Electromagnetoelastic behaviors of functionally graded piezoelectric

戴宏亮 傅衣铭 J.H. Yang

doi:10.6052/0459-1879-2007-1-2006-127

Electromagnetoelastic behaviors of functionally graded piezoelectric

戴宏亮傅衣铭 J.H. Yang

湖南大学工程力学系湖南大学工程力学系湖南大学工程力学系

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出版历程
- 收稿日期: 2006-03-21
- 修回日期: 2006-05-07
- 刊出日期: 2007-01-17

Electromagnetoelastic behaviors of functionally graded piezoelectric

Hongliang Dai, Yiming Fu, J.H. Yang

摘要

摘要: Analytical studies on electromagnetoelastic behaviors arepresented for the functionally graded piezoelectric material (FGPM) solidcylinder and sphere placed in a uniform magnetic field and subjected to theexternal pressure and electric loading. When the mechanical, electric andmagnetic properties of the material obey an identical power law in theradial direction, the exact displacements, stresses, electric potentials andperturbations of magnetic field vector in the FGPM solid cylinder and sphereare obtained by using the infinitesimal theory of electromagnetoelasticity.Numerical examples also show the significant influence of materialinhomogeneity. It is interesting to note that selecting a specific value ofinhomogeneity parameter can optimize the electromagnetoelasticresponses, which will be of particular importance in modern engineeringdesigns.
- FGPM /
- Electromagnetoelastic /
- Solid cylinder /
- Solid sphere /
- Perturbation of magnetic field vector
Abstract: Analytical studies on electromagnetoelastic behaviors arepresented for the functionally graded piezoelectric material (FGPM) solidcylinder and sphere placed in a uniform magnetic field and subjected to theexternal pressure and electric loading. When the mechanical, electric andmagnetic properties of the material obey an identical power law in theradial direction, the exact displacements, stresses, electric potentials andperturbations of magnetic field vector in the FGPM solid cylinder and sphereare obtained by using the infinitesimal theory of electromagnetoelasticity.Numerical examples also show the significant influence of materialinhomogeneity. It is interesting to note that selecting a specific value ofinhomogeneity parameter can optimize the electromagnetoelasticresponses, which will be of particular importance in modern engineeringdesigns.