Nonlinear Dynamic Buckling of FGM Shallow Conical Shells under Triangular Pulse Impact Loads

Jie Lin; Chao Deng; Jia Chu Xu

doi:10.4028/www.scientific.net/AMR.460.119

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 460Nonlinear Dynamic Buckling of FGM Shallow Conical...

Nonlinear Dynamic Buckling of FGM Shallow Conical Shells under Triangular Pulse Impact Loads

Abstract:

In this paper, nonlinear dynamic buckling of FGM shallow conical shells under the action of triangular pulse impact loads are investigated. The nonlinear dynamic governing equation of symmetrically FGM shallow conical shells is built. Using Galerkin method, the nonlinear dynamic governing equation is solved, and the nonlinear dynamic response equation of symmetrically FGM shallow conical shells is obtained. The Runge-Kutta method is introduced to numerically solve the nonlinear dynamic response equation and the impact response curve is achieved. Budiansky-Roth motion criterion expressed by the displacement of the peak of the shell is employed to determine the critical impact buckling load. The influences of geometric parameters and gradient constants on impact buckling are discussed as well.

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Periodical:

Advanced Materials Research (Volume 460)

Pages:

119-126

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.460.119

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Online since:

February 2012

Authors:

Jie Lin, Chao Deng, Jia Chu Xu

Keywords:

Budiansky-Roth Motion Criterion, FGM Shallow Conical Shells, Galerkin Method, Impact Dynamic Buckling

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