Quasi-static puncture shear loading behaviour MWCNT/glass fibre epoxy laminates with various indentersVise andre og tillknytning
2023 (engelsk)Inngår i: Polymer testing, ISSN 0142-9418, E-ISSN 1873-2348, Vol. 127, artikkel-id 108191Artikkel i tidsskrift (Fagfellevurdert) 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.
sted, utgiver, år, opplag, sider
Elsevier Ltd , 2023. Vol. 127, artikkel-id 108191
Emneord [en]
Flexural strength, Glass/epoxy composites, Interlaminar shear strength, Multi-walled carbon nanotubes, Puncture resistance
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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
Merknad
Validerad;2023;Nivå 2;2023-10-11 (joosat);
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