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Boundary element analysis of a plate on elastic foundations
Author(s) -
Puttonen Jari,
Varpasuo Pentti
Publication year - 1986
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620230211
Subject(s) - boundary element method , boundary knot method , singular boundary method , method of fundamental solutions , mathematical analysis , mathematics , parametric statistics , boundary (topology) , finite element method , mixed boundary condition , boundary value problem , foundation (evidence) , fourier series , structural engineering , engineering , archaeology , history , statistics
The objective of this study is to examine the applicability of the boundary element method to analysing a plate on elastic foundation. The fundamental solution of the problem is presented as a Fourier‐Bessel integral. For the computation of the values of the fundamental solution an algorithm was developed in which the Fourier‐Bessel integral was decomposed into an alternative convergent sequence. Equations based on the direct and indirect boundary element method were derived for a plate situated on a one‐ or two‐parametric elastic foundation. According to the theory presented, computer programs based on the direct and indirect boundary element method were developed. These programs can be used for examining the behaviour of a smooth‐boundary plate on a one‐ or two‐parametric elastic foundation. The computer programs were tested by several examples. The results obtained by using a small number of boundary elements compared favourably to the results obtained by a fine finite element mesh. The study shows that the boundary element method is applicable to the analysis of a plate on elastic foundation.