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Quasi-static puncture shear loading behaviour MWCNT/glass fibre epoxy laminates with various indenters
Department of Mechanical Engineering, Rajagopal polytechnic college - (Government Aided), Gudiyattam -632602, Vellore, Tamil Nadu, India.
Department of Manufacturing Engineering, Central Institute of Petrochemicals Engineering and Technology - Guindy, Chennai -600032, Tamil Nadu, India.
Department of Mechanical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, India.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China.
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2023 (English)In: Polymer testing, ISSN 0142-9418, E-ISSN 1873-2348, Vol. 127, article id 108191Article in journal (Refereed) Published
Abstract [en]

Investigation was performed to evaluate the puncture resistance of multi-walled carbon nanotubes (MWCNTs)/glass fibre epoxy laminate composites using different indenters (conical, elliptical, flat, and hemispherical). For the puncture tests, MWCNT weight percentage and indenter type were varied. Furthermore, the impact of MWCNT on tensile, flexural, and interlaminar shear strength was evaluated. Ultrasonic C-scan provided insights into the damage evolution and failure mechanisms of the laminates under puncture. The results indicate that the flat indenter exhibits prolonged indentation time and enhanced energy absorption, resulting in a disc-shaped failure pattern. On the other hand, the conical indenter demonstrates rapid penetration due to its smaller contact surface area. The elliptical indenter generates higher frictional energy, leading to bulging damage. The hemispherical indenter showed an even distribution of force across the impacted surface, minimizing force concentration and reducing the extent of damage. These findings shed light on the puncture mechanisms of MWCNT/Glass fibre epoxy laminate composites, paving the way for more precise glass fibre laminate composite design and optimisation in practical applications such as aerospace, automotive, and sporting goods, where puncture loading is a critical consideration.

Place, publisher, year, edition, pages
Elsevier Ltd , 2023. Vol. 127, article id 108191
Keywords [en]
Flexural strength, Glass/epoxy composites, Interlaminar shear strength, Multi-walled carbon nanotubes, Puncture resistance
National Category
Composite Science and Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-101612DOI: 10.1016/j.polymertesting.2023.108191ISI: 001078528800001Scopus ID: 2-s2.0-85171136800OAI: oai:DiVA.org:ltu-101612DiVA, id: diva2:1803953
Note

Validerad;2023;Nivå 2;2023-10-11 (joosat);

CC BY 4.0 License

Available from: 2023-10-11 Created: 2023-10-11 Last updated: 2024-03-07Bibliographically approved

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Das, Oisik

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