摘要
总结了Ｒ圆角细节原始疲劳质量研究的探索工作。通过对所设计的典型Ｒ圆角细节试件的耐久性试验，证实了这种新细节（主要考虑Ｒ圆角过渡区对寿命的影响）可以获得断口的ａ～ｔ曲线（ａ为裂纹长度；ｔ为试验的飞行小时数），并通过断口反推得到其原始疲劳质量，为这种新细节的耐久性设计和分析提供了技术基础。
Exploratory investigation on Initial Fatigue Quality (IFQ) of details with a R angle is summarized. It is verified that a～t curves ( a —crack length, t —flying hours) of cracked section can be achieved by durability tests of the new typical specimens with a R angle and the IFQ of details can be obtained by anti inferring from cracked sections, which supplies a technical foundation for the durability design and analysis of the new details.
出处
《机械科学与技术》
CSCD
北大核心
1998年第5期729-731,共3页
Mechanical Science and Technology for Aerospace Engineering
