1,230 Result(s)
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Article
Yi**g Yong
Classical Mechanics
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Article
Stress corrosion cracking of Al-Zn-Mg alloy AA-7039 by slow strain-rate method
The stress corrosion behaviour of Al-Zn-Mg alloy AA-7039 in an aqueous 3.5 wt % Nad solution (pH=1) was studied with the specimens under constant strain rate as function of ageing state and cold working. The t...
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Representing general solution of equations in theory of elasticity by harmonic functions
The general solution of the equations in the theory of elasticity is represented by seven harmonic functions, where there are only three harmonic functions independent of each other and every one of them has c...
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Contradiction of Jk integral
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A new quadrilateral nonconforming model and its convergence
This paper presents a new quadrilateral nonconforming finite element. We deal with its convergence by using generalized patch test T error on stresses and displacements are obtained and numerical computations ...
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Effect of Al2O3 on retaining tetragonal particles in Y-PSZ ceramic matrix
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Complex variable function method fob hole shape optimization in an elastic plane
In this paper, a complex variable function method for solving the hole shape optimization problem in an elastic plane is presented. In this method, the stresses in hole problems are analysed by taking advantag.....
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Optical energy gaps of In2−x Ga x S3 thin films prepared by spray pyrolysis
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On the positive definiteness of a class of operators
In this paper, a proof of the positive definiteness for a class of operators is given. The operators considered are general enough to include those in two- and three-dimensional elasticity, thin plates and she.....
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A discussion on “representing general solution of equations in theory of elasticity by harmonic functions”
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The phase transformations and structure of Cu83.34Pt16.66 alloy
The structure and phase transformation of Cu83.34Pt16.66 alloy have been investigated by X-ray diffraction, TEM, differential thermal analysis, and measurements of electrical resistance and hardness. It was found...
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A computer model of pulse wave and input impedance in human arteries
To predict the propagation of pressure and flow pulses in arterial system and the variation of vascular input impedance, a branched and tapered tube model is studied through one-dimensional transient flow anal...
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Formation of solid-liquid interface in ferroelectric particle dispersion and its effect on the dispersion stability
A model has been proposed for the formation of the ferroelectric solid-liquid interface in the non-electrolyte dispersion system. Bulk properties as well as the surface properties of the dispersing solid could...
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On the objective stress rate in co-moving coordinate system
The objective stress rate is a rather important problem in mechanics of finite deformation. In this paper, the objective stress rate in co-moving coordinate is derived by applying nonlinear geometric field the.....
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A numerical model of left ventricle and aortic valve function of its afterload (I)
Due to the study of the function of heart and aortic valve, we set up a physical model of left ventricle, aortic valve and afterload and derive theoretical equation of each part from the model. Then we calcula.....
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Quasi-periodic waves and quasi-solitary waves in stratified fluid of slowly varying depth
The nonlinear waves in a stratified fluid of slowly varying depth are investigated in this paper. The model considered here consists of a two-layer incompressible constantdensity inviscid fluid confined by a s.....
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The effect of whisker length on the mechanical properties of alumina-SiC whisker composites
Silicon carbide whisker (20v/o)-reinforced alumina composites with various whisker lengths were prepared by hot pressing, then the dependences of whisker length on flexural strength and fracture toughness of t...
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The asymptotic expansions of singularly perturbed boundary value problems
In this paper we study the singularly perturbed boundary value problem: ɛy″=f(t,y,ɛw), y(0)=ξ(ɛ), y(1)=η(ɛ), where ɛ is a positive small parameter. In the conditions: fy(0,y,0)⩾m0, fy(1,y,0)⩾m0 and fy(t,y,e)⩾0, w...
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HREM study of atomic image of single crystal indium phosphide
This paper reports some experimental results of high resolution electron microscopy (HREM) studies on single crystal indium phosphide (InP) along the [0 0 1] zone axis. Using 400 kV electrons, with defocus val...
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Numerical investigation of three-dimensional viscous incompressible flows in divergent curved channels and turbulent model study
In order to make the numerical calculation of viscous flows more convenient for the flows in channel with complicated profile governing equations expressed in the arbitrary curvilinear coordinates were derived...
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On uniform convergence of linear operators on the probabilistic normed space
In this paper, we introduced the notion of uniform convergence of the linear operators on the probabilistic normed space, and the notion of probabilistic distance between the operators, which describes the abo...
