理化检验：物理分册2012，Vol.48Issue(9)：569-571,630,4.
铝合金6082T6中的疲劳不扩展裂纹
Non-propagating Crack in Aluminum Alloy 6082T6
陈荣康 1吴昊1
作者信息
- 1. 同济大学航空航天与力学学院,上海200092
- 折叠
摘要
Abstract
As a frequently used aeronautical material, aluminium alloy 6082T6 has the excellent mechanical properties. The fatigue non-propagating crack in the metal was studied. The SENT specimens were used in the fatigue tests. The 1 mm radii stop-holes were carefully centered and drilled at the fatigue crack tips with the help of a milling machine. After the researches it was found that the non-propagating crack length can be achieved through the reasonable specimens design. The non-propagating crack tolerance can be pre-setted at the dangerous place where the crack tends to be initiated and the reliability life of component can be significantly improved. The method can improve the impact resistance of component and reduce the risk of crack propagation during the maintenance interval.关键词
铝合金6082T6/疲劳/小裂纹/不扩展裂纹/应力梯度Key words
aluminum alloy 6082T6/fatigue/short crack/non-propagating crack/stress gradient分类
数理科学引用本文复制引用
陈荣康,吴昊..铝合金6082T6中的疲劳不扩展裂纹[J].理化检验：物理分册,2012,48(9):569-571,630,4.
