Nonlinear Dynamic Response Of Thermal Laminated Plate With Axial Motion Subjected To Blast Load

The laminate structure is often used in aircraft, space stations, automobiles, submarines. Such structures are sometimes in motion and high temperature environment, and by the impact load such as sonic boom and explosion. Therefore, the study of nonlinear dynamical behavior of such a motion structure under impact load is full of academic theoretical and engineering significance. This paper mainly aims at the nonlinear dynamic response of laminated plate with axial motion subjected to blast load and blast load in thermal environment.In Chapter 1, the background and significance of this research of laminated structure are introduced and the development of the laminated structure, the axial movement of the structure, such structure under thermal environment and such structure under the impulse response at home and abroad are pointed out.In Chapter 2 and 3, the nonlinear dynamic responses of laminated plate with axial motion subjected to blast load are studied. Firstly, based on constitutive relation of single layer material and large deformation theory, in consideration of geometric nonlinearity, the nonlinear dynamical governing equations of laminated plate under the combined effect of impact load and axial motion is obtained. Then through Galerkin discretization, the modal equations are gained and can be solved by Runge-Kutta method. Thus, the dynamic response of laminated plate with axial motion subjected to blast load shows up. Finally, the effects of axial moving velocity, the peak reflected pressure and the positive pressure phase duration on the nonlinear dynamic response are investigated.In Chapter 4 and 5, the nonlinear dynamic responses of laminated plate with axial motion subjected to blast load in thermal environment are studied. Firstly, based on constitutive relation of single layer material in thermal environment and large deformation theory, nonlinear dynamical governing equations of laminated plate under the combined effect of thermal environment and impact load is obtained. Then through Galerkin discretization,, the modal equations are gained and can be solved by Runge-Kutta method too. Thus, the dynamic response of laminated plate with axial motion subjected to blast load in thermal environment shows up. Finally, the effects of temperature variation, axial moving velocity, the peak reflected pressure and the positive pressure phase duration on the nonlinear dynamic response are investigated.