| 段自力.确定裂纹尖端形状及张开位移的焦散线—伪焦散线法实验研究[J].实验力学,1995,10(2): |
| 确定裂纹尖端形状及张开位移的焦散线—伪焦散线法实验研究 |
| A New Method for Measuring Crack-tip Opening Displacement by Means of Caustics and Pseudocaustics |
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| DOI： |
| 中文关键词: 裂纹尖端 焦散线 伪焦散线法 裂纹张开位移 |
| 英文关键词:rack-tip opening displacement,causitcs-pseudocaustics method. |
| 基金项目:国家科委资助 |
| 段自力 |
| 华中理工大学 |
| 摘要点击次数: 222 |
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| 中文摘要: |
| 本文根据反射式焦散线－伪焦散线法和弹塑性断裂力学的基本原理，推导出裂纹尖端形状方程，为测量裂纹尖端的张开位移，提供一种全新的实验方法，本文还引用实例来进行验证． |
| 英文摘要: |
| In this paper,three kinds of experimental method used to measure crack-tip opening displcement by means of caustics method are analysed.A new method is proposed to deterpoine the shape'of crack tip on the basis of caustics-pseudocaustics method and elasto |
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