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cavity expansion and cylindrical cavity expansion. This is because more expansion pressure is needed to overcome the influence of shear dilation in initial, and then the strain softening makes the expansion pressure decrease. Furthermore, expansion pressure increases as the dilation disappears and the soil mass compacts gradually. 5 Conclusions 1) The formulations of cavity expansion pressure under......
the normal stress is kept constant by the servo mechanism, this motion feature indicates that shearing dilation occurs in the assembly. 3.4 Distribution of contact forces and macro-micro correlation 3.4.1... and dissipation as well as volumetric dilation. 4.1 Pullout force for 3D geogrids Figure 12 plots the variations of the pullout forces for different 3D geogrids, the variation trend for each curve shown......
that the dissolution of tungsten in the melt is improved under the high casting vacuum. Key words: Fe-based alloys; casting vacuum; dilation; corrosion resistance 1 Introduction During the past few years..., the expansion coefficient of the cylinder in glassy state was calculated by average differential value of the linear part of dilation curve. LK 2005A electrochemical workstation was used for the polarization......
dissipation method of plastic mechanics in limit analysis, numerical results show that the soil dilation angle has an important effect on the seismic bearing capacity for the strip footing on soil slope. When the soil dilation angle keeps constant, the seismic bearing capacity becomes small as the slope angle θ increases. According to the comparisons between Fig.2 and Fig.3 with the same seismic......
sand almost equals zero, the specimen has a trend of vibro- compaction under the cyclic loading, and the water of the specimen is under the compression status. Then, there is a trend of shear dilation... composites is also very short, and the strain demarcation point ε1 is only about 4%. In the third stage, the specimen is also under the state of shear dilation, and the deviator stress q increases......
Zhicheng, XIA Caichu, SONG Yinglong, et al. Analysis of peak dilation strength and model of peak dilation angle for artificial joint[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(s1......
] proposed a simple mathematical model for the interaction analysis of a soil nail and the surrounding soil by taking into account a few key factors, namely the soil dilation, bending of the soil nail... and the boundary conditions are shown in Fig. 10. The soil and rock underneath were modeled by an elasto-plastic model with a Mohr-coulomb failure criterion. No dilation was assumed for the soil and rock. Two......
moving up or down along the differential transformer core(D.T core), which changes the output voltage of transformer, thus the dilation signal was transformed into electric signal. A differential......
angers, which have more tendency of dilation outside. Especially to several grains of them, the trend will be out of control. To inhibit the unwanted grain growth and get fine grains of fibers......
the mobilization of strengths very accurately, which suggests that the proposed hardening functions are reasonable. 4.3 Plastic potential function The non-associated plastic flow rule is adopted. Dilation is introduced into a plastic potential function to avoid excessively large dilatancies. The dilation is defined as changes in volume resulting from shear distortion of an element of materials. The plastic......
