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Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China)Abstract:The influence of brazing time on the shear strength of SiC/6061Al joints was carried out by scratching to break the oxide films on the matrix. The result shows when using 65.12Zn-20.82Al-12.05Cu-1.20Mg-0.17Mn, the shear strength of the joint is up to 70.8MPa; when using 93Zn-2.5Al-4.5Ag-0.15Si, the shear......
J. Cent. South Univ. Technol. (2008) 15(s1): 316-321 DOI: 10.1007/s11771-008-371-6 Prediction of shear bands in sand based on granular flow model and two-phase equilibrium ZHANG Yi-tong(张义同)1... interpretation of shear bands in sand as a bifurcation problem in continuum mechanics, shear bands in sand are considered as high-strain phase (plastic phase) of sand and the materials outside......
, and shear strength parameters for red-sandstone with different water contents,different compactions, and different grain size distributions were obtained from the tests. A practical procedure of in-situ test... of slopes made of granular material-clay mixtures by laboratory direct-shear strength tests, and found that their shear strength would depend upon the relative concentrations of the large particles......
Microstructure and shear strength of the brazed joint of Ti(C,N)-based cermet to steelYE Dameng, XIONG Weihao, Zhang Xiuhai, QU Jun, and YAO Zhenghua State Key Laboratory of Plastic Forming... cermet and steel with Ag-Cu-Zn-Ni filler metal by vacuum brazing. The effects of technological parameters such as brazing temperature, holding time, and filler thickness on the shear strength of the joints......
(JRC) and joint matching coefficient (JMC) drop with shearing, and the shear strength of rock joints can be predicted by the JRC-JMC model. It establishes the relationship between micro-topography and macroscopic strength, which have the same change rule with shearing.Key words:rock joint; shear behavior; surface morphology; acoustic emission; joint roughness coefficient (JRC); joint matching......
and binding bars is under multi-axial compression; therefore, its shear strength was calculated by using the Guo-Wang concrete failure criterion. The shear strength of the steel plates of SCBs was calculated... mechanical properties (strength, stiffness and ductility). According to the position relationship between the steel plate and the concrete [1], the steel plate RC shear wall can be roughly divided......
discrimination in the details of soil-rock segmentation. The existence and random distribution of rock blocks make the initial shear stiffness, the peak strength and the residual strength higher than those of the "pure soil" with particle size less than 1.25 cm apparently, but reduce the displacements required for the talus deposits reaching its peak shear strength. The increase of rock proportion causes......
fillers on interfacial microstructure and shear strength were studied. And the optimum joining parameters were given. The brazed joints were qualitatively and quantitatively analyzed by means of EPMA, SEM and XRD. The results show that using brazing filler NiCrSiB, TiAl3, AlNi2Ti and Ni[s,s] are formed at the interface of joint, and the formation of Ti3Al and AlNi2Ti decreases the shear strength. Using......
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[15-23]. The results showed that shear strength increases with the increase of joint roughness, bolt diameter and rock strength, and varies with the bolt type and bolt profiles. Rock bolts installed... was directly encapsulated into joint specimens without grouting material when the bolt is inclined [16, 22]. They found that the peak shear strength occurs at an initial inclination to the joint in the range......
