International Journal of Fatigue 108 (2018) 62–67 Contents lists available at ScienceDirect International Journal of Fatigue journal homepage: www.elsevier.com/locate/ijfatigue Fatigue life of 7075-T651 aluminium alloy treated with vibratory stress relief a a a, b c Hanjun Gao , Yidu Zhang , Qiong Wu , Jing Song , Kai Wen State Key Laboratory of Virtual Reality Technology and Systems, School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China Beijing Institute of Aerospace Systems Engineering, Beijing 100076, China Huazhong Institute of Electro-Optics, Wuhan National Laboratory for Optoelectronics, Wuhan 430223, China ARTICLE I NFO ABSTRACT Keywords: As an energy-saving and high-eﬃcient stress relieving process, vibratory stress relief (VSR)’sinﬂuence of on Fatigue life fatigue life is still explicit and needs further investigation. Standard specimens are manufactured to study the 7075-T651 aluminium alloy VSR eﬀects on 7075-T651 aluminium alloy fatigue behaviour. Dynamic stresses generated during vibration are Vibratory stress relief measured by strain gauge, and the residual stresses with and without VSR are compared to validate the stress Vibration amplitude relieving eﬀects. Eventually, fatigue tests are conducted to obtain the fatigue behaviour of 7075-T651 alumi- Residual stress nium alloy treated by VSR with diﬀerent amplitudes. Experimental results show
International Journal of Fatigue – Elsevier
Published: Mar 1, 2018
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