Performance Deregulation Rule of Aircraft Fatigue Critical Components in Consideration of Calendar Environment
The 2A12-T4 aluminum alloy specimens were studied with accelerated environment test to simulate different parking calendar years.Afterwards,these specimens were implemented with fatigue test to fracture.Through analyzing the test data,the relationship between S-N shape parameter and parking calendar years was caculated with dynamic S-N curve method.Then,the performance deregulation rule of aircraft fatigue critical components in consideration of calendar environment was established.In addition,the rule between Detail Fatigue Rating (DFR) and parking time was also set up.Compared with the similar specimens life from retired aircraft,the life with S-N curve and DRF method was in good agreement with actual value.The result shows that aircraft fatigue cirtical components performance declines with the prolonging parking calendar time.
2A12-T4 aluminum alloy fatigue critical component calendar environment dynamic S-N curve Detail Fatigue Rating
Chao Gao Yuting He Haiwei Zhang Bo Hou Teng Zhang
Aeronautics and Astronautics Engineering College,Air Force Engineering University,Xi’an 710038,China
国际会议
北京
英文
1-8
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）