| 试验确定自增强圆筒的表面裂纹K1因子和疲劳扩展规律 |
| |
| 引用本文： | 查子初,王志群.试验确定自增强圆筒的表面裂纹K1因子和疲劳扩展规律[J].实验力学,1991,6(2):169-176. |
| |
| 作者姓名： | 查子初 王志群 |
| |
| 作者单位： | 华东工学院，华东工学院，华东工学院 |
| |
| 摘 要： | 本文提供了一种可以进行自增强处理的圆筒试样,通过实验用柔度法确定了该试样的表面裂纹的应力强度因子,介绍了含表面裂纹试样的柔度测试技术,导出了柔度与表面裂纹尖端前缘各点的应力强度因子的关系式,该式可作为各种含表面裂纹试样柔度法测表面裂纹 K_1因子的参考,本文还测定了不同自增强程度下,自增强圆筒的表面裂纹疲劳扩展规律。
|
| 关 键 词： | 圆筒 表面裂纹 疲劳裂纹扩展 |
Determination of K_1Stress Intensity Factors and Fatigue Crack Growth for Surface Crack in Auto-strengthened Thick-walled Ring Specimens |
| |
| Zha Zichu Wang Zhiqun Wang Junxu.Determination of K_1Stress Intensity Factors and Fatigue Crack Growth for Surface Crack in Auto-strengthened Thick-walled Ring Specimens[J].Journal of Experimental Mechanics,1991,6(2):169-176. |
| |
| Authors: | Zha Zichu Wang Zhiqun Wang Junxu |
| |
| Institution: | East China Institute of Technology |
| |
| Abstract: | An auto strengthened thick-walled ring specimen is developed.The stress in- tensity factors for surface crack in this specimen arc determined by compliance method.The relation between SIF at surface crack tip and compliance is given,and may be used as a reference to determine SIF for surface crack in other specimens.Aside from this,the fatigue crack growth rates and the shape variation of a growing surface fatigue crack in these speci- mens are also measured. |
| |
| Keywords: | compliance teat autostrengthed ring stress-intensity factors for the suace crack fatigue crack growth |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《实验力学》浏览原始摘要信息 |
| 点击此处可从《实验力学》下载免费的PDF全文 |
