摘要
该文介绍了使用细节疲劳额定值(DFR)对结构进行疲劳分析和对疲劳品质进行评估的基本原理,讨论了细节疲劳额定值与标准S-N曲线的关系。通过试验探索,给出了有关细节疲劳额定值试验方法的一些实用建议,并推导了疲劳损伤的折算公式,通过铝合金螺接试件试验验证了所提出的试验方法和疲劳损伤的折算公式。
The DFR ( detail fatigue rating) used for evaluating the detail fatigue character of structures is introduced. The relationship between DFR and standard S - N curve is also presented. Based on experiments, some advice for DFR testing method is suggested. A formula on equivalent fatigue life is deduced. This advice and the formula are justified by an aluminum alloy specimen experiment.
出处
《实验技术与管理》
CAS
2008年第1期27-29,共3页
Experimental Technology and Management
基金
陕西省教育厅计划科研项目(06JK271)
关键词
细节疲劳额定值
试验方法
疲劳损伤折算
DFR (detail fatigue rating)
testing method
equivalent fatigue life