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A 12‐node hybrid stress brick element for beam/column analysis

K.Y. Sze (Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China, and)
S.H. Lo (Department of Civil Engineering, The University of Hong Kong, Hong Kong, China)

Engineering Computations

ISSN: 0264-4401

Publication date: 1 November 1999

Abstract

In this paper, a hybrid stress 12‐node brick element is presented. Its assumed stress field is derived by first examining the deformation modes of a geometrically regular element and then generalizing to other element configurations using tensorial transformation. The total number of stress modes is 30 which is minimal for securing the element rank. To reduce the computational cost associated with the fully populated flexibility matrix, the admissible matrix formation is employed to induce high sparsity in the matrix. Popular beam bending benchmark problems are examined. The proposed elements deliver encouraging accuracy.

Keywords

Citation

Sze, K.Y. and Lo, S.H. (1999), "A 12‐node hybrid stress brick element for beam/column analysis", Engineering Computations, Vol. 16 No. 7, pp. 752-766. https://doi.org/10.1108/02644409910298101

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MCB UP Ltd

Copyright © 1999, MCB UP Limited

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