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of concrete leads to a stronger restraint against shrinkage and a higher shrinkage stress formation in local concrete. The relationship between shrinkage strain and reduction of relative humidity...Influences of Reinforcement on Differential Drying Shrinkage of Concrete高小建School of Civil Engineering, Harbin Institute of Technology摘 要:Shrinkage strain......
to the superposition principle, when considering the effects of the shrinkage and creep of concrete, the typical relationship between stress and strain in concrete can be expressed as follows:  ... stress reduces the values caused by concrete shrinkage and creep; (2) The relaxation curve slope of prestressed reinforcement with a variable length is the same as that of the initial tension control......
, analyzed from the surface movements, roof subsidence and the maximum principal stress of the pillars, the mining safety is probable of being ensured. Key words: shrinkage stoping mining; cement-sodium...J. Cent. South Univ. (2017) 24: 2924-2931 DOI: https://doi.org/10.1007/s11771-017-3706-3 Pre-reinforcement grout in fractured rock masses and numerical simulation for optimizing shrinkage stoping......
tensile stress, the maximal energy to failure, section shrinkage rate, elongation, test time and so on. By calculating the ratios of parameters in Table 1, the results are obtained as listed in Table... Stress corrosion cracking susceptibility of 7A52 aluminum alloy ZHAO Jun-jun(赵军军), WANG Wei-xin(王卫欣), CAI Zhi-hai(蔡志海), ZHANG Ping(张 平) Institute of Remanufacture Engineering, Academy......
Temperature and stress fields of multi-track laser cladding ZHAO Hong-yun (赵洪运), ZHANG Hong-tao(张洪涛), XU Chun-hua(徐春华), YANG Xian-qun(杨贤群) School of Materials Science and Engineering... on the temperature fields and stress fields of multi-track laser cladding were carried out by using the ANSYS software. The results show that, in the multi-track cladding process, the temperature field ellipse......
(FGC) segment, which were the concrete cover and the concrete structure layer, showed better compatibility and the tension stress of interface layer, which was resulted from the shrinkage of concrete...Finite Element Analysis of Shrinkage in the Interface of Functionally Graded Concrete Segment Used in Shield Tunneling高英力摘 要:<正>In functionally......
Diffusion behavior at void tip and its contributions to void shrinkage during solid-state bondingC.Zhang1,2,3,M.Q.Li1,2,H.Li1,21. School of Materials Science and Engineering,Northwestern... at void tip,but the perfect bond has yet formed.The diffusion region was attributed to the interface diffusion from adjacent region to void tip due to the stress gradient along bonding interface.The mass......
and higher aspect ratio of gelcast green bodies increase the drying rate. Increasing the ethanol concentration decreases the shrinkage rate. Liquid drying stress is generated due to a non-uniform... to compressive stress. Key words: BeO; gelcasting; green body; liquid desiccant; ethanol; drying rate; shrinkage rate; drying stress 1 Introduction Gelcasting is a near net shape technique......
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of Jinping-I high arch dam shows good agreements between the calculated and observed displacements. The compressive stress used throughout this work is negative while valley width shrinkage... J. Cent. South Univ. (2018) 25: 218-229 DOI: https://doi.org/10.1007/s11771-018-3731-x Effective stress law for rock masses and its application in impoundment analysis based on deformation......