摘要
疲劳失效是影响飞机金属结构安全性和使用寿命的主要因素,金属疲劳的学术研究和工程实践在相互促进中得以不断发展.论文总结了飞机传统金属结构疲劳问题的特点,综述了当前飞机金属结构疲劳分析方法的三种思路,即从材料疲劳性能出发的唯象疲劳分析方法、从结构疲劳品质出发的唯象疲劳分析方法、以及以断裂力学为基础的分析方法,剖析了不同思路分析方法的内涵、流程及潜在发展,讨论了学术研究和分析方法的进步对飞机结构抗疲劳保安全策略的变革性影响.在此基础上,结合先进材料与新型结构的发展和应用所提出的新挑战和新思路、以及未来飞机结构对疲劳与损伤容限评价工作的新需求,对结构疲劳分析方法研究的未来发展作出浅析和展望.
The safety and service life of aircraft metallic structures are dominated by fatigue failure,and the corresponding academic research and engineering practice have been developing in mutual promotion.This paper concludes the features of fatigue problems in aircraft metallic structures;reviews the existing three fundamental methodologies of fatigue analysis,i.e.,those based on material fatigue properties,structural fatigue qualities,and fracture mechanics,respectively;dissects the respective intentions and potential developments for each methodology;and discusses the revolutionary effects of progress in academic research and analysis methods on the anti-fatigue strategies for aircraft metallic structures.Combined with new challenges and ideas raised by the development and application of advanced materials and innovative structures,as well as new requirements on fatigue and damage tolerance evaluations for future aircraft structures,this paper finally outlines the prospective future research directions of fatigue analysis methods and methodologies.
作者
刘斌超
鲁嵩嵩
曾苇鹏
鲍蕊
Binchao LiuSongsong Lu;Weipeng Zeng;Rui Bao(School of Aeronautic Science and Engineering,Beihang University,Beijing,100191)
出处
《固体力学学报》
CAS
CSCD
北大核心
2023年第4期417-457,共41页
Chinese Journal of Solid Mechanics
基金
装备重大基础研究项目(514010502-202)
民用飞机专项科研项目《民机质量、适航、事故调查体系研究(二期)-质量和可靠性保证体系研究》资助
关键词
金属结构
疲劳寿命
断裂力学
耐久性与损伤容限
metallic structures
fatigue lifetime
fracture mechanics
durability and damage tolerance
