| 变幅载荷谱中加载顺序对疲劳裂纹扩展速率的影响 |
| |
| 引用本文： | 巩建鸣,沈士明,戴树和.变幅载荷谱中加载顺序对疲劳裂纹扩展速率的影响[J].陶瓷科学与艺术,1992(4). |
| |
| 作者姓名： | 巩建鸣 沈士明 戴树和 |
| |
| 作者单位： | 南京化工学院化工机械系，南京化工学院化工机械系，南京化工学院化工机械系 |
| |
| 摘 要： | 根据某高温高压换热器实际工况载荷波动所编制的载荷谱,用材料为2 1/4Cr-1Mo钢的CT试件,不同的载荷谱加载顺序,进行变幅载荷谱下的疲劳裂纹扩展速率试验研究。根据试验数据和超载迟滞效应理论,讨论了不同载荷谱加载顺序对疲劳裂纹扩展速率的影响。
|
| 关 键 词： | 疲劳裂纹扩展 载荷谱 变幅载荷 |
EXPERIMENTAL STUDY ABOUT EFFECT OF THE LOADING ORDER OF VARIABLE AMPLITUDE LOADING SPECTRUM ON FATIGUE CRACK GROWTH RATE |
| |
| Gang Jianming Shen Shiming Dai Shuhe.EXPERIMENTAL STUDY ABOUT EFFECT OF THE LOADING ORDER OF VARIABLE AMPLITUDE LOADING SPECTRUM ON FATIGUE CRACK GROWTH RATE[J].Ceramics Science & Art,1992(4). |
| |
| Authors: | Gang Jianming Shen Shiming Dai Shuhe |
| |
| Affiliation: | Department of Chemical Machinery |
| |
| Abstract: | Using the CT specimens of 2 1/4 Cr-1Mo steel, the fatigue crack growth tests were carried out under four kinds of loading order of variable amplitude loading spectrum on the basis of the actual loading variation data of a high-temperature and high-pressure heat-exchanger. The test results were analysed using the theory of overloading retardation. In this paper, the effect of the loading order on fatigue crack growth rate was discussed and some significant conclusions were obtained. |
| |
| Keywords: | fatigue crack growth loading spectrum variable amplitude loading |
| 本文献已被 CNKI 等数据库收录！ |
