共搜索到18104条信息，每页显示10条信息，共1811页。用时：0小时0分0秒833毫秒
levels of horizontal stress are determined according to the common lateral pressure coefficient (ratio of the maximum horizontal stress to the vertical principal stress, 0.6-1.4) according... for the plastic failure ratio of the ribs and the floor are the same as those of the ribs and the floor under different horizontal stress conditions. According to Figure 6, during the process......
J. Cent. South Univ. (2016) 23: 1293-1300 DOI: 10.1007/s11771-016-3179-9 Effect of Nb content on microstructure stability and stress rupture properties of single crystal superalloy containing Re..., 1.0%Nb were cast in the directionally solidified furnace, while other alloying element contents were basically kept unchanged. The effect of Nb on the microstructure, stability at 1100 °C and stress......
J. Cent. South Univ. (2017) 24: 2406-2420 DOI: https://doi.org/10.1007/s11771-017-3652-0 Failure behavior around a circular opening in a rock mass with non-persistent joints: A parallel-bond stress...: The stability of underground excavations is influenced by discontinuities interspaced in surrounding rock masses as well as the stress condition. In this work, a numerical study was undertaken......
J. Cent. South Univ. (2019) 26: 3140-3155 DOI: https://doi.org/10.1007/s11771-019-4242-0 Determination of initial cable force of cantilever casting concrete arch bridge using stress balance... to obtain reasonable initial cable force in construction stage. In this study, stress balance and influence matrix methods were developed to determine the initial cable force of cantilever casting concrete......
J. Cent. South Univ. (2018) 25: 185-195 DOI: https://doi.org/10.1007/s11771-018-3728-5 Numerical investigation of temperature gradient-induced thermal stress for steel–concrete composite bridge...) with realistic field measurements of temperature distributions is proposed to investigate the thermal stress variation in the steel–concrete composite bridge deck system. First, a brief literature review......
. At the same time, the magnitude of von Mises stress also declines in the case of thicker coatings. However, the high elastic modulus ratio results in extremely high maximum shear stress and the severe... at x=a are shown in Fig.7. It can be obviously seen that the coating with higher ratio is subjected to the more intensive maximum shear stress, although the interface of the coating with higher elastic......
Discussion and prediction on decreasing flow stress scale effect SHEN Yu(申 昱), YU Hu-ping(于沪平), RUAN Xue-yu(阮雪榆) National Die and Mold CAD Engineering Research Center, Shanghai Jiaotong... theory and surface layer model, relation of flow stress to billet dimension and grain size was built, and rationality of derived relation was verified with tensile tests of different size billets......
is the ratio of shear strength to the maximum shear stress. According to the Mohr-Coulomb strength criterion, the shear strength of the pillar (τf) on the sliding shear plane can be obtained. Under the action... is the shear stress on the shear plane; τfis the shear strength on the shear plane; c is the cohesion of rock body. 3.3 Comprehensive safety factor The comprehensive safety factor is the ratio......
Magnesium stress corrosion cracking N. Winzer1, A. Atrens1, 2, W. Dietzel3, G. Song1, K. U. Kainer3 1. Materials Engineering, The University of Queensland, Brisbane, Australia 2. Swiss Federal...> Abstract: The significant positive green environment influence of magnesium alloy usage in transport could be compromised by catastrophic fast fracture caused by stress corrosion cracking (SCC......
, the noise amplitudes increase with increasing stress and accelerating corrosion, the white noises at low and high frequencies (WL and WH) of the later stage are one order of magnitude larger than... of probability distribution, surface morphology and potential distribution. Key words: 304 stainless steel; fatigue pre-cracking; electrochemical noise; stress corrosion cracking (SCC); scanning Kelvin......
