Tunability of Longitudinal Wave Band Gap in One Dimensional Magneto-Elastic Phononic Crystal

摘要：

　　We study the feasibility of tuning the longitudinal wave band gap of one dimensional(1-D) magneto-elastic rod-shaped phononic crystal by employing extemal magnetic field and compressive pre-stress.The effective elastic,piezomagnetic constants and effective permeability are obtained by the introduction of a nonlinear magnetostrictive constitutive relation,respectively.Through applying the plane wave expansion (PWE) method,we obtain the generalized eigenvalue equation of band-gap structures.The results indicate that the applied static magnetic field and compressive pre-stress can control the band structure of phononic crystal.

作者: R.DING J.ZHANG X.SU Y.GAO

作者单位: Department of Mechanics and Engineering Sciences, School of Civil Engineering and Mechanics.Key Laboratory of Mechanics on Disaster and Environment in Western China, the Ministry of Education of China,Lanzhou University, Lanzhou, Gansu 730000, P.R.China

会议类型: 国际会议

会议名称: Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)

会议地点: 上海

会议语种:英文

页码: 35-38

在线出版日期: 2013-08-01（万方平台首次上网日期，不代表论文的发表时间）