NUMERICAL ASPECTS OF THE RADIAL INTEGRATION METHOD IN BOUNDARY ELEMENT FORMULATION FOR STABILITY ANALYSIS OF THIN PERFORATED PLATES OF LAMINATED COMPOSITES

NUMERICAL ASPECTS OF THE RADIAL INTEGRATION METHOD IN BOUNDARY ELEMENT FORMULATION FOR STABILITY ANALYSIS OF THIN PERFORATED PLATES OF LAMINATED COMPOSITES

Doval, P. C. M.; Albuquerque, E. L.; Sollero, P.

Full Article:

The radial integration method is a suitable technique to transform domain integrals into boundary integrals. It is quite appropriated for anisotropic materials because it is a pure numerical technique that does not require the computation of approximation functions as in dual reciprocity boundary element method. However, a special attention must be paid on the numerical integration because it has strong influence on the accuracy and computational cost of the method. This paper presents an analysis of performance of the radial integration method, considering accuracy and computational cost, when it is used in stability analysis of thin perforated plates of laminated composite plates by the boundary element formulation. The accuracy of the proposed formulation is assessed by comparison with results from the literature.

The radial integration method is a suitable technique to transform domain integrals into boundary integrals. It is quite appropriated for anisotropic materials because it is a pure numerical technique that does not require the computation of approximation functions as in dual reciprocity boundary element method. However, a special attention must be paid on the numerical integration because it has strong influence on the accuracy and computational cost of the method. This paper presents an analysis of performance of the radial integration method, considering accuracy and computational cost, when it is used in stability analysis of thin perforated plates of laminated composite plates by the boundary element formulation. The accuracy of the proposed formulation is assessed by comparison with results from the literature.

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DOI: 10.5151/meceng-wccm2012-19617

Referências bibliográficas

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Como citar:

Doval, P. C. M.; Albuquerque, E. L.; Sollero, P.; "NUMERICAL ASPECTS OF THE RADIAL INTEGRATION METHOD IN BOUNDARY ELEMENT FORMULATION FOR STABILITY ANALYSIS OF THIN PERFORATED PLATES OF LAMINATED COMPOSITES", p-3879-3887. In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 23580828, DOI 10.5151/meceng-wccm2012-19617