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A novel unified model for laminated composite beams

journal contribution
posted on 17.11.2020, 01:00 by TK Nguyen, BD Nguyen, Thuc Vo, Huu Thai Thai
© 2020 Elsevier Ltd

Based on fundamental equations of the elasticity theory, a novel unified beam model is developed for laminated composite beams. In this model, the displacement field is selected in a unified form which can be recovered to that of existing shear deformation beam theories available in the literature. Based on Lagrange's equations, the governing equations of the present theory are derived. They are then solved for deflections, stresses, natural frequencies and critical buckling loads of composite beams under different boundary conditions and lay-ups by using the Ritz approach with novel hybrid trigonometric functions. Various examples are also presented to verify the accuracy and generalization of the present theory, as well as investigate the influences of fibre angle on the behaviour of composite beams under different boundary conditions and lay-ups.

Funding

This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under Grant No. 107.02-2018.312.

History

Publication Date

15/04/2020

Journal

Composite Structures

Volume

238

Article Number

111943

Pagination

8p.

Publisher

Elsevier

ISSN

0263-8223

Rights Statement

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