Zhang, B. orcid.org/0000-0002-0428-7745, Kawashita, L.F., Jones, M.I. et al. (2 more authors) (2020) An experimental and numerical investigation into damage mechanisms in tapered laminates under tensile loading. Composites Part A: Applied Science and Manufacturing, 133. 105862. ISSN 1359-835X
Abstract
Through-thickness thickness reductions in laminated composites are essential for weight and aerodynamic efficiency, but they can also be the site of damage initiation. Tensile failure mechanisms of modestly tapered laminates, loaded via gripping their thick and thin ends, and a severely tapered laminate, loaded by contact at its tapered section, were investigated via experiments and high-fidelity finite element modelling. The primary failure mode is by delamination, initiated from a terminated ply in the tapered region, which is quite sensitive to a small delamination defect at a ply drop location. Experimental measurements and FE predictions correlate very well in all cases for both location and load. In the severely tapered case, the contact stress influences the delamination and so a fibre failure criterion also needs to be considered, including both the fibre direction tensile stress and its interaction with through-thickness direct and shear stresses imposed by the contact.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | A. Laminates; B. Delamination; C. Cohesive interface modelling; Ply drops |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Systems and Design (iESD) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 16 Apr 2024 13:44 |
Last Modified: | 16 Apr 2024 13:44 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.compositesa.2020.105862 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:206037 |