Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6704141 | Composite Structures | 2018 | 40 Pages |
Abstract
A weak-form approach to the development of an accurate bend-twist coupled composite laminate beam element is presented herein. Comparisons are made between the stiffness matrix terms using the presented method and a shell finite element model of an idealized beam; the proposed method shows good agreement for a suite of beams with varying degrees of bend-twist coupling. The method is then extended to the calculation of natural frequencies by combining the new stiffness matrix with a corresponding consistent mass matrix to formulate the eigenvalue problem and shows very good agreement with both analytical and shell element solutions.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Pavel Babuska, Richard Wiebe, Michael R. Motley,