Enhancing the fracture toughness properties by introducing anchored nano-architectures at the metal–frp composite interface

[thumbnail of jcs-03-00017-v2.pdf]
jcs-03-00017-v2.pdf - Published Version (4MB) | Preview
Available under license: Creative Commons Attribution

Mahendrarajah, Ghowsalya, Kandare, Everson and Khatibi, Akbar A (2019) Enhancing the fracture toughness properties by introducing anchored nano-architectures at the metal–frp composite interface. Journal of Composites Science, 3 (1). ISSN 2504-477X


This paper presents a novel technique for improving aluminium–glass/epoxy composite interfacial bonding through the generation of metallic nano-architectures on the metal surface. Silver nanowires (AgNWs) deposited via solution casting at varying concentrations and annealed at different temperatures in an air atmosphere improved the aluminium-glass/epoxy composite fracture toughness as measured via mode I experiments. For AgNW concentrations of 1 and 3 g/m2 deposited via a single-stage process and annealed at 375◦C, the initiation fracture toughness of the aluminium-glass/epoxy composite improved by 86% and 157%, respectively, relative to the baseline composite without AgNWs. The corresponding steady-state fracture toughness of these nano-modified fibre metal laminates (FMLs) were at least seven times greater than the baseline composite. The FML variant in which AgNWs were deposited at a concentration of 3 g/m2 through a two-stage process followed by annealing at 375◦C and 300◦C, respectively after each deposition, achieved the highest steady-state fracture toughness of all nano-modified composites—a fracture toughness value that was 13 times greater than the baseline composite. Intrinsic and extrinsic toughening mechanisms dictated by the morphology of the silver nano-architectures were found to be responsible for the improved initiation and steady-state fracture toughness in nano-modified FMLs.

Dimensions Badge

Altmetric Badge

Item type Article
URI https://vuir.vu.edu.au/id/eprint/46621
DOI 10.3390/jcs3010017
Official URL https://www.mdpi.com/2504-477X/3/1/17
Subjects Current > FOR (2020) Classification > 4001 Aerospace engineering
Current > Division/Research > College of Science and Engineering
Keywords epoxy composite, aluminum, glass, solution casting, fracture toughness value
Download/View statistics View download statistics for this item

Search Google Scholar

Repository staff login