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《Journal of Vibration and Shock》 2007-01
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DYNAMIC BUCKLING OF LAMINATED COMPOSITE,TRUNCATED,SHALLOW SPHERICAL SHELLS UNDER A CONCENTRATED IMPACT

Xu Jiachu,Yang Zengtao(Department of Mechanics and Civil Engineering,Jinan University,Guangzhou 510632)  
Nonlinear dynamic buckling for laminated composite,truncated,shallow spherical shells under a concentrated impact is investigated.Adding transverse inertia term and introducing concentrated impact load to their basic equations,the nonlinear dynamic governing equations for laminated shallow spherical shells subjected to a concentrated impact are gained.The corresponding nonlinear dynamic response equations are obtained by Galerkin method and solved by Runge-Kutta method.Budiansky-Roth criterion expressed by displacements of rigid center is employed to detemine the critical concentrated impact bucking load.The effects of geometric parameters on impact buckling of laminated,truncated,shallow spherical shells are discussed.
【CateGory Index】: O344
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