Solution of plane elasticity problems with Mathematica (EN)

Anastasselos, GT (EN)

Ioakimidis, NI (EN)

The classical complex-variable method of Muskhelishvili for the solution of general plane elasticity problems is revisited. The boundary conditions are satisfied automatically and the related functional equation of Muskhelishvili is approximately solved by selection of the collocation points outside the elastic medium. This ensures the approximate solution of the biharmonic equation of plane elasticity. This approach is completely different from boundary element and finite element methods, since the main attempt is to satisfy the analyticity of the complex potentials (almost equivalently, the biharmonic equation) and not the boundary conditions or both of these. The modern and powerful computer algebra system Mathematica was selected as an appropriate programming language for the related computer procedure, which is also given. Symbolic parameters can also be used in the computing environment offered by Mathematica. Numerical and semi-numerical results in a special application (elliptical region) are also presented and seen to converge rapidly. Both cases of the first and the second fundamental problems are considered. © 1995. (EN)

journalArticle (EN)

Functional Equation (EN)

Computer Science, Interdisciplinary Applications (EN)

Boundary Element (EN)

Finite Element Method (EN)

Muskhelishvili general method (EN)

Complex potentials (EN)

Elasticity (EN)

Software Package Mathematica (EN)

Boolean algebra (EN)

Computer Algebra System (EN)

Computational complexity (EN)

Finite element method (EN)

Approximate Solution (EN)

biharmonic equation (EN)

Engineering, Civil (EN)

Integral equations (EN)

Programming Language (EN)

Fredholm integral equations (EN)

Boundary Condition (EN)

Satisfiability (EN)

Boundary element method (EN)

Computer aided analysis (EN)

Mathematical programming (EN)

National Technical University of Athens

Digital Library of National Technical University of Athens | Dspace@NTUA

Κεντρική Βιβλιοθήκη Ε.Μ.Π.

Ιδρυματικό Αποθετήριο

Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά

Computers and Structures (EN)

English

1995 (EN)

http://hdl.handle.net/123456789/11664

55 (EN)

2 (EN)

10.1016/0045-7949(94)00467-H (EN)

0045-7949 (EN)

236 (EN)

229 (EN)

ISI:A1995QP09000005 (EN)

PERGAMON-ELSEVIER SCIENCE LTD (EN)