Served Life Assessment Model of Aircraft Aluminum Alloy Structure Subjected to Corrosion Damage

摘要：

A holistic life prediction model of aging aircraft aluminum alloy structure served in corrosive environment was presented. The basic approach to compute the effects of corrosion on structural life was described and exercised for two types of corrosion: pitting corrosion and exfoliation corrosion. The finite element method (FEM) was used to calculate the stress multiplication of aluminum alloy structure subjected to the two kinds of corrosion damage. Combining the results of FEM calculation with the AFGROW software of crack growth analyses, the life cycles of corroded structure were estimated, and the predicted fatigue lives were in good agreement with experimental cycles.

关键词： aluminum alloy corrosion damage finite element method crack growth life prediction

作者: ZHANG Youhong CHANG Xinlong ZHANG Shiying ZHANG Wei HUA Mingjun

作者单位: The Second Department,the Second Artillery Engineering Institute,Xian 710025,Shaanxi,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1805-1808

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）