Analysis of nonlinear vibration for symmetric angle-ply laminated viscoelastic plates with damage  

作　　者：Yufang Zheng Yiming Fu 

机构地区：[1]Department ofEngineering Mechanics, Hunan University, Changsha410082, China

出　　处：《Acta Mechanica Sinica》2005年第5期459-466,共8页力学学报（英文版）

基　　金：The project supported by the National Natural Science Foundation of China(10272042);the Special Science Fund of the Doctoral Discipline of the Ministry of Education.China(20020532018)

摘　　要：The behavior of nonlinear vibration for symmetric angle-ply laminated plates including the material viscoelasticity and damage evolution is investigated. By employing the von Karman＇s nonlinear theory, strain energy equivalence principle and Boltzmann superposition principle, a set of governing equations of nonlinear integro-differential type are derived. By applying the finite difference method, Newmark method and iterative procedure, the governing equations are solved. The effects of loading amplitudes, exciting frequencies and different ply orientations on the critical time to failure initiation and nonlinear vibration amplitudes of the structures are discussed. Numerical results are presented for the different parameters and compared with the available data.The behavior of nonlinear vibration for symmetric angle-ply laminated plates including the material viscoelasticity and damage evolution is investigated. By employing the von Karman＇s nonlinear theory, strain energy equivalence principle and Boltzmann superposition principle, a set of governing equations of nonlinear integro-differential type are derived. By applying the finite difference method, Newmark method and iterative procedure, the governing equations are solved. The effects of loading amplitudes, exciting frequencies and different ply orientations on the critical time to failure initiation and nonlinear vibration amplitudes of the structures are discussed. Numerical results are presented for the different parameters and compared with the available data.

关 键 词：Viscoelasticity . Damage evolution. Laminated plates . Structure＇s failure initiation 

分 类 号：O343[理学—固体力学]