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stress at both ends of the specimen. The first crack was oriented at 50° from the horizontal direction and kept constant throughout the analysis while the orientation of the second crack was changed... to study the effect of confining pressure on the crack propagation process, showing that the SIFs increase and the crack initiation angles change in this case.Key words:crack propagation; crack......
Prediction of Cold Dwell-Fatigue Crack Growth of Titanium AlloysKe Wang1,Fang Wang2,Wei-Cheng Cui2,A.-Li Tian31. School of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University2... fatigue life prediction method developed by the authors’ group is modified in this paper to predict dwell-fatigue crack growth taking into account the effects of dwell time and maximum stress......
The effect of crack tip environment on crack growth behaviour of a low alloy steel at cathodic potentials in artificial seawaterYong Li1,Zhiyong Liu1,2,Endian Fan1,Zhongyu Cui3,Jinbin Zhao1,41... at crack tip and its effect on the crack growth behaviour of low alloy steel-E690 steel were studied at cathodic potentials in artificial seawater. The results showed that the micro environment......
of the compression fracture, the length range of crack fracture in different stress states was solved, the mathematical expectation of crack length was calculated by probability statistics... coefficient and angle on rock strength. When the friction coefficient is 0, the corresponding angle of minimum strength of rock is 45°. With the increase of the friction coefficient, the crack angle......
Carbide Effects on Creep Crack Growth of Ni-Cr Austenitic Steels祝苏明,朱世杰,王富岗,张俊善摘 要:<正> By controlling the carbon content ofFe-15Cr-25Ni alloys,three types ofmicrostructures were obtained:single phaseaustenite (γ),γ+intergranular carbides,γ+intergranular carbides + intragranular carbides.Creep crack growth behaviour of the three alloyshas been......
Impact Energy of Functionally Graded Steels with Crack Divider ConfigurationAli Nazari,Jamshid Aghazadeh MohandesiDepartment of Mining and Metallurgical Engineering, Amirkabir University.... Charpy impact energy of as-prepared specimens was measured in the form of crack divider. The obtained results show that the impact energy of the specimens depends on the type and the volume fraction......
; Longitudinal crack on slab surface...; longitudinal crack; finite element method  ......
the Realistic Failure Process Analysis program. With the increase of homogeneity, cracks are concentrating to the ligament area with a decreasing number of crack bifurcations, and the main crack path is becoming smooth. Crack behaviors and mechanical properties are influenced significantly when the homogeneity index is in the range of 1.5 to 5. When the homogeneity index is greater than 30......
Effect of Stress Ratio on the Fatigue Crack Propagation Behavior of the Nickel-based GH4169 AlloyShen Ye1,Jian-Guo Gong1,Xian-Cheng Zhang1,Shan-Tung Tu11. Key Laboratory of Pressure Systems and Safety, Ministry of Education, School of Mechanical and Power Engineering,East China University of Science and Technology摘 要:The fatigue crack growth behavior......
Article ID: 1003-6326(2005)02-0457-03
Finite element analysis of stresses and interface crack in TBC systems
CHEN Xiao-mei(陈晓梅), ZHANG Yue(张 跃), GONG Sheng-kai(宫声凯)
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