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https://hdl.handle.net/2440/136300
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Type: | Journal article |
Title: | A sub-laminate based higher-order model for bending of laminated beams containing multiple delaminations |
Author: | Feng, Y. Muni Rami Reddy, R. Sheikh, A.H. Ng, C.-T. Smith, S.T. |
Citation: | Composite Structures, 2022; 294 |
Publisher: | Elsevier BV |
Issue Date: | 2022 |
ISSN: | 0263-8223 1879-1085 |
Statement of Responsibility: | Yuan Feng, R. Muni Rami Reddy, Abdul Hamid Sheikh, Ching-Tai Ng, Scott T. Smith |
Abstract: | The paper presents a new sub-laminate based higher-order laminated model (HOLM) for modelling the bending response of laminated composite and sandwich beams with and without delaminations of any configuration. The variation of in-plane and transverse displacement fields through the thickness of a sub-laminate is assumed cubic and quadratic, respectively. Such variation involves specifying displacement parameters at the top and bottom surfaces of sub-laminates that provide significant benefit in conveniently modelling perfect and delaminated multilayered beams with any desired level of accuracy. The option exists to therefore trade-off between pre- diction and computational efficiency by adapting a suitable sub-laminate modelling scheme. A C0 continuous beam element with quadratic in-plane variation of displacements is developed for implementation of the pro- posed laminate model. The versatility and accuracy of the model is demonstrated by via a number of numerical examples of composite and sandwich beams, covering a range of variables such as boundary conditions, loading, and delamination configuration. A number of the newly developed results reported in this paper will serve as baseline data for delaminated structures. |
Keywords: | Composite and sandwich beam; Sub-laminate model; Multiple delaminations; Higher order model; Bending response |
Rights: | © 2022 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/j.compstruct.2022.115729 |
Grant ID: | http://purl.org/au-research/grants/arc/DP220103665 |
Published version: | http://dx.doi.org/10.1016/j.compstruct.2022.115729 |
Appears in Collections: | Civil and Environmental Engineering publications |
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