G. Y. Zhang

Southeast University

Bending of platesElasticity (economics)PhysicsElasticity (physics)Mathematical analysisEquations of motionComposite materialPlate theoryBeam (structure)Band gapBoundary value problemMaterials scienceSurface energyCouple stressMathematicsBloch waveMechanicsClassical mechanicsNatural frequencyMicrostructure

28Publications

9H-index

244Citations

Publications 36

On the reduction of stress concentrations in thick-walled hollow spheres under an arbitrary uniform axial symmetric outer traction

#1Chenyi Zheng (SEU: Southeast University)H-Index: 3

#2G. Y. Zhang (SEU: Southeast University)H-Index: 9

Last. Changwen Mi (SEU: Southeast University)H-Index: 2

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Abstract null null This paper presents an analytical solution for a thick-walled hollow sphere interiorly reinforced by a soft graded layer subjected to an arbitrary uniform axial symmetric outer traction. The elastic modulus of the graded reinforcement is assumed to vary through its thickness as a power-law function. The resultant inhomogeneous Navier’s equations of equilibrium are in the form of a system of second-order differential equations of the Euler type. The differential system is subse...

On the Bending and Vibration Analysis of Functionally Graded Magneto-Electro-Elastic Timoshenko Microbeams

#1Jun Hong

Last. Changwen MiH-Index: 2

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In this paper, a new magneto-electro-elastic functionally graded Timoshenko microbeam model is developed by using the variational formulation. The new model incorporates the extended modified couple stress theory in order to describe the microstructure effect. The power-law variation through the thickness direction of the two-phase microbeams is considered. By the direct application of the derived general formulation, the static bending and free vibration behavior of the newly developed function...

Magnetically induced electric potential in first-order composite beams incorporating couple stress and its flexoelectric effects

#1G. Y. Zhang (SEU: Southeast University)H-Index: 9

#2Yilin Qu (Xi'an Jiaotong University)H-Index: 3

Last. Feng Jin (Xi'an Jiaotong University)

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A new model of a first-order composite beam with flexoelectric and piezomagnetic layers is developed. The new model is under a transverse magnetic field and can capture the couple stress and its flexoelectric effects. The governing equations are obtained through a variational approach. To illustrate the new model, the static bending problem is analytically solved based on a Navier’s technique. The numerical results reveal that the extension, deflection, and shear deformation of the current or co...

Band gaps for elastic flexural wave propagation in periodic composite plate structures with star-shaped, transversely isotropic, magneto-electro-elastic inclusions

#1G. Y. Zhang (SEU: Southeast University)H-Index: 9

#2W. Shen (Chongqing University)

Last. Z.-Q. Xin (Hohai University)

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A new model for predicting elastic flexural wave band gaps in periodic composite plate structures containing interconnected, star-shaped, transversely isotropic, magneto-electro-elastic (MEE) inclusions is developed using a microstructure-dependent Mindlin plate model. The Floquet–Bloch theorem and the plane wave expansion method for periodic media are employed to solve the non-classical wave equations and to determine the band gaps incorporating the microstructure effect. The current non-classi...

Isogeometric analysis of size-dependent Bernoulli–Euler beam based on a reformulated strain gradient elasticity theory

Abstract null null In this paper, we present an efficient and accurate numerical approach for static bending and free vibration analyses of microstructure-dependent Bernoulli-Euler beams. The current approach includes strain gradient, couple stress (rotation gradient) and velocity gradient effects simultaneously through a reformulated strain gradient elasticity, which applies only one material parameter for each gradient effect. Based on the Hamilton’s principle and an Isogeometric Analysis (IGA...

Tunable Bandgaps in Phononic Crystal Microbeams Based on Microstructure, Piezo and Temperature Effects

#1Jun Hong

Last. Changwen MiH-Index: 2

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A new model of non-classical phononic crystal (PC) microbeam for the elastic wave bandgap generation is provided, incorporating microstructure, piezomagnetism, piezoelectricity and temperature effects. The wave equation of a general magneto–electro–elastic (MEE) phononic crystal microbeam is derived, which recovers piezoelectric- and piezomagnetic-based counterparts as special cases. The piezomagnetic and piezoelectric materials are periodically combined to construct the PC microbeam and corresp...

#1Jun Hong (SEU: Southeast University)

#2Zhuangzhuang He (SEU: Southeast University)

Last. Changwen Mi (SEU: Southeast University)H-Index: 2

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A new model is proposed for determining the band gaps of flexural wave propagation in periodic fluid-filled micropipes with circular and square thin-wall cross-sectional shapes, which incorporates temperature, microstructure, and surface energy effects. The band gaps depend on the thin-wall cross-sectional shape, the microstructure and surface elastic material constants, the pipe wall thickness, the unit cell length, the volume fraction, the fluid velocity in the pipe, the temperature change, an...

Mechanically induced electric and magnetic fields in the bending and symmetric-shear deformations of a microstructure-dependent FG-MEE composite beam

#1Yilin Qu (Xi'an Jiaotong University)H-Index: 3

#2Feng Jin (Xi'an Jiaotong University)

Last. G. Y. Zhang (SEU: Southeast University)H-Index: 9

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Abstract null null A new FG-MEE composite microbeam model is developed using a general higher-order deformation theory (GHDT) to account for the symmetric thickness-shear and thickness-stretch deformations of a beam and a modified couple stress theory (MCST) to describe the microstructure-dependent size effect. Based on the basic assumption of filed variables and Hamilton’s principle, the one-dimensional second-order coupled equations of motion and complete boundary conditions are obtained simul...

Bending, Buckling and Vibration Analysis of Complete Microstructure-Dependent Functionally Graded Material Microbeams

#1Jun Hong (SEU: Southeast University)

#2Shaopeng Wang (SEU: Southeast University)

Last. Changwen Mi (SEU: Southeast University)H-Index: 2

view all 4 authors...

A new functionally graded non-classical Timoshenko microbeam model is developed by using a variational formulation. The new model incorporates strain gradient, couple stress (rotation gradient) and...

#1G. Y. Zhang (SEU: Southeast University)H-Index: 9

#2Xin-Lin Gao (SMU: Southern Methodist University)H-Index: 41

Last. Changwen Mi (SEU: Southeast University)H-Index: 1

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Abstract null null A new non-classical Bernoulli-Euler (B-E) beam model is developed using a simplified micromorphic elasticity theory. This micromorphic theory, which contains 7 independent material constants, is first proposed by simplifying the classical Eringen-Mindlin micromorphic theory for isotropic linear elastic materials, which includes 18 elastic constants. The new B-L beam model is then formulated by applying the simplified micromorphic theory and employing a variational approach bas...

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