Zhao, Kai, Kennedy, David  ORCID: https://orcid.org/0000-0002-8837-7296, Featherston, Carol A. ORCID: https://orcid.org/0000-0001-7548-2882 and Liu, Xiaoyang
2026.
Coupled wavelength postbuckling analysis of composite laminates under compression and shear.
Engineering with Computers
42
, 8.
10.1007/s00366-025-02251-8
|
Abstract
This paper introduces a novel approach, the coupled wavelength postbuckling analysis (CWPAN), to study the postbuckling behaviour of composite laminates under various conditions. CWPAN utilizes sinusoidal solutions, derived from the exact strip method, to represent in-plane displacements, strains, and stresses, reducing the size of the stiffness matrix, and thereby the computational expense. To handle progressive out-of-plane displacements along the postbuckling path, a novel Newton iteration scheme, based on the Exact Strip Method, is employed. By transforming nonlinear equations into linear ones, CWPAN maintains stability for postbuckling nonlinearities. The efficacy and efficiency of CWPAN is illustrated by comparisons with finite element method.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Publisher: | Springer Science and Business Media LLC |
| ISSN: | 0177-0667 |
| Date of Acceptance: | 12 November 2025 |
| Last Modified: | 19 Jan 2026 12:45 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/184007 |
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