Fatigue Life Prediction for 2060 Aluminium–Lithium Alloy with Impact Damage

Autor:	Lei Li, Xiongfei Li, Zhixin Zhan, Weiping Hu, Qingchun Meng
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	aluminium–lithium alloy fatigue life damage mechanics residual stress impact Motor vehicles. Aeronautics. Astronautics TL1-4050
Zdroj:	Aerospace, Vol 11, Iss 7, p 536 (2024)
Druh dokumentu:	article
ISSN:	11070536 2226-4310
DOI:	10.3390/aerospace11070536
Popis:	The paper investigates the issue of post-impact fatigue damage of the 2060 aluminium–lithium alloy, a representative material of third-generation aluminium–lithium alloys extensively employed in the fuselage of C919 aircraft due to its notable attributes of high specific stiffness and strength. Initial impact damage is identified utilizing a residual stress–strain field obtained from a quasi-static simulation. Then, the continuum damage mechanics approach is applied to predict the fatigue life of the impacted 2060 aluminium–lithium alloy plates accounting for the combined effects of residual stress, plastic damage, and fatigue loading. A comparative analysis between calculated and experimental results is conducted to validate the efficacy of the proposed methodology.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/5b0ee28a2ec24f60a05757cd48ab5c2d Zobrazit plný text záznamu View record in DOAJ