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Variation of hydraulic gradient in nonlinear finite strain consolidationXIE Xin-yu(谢新宇)1, 2, 3, HUANG Jie-qing(黄杰卿)1, 2, 3, WANG Wen-jun(王文军)2, LI Jin-zhu(李金柱)2(1. Research Center of Coastal... is studied for decades. In the consolidation field, hydraulic gradient is yet to be investigated as an important hydraulic variable. So, the variation of hydraulic gradient in nonlinear finite strain......
. The temperature gradient in and near the molten pool is steeper than that in other regions. As a result, the plastic strain produced in and near molten pool should be larger. Fig.4 Temperature field contour...J. Cent. South Univ. Technol. (2010) 17: 666-673 DOI: 10.1007/s11771-010-0538-9 Effect of strain hardening and strain softening on welding distortion and residual stress of A7N01-T4 aluminum alloy......
extrusion through the angular channel. The simulation confirms that a strong strain gradient in the sample material is imposed by the ECAP. Key words: pure aluminum; ECAP; grain refinement; strain...) meanwhile the other side of sample head has no constraint against the die wall, making the fairly high strain gradient in this head area. Fig.9(d) shows the steady-state equivalent plastic strains......
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FEM ANALYSIS OF THERMAL STRESSES IN GRADIENT THERMAL BARRIER COATINGS PRODUCED BY EB-PVD H.B.Xu1,H.B.Guo1,S.K.Gong1 (1.Department of Materials Science & Engineering, Beijing University of Aeronautics andAstronautics, Beijiug 100083, China) Abstract:Gradient thermal barrier coatings (GTBCs) produced by co-deposition of mixtures ofAl-Al2 O3-YSZ onto metallic bond coat exhibited longer lifetimes......
magnetic field. Key words: Leptospirillum ferriphilum; strain YSK; SDS; sucrose density gradient; magnetosomes; magnetotaxis 1 Introduction From 1975, there is much interest in finding magne... particles are isolated from strain YSK by treatment with sodium dodecyl sulfate and centrifugation through a sucrose density gradient. 2) Transmission electron microscopy and the energy profile analysis......
Article ID: 1003-6326(2005)02-0473-05 Higher order asymptotic fields for mode Ⅰ crack in functionally gradient material DAI Yao(戴 耀)1, YAN Xiu-fa(燕秀发)1 (Department of Engineering Mechanics, Academy of Armored Force Engineering, Beijing 100072, China) Abstract: Higher order stress fields for a mode Ⅰ crack perpendicular to the direction of property variation in a functionally gradient......
Effect of plastic deformation on microstructure and hardness of AlSi/Al gradient composites ZHANG Wei-wen(张卫文), LUO Zong-qiang(罗宗强), XIA Wei(夏 伟), LI Yuan-yuan(李元元) School of Mechanical... layers, i.e. the external pure aluminum, internal Al-Si alloy and the transition gradient layer, are maintained after compression as well as rolling processing. With the decrease in thickness......
J. Cent. South Univ. (2020) 27: 963-972 DOI: https://doi.org/10.1007/s11771-020-4344-8 Dynamic response and failure of rock in initial gradient stress field under stress wave loading WENG Lei(翁磊)1... GmbH Germany, part of Springer Nature 2020 Abstract: Once an opening is created in deep underground, the stresses surrounding the opening will be redistributed, inducing a gradient stress field......