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constants of β-type Ti1-xNbx and Ti1-xMox alloys using the total energies, a new distorted cell is introduced by imposing deformations on the initial cell. The elastic strain energy is given...; DE is the total energy difference between the distorted and initial cells, V0 the equilibrium cell volume, Cij the elastic constant and ei, j the strain. For the cubic structure, only three elastic......
deformation and instantaneous elastic deformation. Stress relaxation refers to the phenomenon of stress attenuation with the increase of relaxation time when the strain remains unchanged [17]. As shown... with the increase of the relaxation time, resulting in the transformation of all the instantaneous elastic deformation into high elastic deformation. In this process, energy loss is generated due to the need......
with a constant. Saturation reduces the total absorption energy, dissipated energy, and elastic strain energy of rock samples. Key words: post-peak; saturation; strength property; damage mechanism; energy Cite... and plastic deformation of rock samples. Releasable strain energy Ue is stored in rock samples, which is mainly formed at the elastic deformation stage. After the axial load is removed, this part......
and the activation energy. Key words:dynamic strain aging; serrated flow; strain exponent; activation energy; [全文内容正在添加中] ...DYNAMIC STRAIN AGING BEHAVIOR OF K40S ALLOY X.F.Sun1,F.M.Yang1,Z.Q.Hu1,H.R.Guan1 (1.Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016, China) Abstract:The dynamic......
in the plastic deformation stage. In the point of energy conservation law, the temperature rise in shear bands is deduced based on the variation of elastic strain energy. The serrated flow and fracture mechanism of the ZrTiNiCuBe bulk amorphous alloy was revealed. Key words: bulk amorphous alloy; serrated flow; adiabatic temperature rise; elastic strain energy Foundation item: Project (11372142......
, an elastic stress–strain relation is formulated in terms of the second-order and fourth-order crack tensors [37, 40-43] that make it possible to take into account explicitly the effect of joints... consideration, the second-order modified crack tensor is adopted as the theoretical tool to allow the study of the elastic stress–strain relation of the rock mass with multiple persistent joint sets......
at crack tip causes rock burst to happen. Elastic energy attenuation degree and plastic energy change rate were defined. The results show that the maximum value is when strain of loaded coal-rock is , and rock burst happens when elastic energy attenuation degree surpasses the marginal value. The pulse number of electromagnetic radiation is directly proportional to plastic energy change rate......
, compression strength and elastic modulus were discussed according to the analysis of test results. The results show that critical strain energy release rate decreases and then increases.... Release rate of critical strain energy increases with the increase of compression strength and elastic modulus. The curve of release rate-compression strength of critical strain energy and the curve......
; Influences of strain softening and seepage on elastic and plastic solutions of circular openings..., there may be three stress regions such as elastic region, plastic softening region and plastic residual region. According to this division, several calculation methods and models considering strain......
of calculating the energy in the process of breaking was presented, and the relationship between the strain and elastic energy and dissipation energy was also analyzed. The results show that the number...; (4) (5) 图2 应力-应变曲线中Ud与Ue之间的关系图 Fig. 2 Relationship between dissipated energy and elastic strain energy in stress-strain curves 式中......
