Polyharmonic Multiquadric Particular Solutions for Reissner/Mindlin Plate

Chia-Cheng Tsai

Mathematical Problems in Engineering, 2015, vol. 2015, 1-12

Abstract:

Analytical particular solutions of the polyharmonic multiquadrics are derived for both the Reissner and Mindlin thick-plate models in a unified formulation. In the derivation, the three coupled second-order partial differential equations are converted into a product operator of biharmonic and Helmholtz operators using the Hörmander operator decomposition technique. Then a method is introduced to eliminate the Helmholtz operator, which enables the utilization of the polyharmonic multiquadrics. Then, the analytical particular solutions of displacements, shear forces, and bending or twisting moments corresponding to the polyharmonic multiquadrics are all explicitly derived. Numerical examples are carried out to validate these particular solutions. The results obtained by the present method are more accurate than those by the traditional multiquadrics and splines.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:246159

DOI: 10.1155/2015/246159

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