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J. Cent. South Univ. Technol. (2008) 15(s1): 402-405 DOI: 10.1007/s11771-008-388-x In-plane shear (ModeⅡ) crack sub-critical propagation of rock at high temperature RAO Qiu-hua(饶秋华), XIE Hai-feng(谢海峰), XIE Qiang(谢 强) (School of Civil Engineering and Architecture, Central South University, Changsha 410083, China) Abstract: In-plane shear crack sub-critical propagation of rock at high......
INVESTIGATION OF THE LOW-CYCLE FATIGUE AND FATIGUE CRACK GROWTH BEHAVIORS OF P91 BASE METAL AND WELD JOINTS M.M.Yu1,H.C.Yang1,Y.Tu1,J.Zhao2 (1.Dongfang Boiler (Group;2.Department of Materials Engineering, Dalian University of Technology, Dalian 116023, China) Abstract:Low cycle fatigue tests and crack growth propagations tests on P91 pipe base metal and its weld joints were conducted at three......
is smaller. (6) The effect of crack water on slope stability can be expressed as: (a) propagating cracks and form sliding surface by hydrostatic pressure; (b) softening sliding surface by seepage flow... mechanics, the propagation of cracks on rock slope and the development of sliding surface were researched. Then based on hydraulics formulas and using Sweden arc method, the influence of crack water......
CREEP CRACK GROWTH BEHAVIOR OF ALLOY 718 DURING HIGH TEMPERATURE EXPOSURE Y.P.Zeng1,X.S.Xie1,J.X.Dong1,M.C.Zhang1 (1.Department of Material Science, University of Science and Technology Beijing... crack growth rate(CCGR) was investigated after high temperature exposure at 593, 650 and 677℃ for 2000h inAlloy 718. In addition to the coalescence of γ''/ γ" and the amount increasing of δ phase......
Testing study of subcritical crack growth rate and fracture toughness in different rocks CAO Ping(曹 平), LI Jiang-teng(李江腾), YUAN Hai-ping(袁海平) School of Resources and Safety Engineering...; Abstract: Subcritical crack growth of double torsion specimens made of ore, lherzolite, marble and granite was studied using Instron1342 type electro hydraulic......
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A GENERAL CONSTITUTIVE RELATION FOR FATIGUE CRACK GROWTH ANALYSIS OF METAL STRUCTURES W.C.Cui1,X.P.Huang1 (1.School of Naval Architecture & Ocean Engineering, Shanghai Jiaotong University, Shanghai 200030, China) Abstract:Crack growth rate curves are the fundamental material property for metal structures under fatigue loading. Although there are many crack growth rate curves available......
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