| 缺口疲劳短裂纹扩展规律及长短裂纹分界点的确定 |
| |
| 引用本文： | 赵连华.缺口疲劳短裂纹扩展规律及长短裂纹分界点的确定[J].中原工学院学报,2007,18(2):72-74. |
| |
| 作者姓名： | 赵连华 |
| |
| 作者单位： | 铁岭师范高等专科学校,辽宁,铁岭,112001 |
| |
| 摘 要： | 采用弹塑性理论定理分析缺口根部局部应力应变场来确定长短裂纹分界点,提出了预测缺口短裂纹扩展寿命的方法,对提高缺口件疲劳全寿命估算的精度具有一定的应用价值,实验结果表明该处理方法简单合理。
|
| 关 键 词： | 疲劳裂纹 长裂纹 短裂纹 裂纹扩展 局部应力 |
| 文章编号： | 1671-6906(2007)02-0072-03 |
| 修稿时间： | 2007年1月8日 |
Determine Extended Discipline of Short Nick Fatigue Crack and the Dividing Line Points of Long Crack and Short Crack |
| |
| ZHAO Lian-hua.Determine Extended Discipline of Short Nick Fatigue Crack and the Dividing Line Points of Long Crack and Short Crack[J].Journal of Zhongyuan Institute of Technology,2007,18(2):72-74. |
| |
| Authors: | ZHAO Lian-hua |
| |
| Abstract: | applying theorem of elastoplastic theory to analysis nick radical local stress-strain field to determine the dividing line points of long crack and short crack. The paper puts forward method of forecast nick short crack extended life which has applying value to increase calculated precision of nick parts' fatigue all life, experimental result shows the treatment method is more simple and reasonable. |
| |
| Keywords: | fatigue crack long crack short crack crack extend local stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
