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. Further, as shown in Fig.7(c), it increased more after fracture. As previously stated in section 3.2, the cyclic stress response to fatigue at 1.0% strain exhibited cyclic hardening until final fracture (Fig.3), which was caused by the increase of the dislocation density. Fig.7 Variation of dislocation density during fatigue at ?ε/2=1.0%: (a) Before fatigue; (b) After 100 cycles; (c) After......
; 文献标志码:A 文章编号:1672-7207(2021)07-2386-08 A unified evaluation method for intermediate and low temperature fracture performance of asphalt concrete SONG Weimin, XU Zihao, WU Hao, XU Fei, ZHAN Yiqun (School of Civil Engineering, Central South University, Changsha 410075, China) Abstract: To evaluate the fracture toughness of asphalt concrete......
of containing 1.0%Nd.The fatigue fracture surfaces of test specimens showed the mixed-fracture characteristics of quasi-cleavage and dimple.The fatigue step,trans-granular and along-granular cracks...Influence of neodymium on high cycle fatigue behavior of die cast AZ91D magnesium alloy杨友,李雪松Key Laboratory of Advanced Structural Materials,Ministry of Education,Changchun University of Technology摘......
of containing 1.0%Nd.The fatigue fracture surfaces of test specimens showed the mixed-fracture characteristics of quasi-cleavage and dimple.The fatigue step,trans-granular and along-granular cracks...Influence of neodymium on high cycle fatigue behavior of die cast AZ91D magnesium alloy杨友,李雪松Key Laboratory of Advanced Structural Materials,Ministry of Education,Changchun University of Technology摘......
steel[J]. Engineering Fracture Mechanics, 2015, 144: 1-15. [19] ZHU M L, XUAN F Z, WANG G Z. Effect of microstructure on fatigue crack propagation behavior in a steam turbine rotor steel[J]. Materials...]. Intermetallics, 2010, 18(1): 161-172. [7] 孙 才. 高温热暴露的γ-TiAl基合金表面微裂纹萌生行为与疲劳寿命的研究[D]. 成都: 西南交通大学, 2013. SUN Cai. Study of surface microcrack initiation and fatigue life for a thermal-exposured γ-TIAL based alloy[D......
-cycle fatigue properties and fracture behavior of Ti-5Al-5Mo-5V-1Cr-1Fe titanium alloy [J]. Rare Metal Materials and Engineering, 2018, 47(12): 3666-3671. [4] FU Yu-can, Ge Ende, SU Hong-hua, XU Jiu... Bo, LI Chen. Fatigue fracture characteristics of high-strength 7050-T7451 aluminum alloy thick plates[J]. Materials for Mechanical Engineering, 2013, 37(06): 26-30. Effect of hole extrusion on fatigue......
Low-cycle Fatigue Behaviors of an As-extruded Mg-12%Gd-3%Y-0.5%Zr AlloyS.M.Yin1,S.X.Li21. Shenyang University of Chemical Technology2. Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences摘 要:<正>Cyclic deformation and fatigue behaviors of Mg-12%Gd-3%Y-0.5%Zr(wt%,GW123K) alloy were investigated......
fatigue strength and crack propagation rate. On the other hand, new methods were proposed based on fractal dimension [19] or fracture mechanics [20-22]. Relevant analytical softwares, such as NASGRO... experiment. Moreover, an entire region FCP model based on fracture mechanics was formulated to predict the fatigue life of pre-corroded aluminium alloy. The predicted results were eventually verified......
两种不同冶金工艺生产的60Si2CrVA弹簧钢的高周疲劳性能郝立群1,2,惠卫军2,项金钟0,惠荣3,翁宇庆1(1.云南省昆明市云南大学物理科学技术学院2.北京市钢铁研究总院先进钢铁材料技术国家工程研究中心3.江阴兴澄特种钢铁有限公司,江苏江阴 214429)摘 要:采用旋转弯曲疲劳试验研究了两种不同冶金工艺生产的60Si2CrVA弹簧钢的高周疲劳破坏行为.结果表明,尽管两种试验料的氧含量接近,但两者夹杂物特征的差异使其疲劳性能存在明显的差异.与采用电炉+LF+VD+CC工艺生产的X8料相比,采用转炉+LF+R......
Finite element analysis of contact fatigue and bending fatigue of a theoretical assembling straight bevel gear pairDENG Song(邓松), HUA Lin(华林), HAN Xing-hui(韩星会), HUANG Song(黄松)(School of Automotive... of a theoretical assembling straight bevel gear pair to analyze the contact fatigue on the tooth surface and the bending fatigue in the tooth root. Based on the cumulative fatigue criterion and the stress-life......
