Fracture mechanism on Al-Li alloy T-joint welded by dual laser-beam bilateral synchronous welding

Dual laser-beam bilateral synchronous welding technique is considered to replace riveting in terms of skin–stringer joints. The 2.0-mm thick Al-Li alloy T-joint, which is welded by dual laser-beam bilateral synchronous welding between 2099-T83 stringer and 2060-T8 skin, is investigated in the curren...

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Veröffentlicht in:	Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture Journal of engineering manufacture, 2019-08, Vol.233 (10), p.2074-2088
Hauptverfasser:	Zhan, Xiaohong, Xia, Ling, Wu, Youfa, Yu, Haisong, Feng, Xiaosong, Xia, Peiyun
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum base alloys Aluminum-lithium alloys Computer simulation Finite element method Fracture mechanics Laser beam welding Lasers Mechanical properties Microhardness Residual stress Riveting Scanning electron microscopy Stress concentration Stringers Tensile strength Tensile tests Three dimensional models Welded joints
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