摘要
材料的冲击疲劳问题在航空工程中大量存在,舰载机的弹射起飞、拦阻着舰都是典型的冲击疲劳问题。本文梳理了冲击疲劳概念的早期发展历程,综述了自2000年以来冲击疲劳领域的主要研究进展,包括材料冲击疲劳性能的主要影响因素、材料冲击疲劳试验方法、冲击疲劳的损伤表征和寿命预计以及冲击疲劳问题的数值计算方法等,指出材料的微观结构、边界条件、使用环境、冲击载荷类型等对冲击疲劳性能有显著影响。总结了航空工程中冲击疲劳问题面临的主要挑战,并结合未来工程结构设计的需求,展望了航空领域冲击疲劳技术的未来发展方向。
Impact fatigue problems of materials widely exist in aviation engineering.Launching and landing of carrier-based aircrafts are typical impact fatigue problems.This paper reviews the early development of the concept of impact fatigue,summarizes the main research progress in the field of impact fatigue since 2000,including the main factors affecting the impact fatigue performance of materials,test methods,damage characterization and life prediction of impact fatigue and numerical calculation methods of impact fatigue problems.It is indicated that the microstructure,boundary condition,service environment and impact load type of the material are of significant influence on the impact fatigue performance.This paper summarizes the main challenges of the impact fatigue problems in the aviation engineering,and prospects the future development of the impact fatigue technology in the aviation field based on the requirements of the future engineering structure design.
作者
郭玉佩
王彬文
杨强
白春玉
刘小川
GUO Yupei;WANG Binwen;YANG Qiang;BAI Chunyu;LIU Xiaochuan(Aviation Key Laboratory of Science and Technology on Structural Impact Dynamics,Aircraft Strength Research Institute of China,Xi’an 710065,China)
出处
《航空工程进展》
CSCD
2020年第5期609-617,共9页
Advances in Aeronautical Science and Engineering
关键词
冲击疲劳
航空材料
裂纹
微观机制
试验
数值仿真
impact fatigue
aeronautical materials
crackle
micro mechanism
experiment
numerical simulation
