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] XUE Y, ELKADIRI H, HORSTEMEYER M F, et al. Micromechanisms of multistage fatigue crack growth in a high-strength aluminum alloy[J]. Acta Materialia, 2007, 55(6): 1975-1984. [19] 陈 军, 段雨露, 彭小燕, 等... University, Changsha 410083, China) Abstract: The influence of intermetallic particles on fatigue behavior of 7020 aluminum alloy profile was investigated by fatigue strength test, fatigue crack growth......
Science and Engineering, Central South University, Changsha 410083, China; 3. China Railway Rolling Stock Corporation Qingdao Sifang Co., Ltd., Qingdao 266000, China) Abstract: The fatigue strength... microscopy(TEM) and scanning electron microscopy(SEM). The results show that when cycle number is 107, the fatigue strength of 7020 aluminum alloy in under-aged, peak-aged and over-aged conditions are 131......
of interrelations between acoustic quality factor and strength of rock salt during fatigue cyclic loadings [J]. Int J Fatigue, 2017, 97: 70-78. DOI: 10.1016/j.ijfatigue.2016.12.027. [31] GERANMAYEH VANEGHI R, FERDOSI... J. Cent. South Univ. (2020) 27: 542-553 DOI: https://doi.org/10.1007/s11771-020-4315-0 Bearing characteristics and fatigue damage mechanism of multi-pillar system subjected to different cyclic......
J. Cent. South Univ. (2016) 23: 1839-1846 DOI: 10.1007/s11771-016-3238-2 Correlation between microstructural features and tensile strength for friction welded joints of AA-7005 aluminum alloy Seyyed...). Microstructural observations reveal the formation of intermetallic phases during the welding process which cannot be extruded from the interface. Theses phases influence the tensile strength of the resultant......
J. Cent. South Univ. (2016) 23: 3256-3261 DOI: 10.1007/s11771-016-3391-7 Coupled effects of stress damage and drilling fluid on strength of hard brittle shale WANG Wei(汪伟), DENG Jin-gen(邓金根), YU Bao... and concentration, which leads to stress damage phenomenon around the borehole. Consequently, drilling fluid will invade into formation along the tiny cracks induced by stress damage, and then weaken the strength......
strength increases, but the fracture strain and fatigue resistance decrease with decreasing foil thickness. Deformation and fatigue damage behavior was characterized. The size effect on tensile...Tensile and Fatigue Properties of Free-Standing Cu FoilsCaiyun Dai, Xiaofei Zhu and Guangping Zhang Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy......
Influence of voids on interlaminar shear strength of carbon/epoxy fabric laminates ZHU Hong-yan(朱洪艳)1, LI Di-hong(李地红)1, ZHANG Dong-xing(张东兴)1, WU Bao-chang(吴宝昌)2, CHEN Yu-yong(陈玉勇)1...: The effects of voids (void content, void shape and size) on the interlaminar shear strength of [(±45)4/(0,90)/(±45)2]S and [(±45)/04/(0,90)/02]S composite laminates were investigated. Specimens......
Effect of inclusion size on the high cycle fatigue strength and failure mode of a high V alloyed powder metallurgy tool steelJun Yao, Xuan-hui Qu, Xin-bo He, and Lin Zhang State Key Laboratory... strength of a high V alloyed powder metallurgy tool steel with two different inclusion size levels, tempered at different temperatures, was investigated by a series of high cycle fatigue tests......
A NOVEL PARAMETER FOR EVALUATING THE FATIGUE CRACK GROWTH RATE IN CARBON STEELS H.Nisitani1,S.Q.Zhu2,N.KAWAGOISHI3,X.S.WANG2 (1.Faculty of Engineering,Kyushu Sangyuo University,Fukuoka,812,Japan... for evaluating the fatigue crack growth rate in carbonsteels.Fatigue crack propagation tests of an annealed 0.42% carbon steel were carriedout under different conditions to investigate the relationship between......
growth threshold value and b1 is the fatigue strength factor, expressed as (8) When a≥ath, the fatigue crack is considered to be in the stable growth stage. 2.1.4 Opening ratio Fatigue cracks.... High-strength steel is often used in marine structures; therefore, the superposition model is chosen as the base model for calculating the corrosion fatigue crack growth rate of the welded joint [31......
