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Effect of Modified Polymer on Crack Resistance of Mortar马保国摘 要:<正>At present, the basic technical principle in China is to adopt polymers to modifying the properties of mortar so as to improve the crack-resistance of construction structures and to strengthen their water-resisting and climate-resisting properties as well. However, how polymer acts......
and Environment Department, Industrial Technology Center of Saga, Saga 849-0932, Japan Received 23 September 2009; accepted 30 January 2010 Abstract: Fatigue strength, crack initiation... strengths were higher for both specimens. In other words, the fatigue crack did not initiate and propagate even though deformation twins were formed in compressive stress under the cyclic tension......
Fatigue crack tip plastic zone of α+β titanium alloy with Widmanstatten microstructureYingjie Ma1,2,Sabry S.Youssef1,2,Xin Feng1,Hao Wang1,2,Sensen Huang1,3,Jianke Qiu1,Jiafeng Lei1,2,Rui Yang1,21... had focused on the fatigue crack propagation behaviors of α+β titanium alloys with Widmanstatten microstructure. The fascinated interest of this type of microstructure is due to the superior fatigue......
Effect of Organophilic Montmorillonite on Thermal-oxidative Aging Behavior of SBS Modified Bitumen Crack Filling Material余剑英Key Laboratory of Silicate Materials Science and Engineering of Education Ministry,Wuhan University of Technology摘 要:Styrene-butadiene-styrene (SBS) modified bitumen crack filling material with organophilic montmorillonite (OCFM......
Preliminary Study to Identify Criterion for Quench Crack Prevention by Computer Simulation Fumiaki Ikuta1,Michiharu NARAZAKI2,Kyozo Arimoto3,Shigeyuki Tamura4,Takashi Horino1,Yoshio Mikita5... results of heat treatment processes.However, these results were insufficient to predict crack generation clearly because the mechanism relates not only to stress distributions in the parts but also......
of crack initiation and propagation in this kind of alloy were revealed. The results show that the fatigue cracks usually initiate at or near the free surfaces of the specimen. And with the increase of the loading stress, the distance between the crack and the surface decreases. The cracks are 250 μm in depth from the surface under strain of 285 MPa, while they are initiated at the free surface......
Modeling and Simulation of Microstructurally Small Crack Formation and Growth in Notched Nickel-base Superalloy ComponentG.M.Owolabi,H.A.WhitworthDepartment of Mechanical Engineering, Howard..., accurate modeling of the influence of these heterogeneous microstructural features on microstructurally small crack formation and growth from stress raisers is necessary. In this work,computational......
In-situ Observation of Crack Growth and Domain Switching Around Vickers Indentation on BaTiO3 Single Crystal Under Sustained Electric FieldBing JIANG1,Meicheng LI11. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,School of Renewable Energy,North China Electric Power University摘 要:The crack propagation and domain......
Influence of grain size on the small fatigue crack initiation and propagation behaviors of a nickel-based superalloy at 650℃Xumin Zhu1,Congyang Gong1,2,Yun-Fei Jia1,Runzi Wang1,Chengcheng Zhang2,Yao... by using single edge notch tensile specimens. The number of main cracks and crack initiation mechanisms at the notch surface strongly depended on the grain size. The crack initiation life accounted......
Effect of gradient temperature rolling process on promoting crack healing in Q500 heavy platesZhao-hai Gao1,2,Wei Yu2,Xu Chen1,Bao-sheng Xie3,Qing-wu Cai11. Collaborative Innovation Center of Steel... rolling process, gradient temperature rolling(GTR) process can effectively increase deformation inside heavy plates. In this study, the effect of GTR on crack healing was analyzed through......
