Elastodynamic solution for plane-strain response of functionally graded thick ho

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*n mp)p} b y0Elastodynamic solution for plane-strain response of functionally graded thick hollow cylinders by analytical method水利论文%k3St*Y4b3[p N

/P$^koV1W\0Abstract:An elastodynamic solution for plane-strain response of functionally graded thick hollow cylinders subjected to uniformly-distributed dynamic pressures at boundary surfaces is presented. The material properties, except Poisson's ratio, are assumed to vary through the thickness according to a power law function. To achieve an exact solution,the dynamic radial displacement is divided into two quasi-static and dynamic parts, and for each part, an analytical solution is derived. The quasi-static solution is obtained by means of Euler's equation, and the dynamic solution is derived using the method of the separation of variables and the orthogonal expansion technique. The radial displacement and stress distributions are plotted for various functionally graded material (FGM) hollow cylinders under different dynamic loads, and the advantages of the presented method are discussed. The proposed analytical solution is suitable for analyzing various arrangements of hollow FGM cylinders with arbitrary thickness and arbitrary initial conditions, which are subjected to arbitrary forms of dynamic pressures distributed uniformly on their boundary surfaces.

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M. NIKKHAH F. HONARVAR E. DEHGHAN水利论文"a3mqsu

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作者单位:

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-iej%X]F:Z$a0Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran 1999143344, Iran水利论文BF#}IgX#o:I

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应用数学和力学(英文版)

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Journal:

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APPLIED MATHEMATICS AND MECHANICS

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functionally graded material水利论文'Z:w0N STOh

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elastodynamic solution水利论文+mWfr4pYT M

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hollow cylinder

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power law function水利论文H ?q&P x'{w

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analytical method analytical solution dynamic functionally graded material separation of variables material properties initial conditions exact solution power law method of different analyzing Poisson stress FGM parts means Euler two水利论文H'D ZEF/F'm6X/v6{c

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