Dynamic analysis of two-dimensional functionally graded thick hollow cylinder with finite length under impact loading. (English) Zbl 1397.74157
Summary: In this paper a thick hollow cylinder with finite length made of two-dimensional functionally graded material (2D-FGM) and subjected to impact internal pressure is considered. The axisymmetric conditions are assumed for the 2D-FG cylinder. The finite element method with graded material properties within each element is used to model the structure, and the Newmark direct integration method is implemented to solve the time-dependent equations. The time histories of displacements, stresses and 2D wave propagation are investigated for various values of volume fraction exponents. Also the effects of mechanical properties distribution in radial and axial direction on the time responses of the FG cylinder as well as the stress distribution are studied and compared with a cylinder made of 1D-FGM. The achieved results show that using 2D-FGM leads to a more flexible design. To verify the presented method and data, the results are compared to published data.
MSC:
| 74M20 | Impact in solid mechanics |
| 74S05 | Finite element methods applied to problems in solid mechanics |
| 74E05 | Inhomogeneity in solid mechanics |
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