| 疲劳裂纹扩展柔度法测量系统研究 |
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| 引用本文： | 方钦志,张石山,赵明嗥,王建国.疲劳裂纹扩展柔度法测量系统研究[J].实验力学,2000,15(1):110-114. |
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| 作者姓名： | 方钦志 张石山 赵明嗥 王建国 |
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| 作者单位： | 机械工业部郑州机械研究所,先进制造拄术中心,河南郑州450052 |
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| 基金项目： | 国家自然科学基金资助项目(59375192) |
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| 摘 要： | 为了寻求高温高压环境介质下的疲劳裂纹扩展的测量方法，本文研制了基于柔度法的疲劳裂纹扩展系统。根据显微镜的标定结果，验证该计算机自动测量系统给出了可信的测量结果。其中，位移由涡流位移传感器测得，载荷由试验机自带的标准传感器测得。计算机实时采集并处理测试信号，给出裂纹扩展速率。文中介绍了该系统的功能及应用前景。作为应用实例，给出了４２ＣｒＶ和ＩＲ３Ｍｏ等钢种的疲劳裂纹扩展速度及门槛值。
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| 关 键 词： | 疲劳 裂纹扩展 柔度法 裂纹测量 |
| 文章编号： | 1001-4888(2000)01-0110-05 |
| 修稿时间： | 1999-02-23 |
Research on the Measuring System for Fatigue Crock Growth Investigation by Compliance Method |
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| FANG Qin-zhi,ZHANG Shi-shan,ZHAO Ming-hao,WANG Jian-guo.Research on the Measuring System for Fatigue Crock Growth Investigation by Compliance Method[J].Journal of Experimental Mechanics,2000,15(1):110-114. |
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| Authors: | FANG Qin-zhi ZHANG Shi-shan ZHAO Ming-hao WANG Jian-guo |
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| Institution: | FANG Qin-zhi
,ZHANG Shi-shan
,ZHAO Ming-hao
,WANG Jian-guo
;(University of Science and Technology of China, Hefei 230026) |
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| Abstract: | A measuring system used for fatigue crack growth investigation based on compliance method is presented. The system is computerized and could give the crack growth rate of the specimen in test instantly.The system is suitable for use in the tests under high pressure and elevated temperature conditions.The structure and working principle of the system are described.An experiment for 42CrV and IR3Mo steels by using the system is reported. |
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| Keywords: | fatigue crack compliance crack measurement |
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