Electromagnetoelastic behaviors of functionally graded piezoelectric solid cylinder and sphere

Electromagnetoelastic behaviors of functionally graded piezoelectric solid cylinder and sphere

H.L.Dai;Y.M.Fu;J.H.Yang

【期刊名称】《力学学报：英文版》 【年(卷),期】2007(023)001

【摘要】Analytical studies on electromagnetoelasticbehaviors are presented for the functionally graded pie-zoelectric material (FGPM) solid cylinder and sphereplaced in a uniform magnetic field and subjected tothe external pressure and electric loading.When themechanical,electric and magnetic properties of thematerial obey an identical

power

law

in

the

radial

direc-tion,the

exact

displacements,stresses,electric potentialsand perturbations of magnetic field vector in the FGPMsolid cylinder and sphere are obtained by using the infin-itesimal theory of electromagnetoelasticity.Numericalexamples also show the significant influence of materialinhomogeneity.It is interesting to note that selecting aspecific value of inhomogeneity parameter β can opti-mize the electromagnetoelastic responses,which willbe of particular importance in modern engineering designs. 【总页数】9页(55-63) 【

关

键

词

】

Functionally

graded

piezoelectric

material(FGPM);Electromagnetoelastic;Solid

cylinder;Solidsphere;Perturbation of magnetic field vector