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ratio on stresses field of HDA/PEO coatings subjected to uniform normal contact load was investigated by finite element method. Results show that the surface tensile stress is mainly affected by the thickness ratio of Al layer when the total thickness of coating is unchanged. With the increase of Al layer thickness, the surface tensile stress rises quickly. When Al2O3 layer thickness increases......
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. (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......
-dynamic coupling stress WU Xing-yu(吴星宇), JIANG Li-shuai(蒋力帅), XU Xing-gang(徐兴港), GUO Tao(郭涛), ZHANG Pei-peng(张培鹏), HUANG Wan-peng(黄万朋) State Key Laboratory of Mining Disaster Prevention and Control... coal mine roadways are often under typical static-dynamic coupling stress (SDCS) conditions with high ground stress and strong dynamic disturbances. With the increasing number of disasters and accidents......
. A parallel bond is active over a finite area and can resist the rotation of particles. When the normal or shear stress exceeds the bond strength, the parallel bond is broken and the "cement" is removed...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......
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......
J. Cent. South Univ. Technol. (2011) 18: 1304-1310 DOI: 10.1007/s11771-011-0837-9 Stress and deformation due to embankment widening with different treatment techniques WANG Hao(汪浩)1, HUANG Xiao... ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: A two-dimensional (2-D) finite element (FE) model was developed to analyze the deformation and stress......
): 93-110. [3] PETIT J P. Normal stress dependent rupture morphology in direct shear test on sandstone with applications to some natural fault surface features [J]. Int J Rock Mech Min Sci & Geomech...J. Cent. South Univ. Technol. (2008) 15(s1): 496-499 DOI: 10.1007/s11771-008-408-x Experimental study on time-dependent stress and strain of in-plane shear (ModeⅡ) fracture process of rock WANG......
and the maximum friction coefficient increased first and then decreased, while the maximum normal displacement decreased monotonously. Compared with CNL conditions, the maximum shear stress was larger, whereas the maximum normal displacement and friction coefficient were smaller under the CNS conditions. Furthermore, more asperity damage was observed under the CNS conditions due to the increased normal stress......
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......