LAMB WAVE PROPAGATION IN A FUNCTIONALLY GRADED PIEZOELECTRIC-PIEZOMAGNETIC MATERIAL PLATE

摘要：

Propagation of Lamb waves in a functionally graded piezoelectric-piezomagnetic material plate with material parameters change gradually along thickness direction is investigated.The power series technique is employed for solving the governing differential equations with variable coefficients.In numerical examples,the influence of the variation of each parameter on dispersion curves and cut-off frequency for electrical and magnetic open case is discussed.The results obtained indicate that graded elastic parameters and mass density affect the phase velocity remarkably.Some other graded electrical and magnetic parameters affect the phase velocity a little.The cut-off frequency is close related to two elastic parameters and mass density,while other material parameters almost cant affect it.All the results may provide theoretical guidance not only for the analysis and design of high performance electromagnetic transducers but also for the ultrasonic nondestructive evaluation (NDE) of functionally graded piezoelectric-piezomagnetic materials.

关键词： functionally graded piezoelectric-piezomagnetic material (FGPPM) Lamb waves dispersion curves cut-off frequency

作者: F.Jin X.S.Cao

作者单位: Key Laboratory for Strength and Vibration,School of Aerospace,Xian Jiaotong University,Xian 710049 Xian University of Science and Technology,Xian 710048,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 663-666

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）