| 基金项目: |
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| A Approximate Method for Separating Strains in the Photoelastic Coatings |
| Zhang Fan |
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(Department of Aerospace Technology)
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| Abstract: |
| A new method for separating principal Strains of photoelastic coatings has been presented in this paper. Drilling small holes in the coatings, in directions of principal strains, taking approximately the ratio of fringes at the hole edge equal to the ratio of principal strains，principal strains can be obtained. In the paper, the principle and approximate equation and typical experiment have been researched. The method is visible and simple. It is shown that the method is easy to handle and practical value in engineering. |
| Keywords: photoelastic Coatings,drilling holes,Isochromatic,Isoclinic |
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