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Mathematical Model and Theoretical Research of Flow Shear Constitutive Relation during Rheo-rolling of Semisolid Alloy赵占勇1,管仁国1,2,3,WEI Qing1,ZHANG Yang1,XU Guangming1,LI Yuandong21. Key Laboratory..." name="ChDivSummary">The mathematical model of flow shear constitutive relation during rheo-rolling process has been established. The distribution of velocity and shear stress in rolling cavity......
; stress-strain relation; seepage-stress coupling; constitutive model; coefficient of permeability  ...J. Cent. South Univ. Technol. (2009) 16: 0149-0153 DOI: 10.1007/s11771-009-0025-3 Seepage-stress coupling constitutive model of anisotropic soft rock ZHANG Xiang-xia(张向霞)1, 2, YANG Lin-de(杨林德)2......
effect on the compressive stress parallel to the direction of pores. Key words: lotus-type porous metal; unidirectional solidification; deformation behaviors; constitutive relation  ...分类号:TG146;TG115 文献标识码:A Axial compressive deformation behaviors and constructive relation for lotus-type porous copper YAO Di, LIU Xin-hua, LIU Xue-feng......
metallic glass; super-plasticity; constitutive relation 由于大块非晶合金(BMG)在过冷区域表现出良好的超塑性性能, 因而有望通过塑性加工方法来制造非晶质的复杂结构精细零部件, 促进BMG材料的广泛应用[1, 2]. 为了确定BMG合理的超塑性成形温度, 应变速率等工艺参数, 需要通过大量拉伸或压缩实验来研究合金在不同温... temperatures and punch velocities were investigated by the small punch test. Based on SPT load-displacement curves and combined with theoretical analysis, a method for determining super-plastic constitutive......
to the differential settlement of the foundation is neglected, which leads to larger support moments and longitudinal bending of raft compared with real values. The spring constitutive relation of composite... settlements are considered. This can be references to the design of raft foundation in similar regions.Key words:spring constitutive relation; composite foundation; raft; interaction......
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; Constitutive analysis of AZ31 magnesium alloy... as strain rate was analyzed. The materials parameters and the apparent activation energy were calculated. The constitutive relationship was established with a Zener-Hollomon (Z) parameter. The results show......
dimensional nonlinear state were derived based on damage structure and constitutive relation of common bedded composite rock[2]. Rock was considered a quasi-lamellar structure material and simplified...; (17) Eqn.(17) is the constitutive relation of the statistical damage model. Generally, the rock with cracks induces brittle failure at the beginning, and its inner friction......
and the constitutive relation involving the void evolution. By assuming the voids in casting magnesium alloys were spherical, the growth equation of the voids was obtained from the incompressibility... Constitutive model for casting magnesium alloy involving spherical void evolution CHEN Bin(陈 斌), PENG Xiang-he(彭向和), FAN Jing-hong(范镜泓), SUN Shi-tao(孙士涛) Department of Engineering Mechanics......
-elastic constitutive model was investigated. The basic equations of the problem were built up based on the framework of piecewise homogeneous body model with the use of three-dimensional linearized theory... relation between phase velocity and wave number in opposite trend (positive in initial pressure and negative in thickness).Key words:initial pressure; TLTEWISB; first power hypo-elastic model; dispersive......