Electromagnetoelastic behaviors of functionally graded piezoelectric solid cylinder and sphere

• 来源期刊: 力学学报（英文版）
• 年，卷（期）: 2007,（1）
• 页码范围: 55-63
• 页数: 9页
• 语种: 英文

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.