High-velocity impact deformation and perforation of fibre metal laminates

Cihan Kaboglu, Iman Mohagheghian, Jin Zhou, Zhongwei Guan, Wesley Cantwell, Sabu John, Bamber R.K. Blackman, Anthony J. Kinloch, John P. Dear

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

The quasi-static flexural and impact performance, up to projectile impact velocities of about 270 m s−1, of fibre metal laminates (FMLs), which consist of relatively thin, alternately stacked, layers of an aluminium alloy and a thermoset glass fibre epoxy composite, have been investigated. The effects of varying (a) the yield strength, tensile strength and ductility of the aluminium alloy layer, (b) the surface treatment used for the aluminium alloy layers and (c) the number of layers present in the FML have been studied. It was found that increasing the strength of the aluminium alloy increases the quasi-static flexural strength of the FML, providing that good adhesion is achieved between the metal and the composite layers. Further, increasing the number of alternating layers of the aluminium alloy and fibre composite also somewhat increases the quasi-static flexural properties of the FML. In contrast, increasing the strength of the aluminium alloy had relatively little effect on the impact perforation resistance of the FML, but increasing the number of alternating layers of aluminium alloy and fibre composite did significantly increase the impact perforation resistance of the FML. The degree of adhesion achieved between the layers had only a negligible influence on the impact perforation resistance.

Original languageBritish English
Pages (from-to)4209-4228
Number of pages20
JournalJournal of Materials Science
Volume53
Issue number6
DOIs
StatePublished - 1 Mar 2018

Fingerprint

Dive into the research topics of 'High-velocity impact deformation and perforation of fibre metal laminates'. Together they form a unique fingerprint.

Cite this