Quasi-static and impact response of graded aluminium matrix syntactic foams



Liang, C and Zhao, Y ORCID: 0000-0003-2356-8435
(2018) Quasi-static and impact response of graded aluminium matrix syntactic foams. .

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Abstract

© 2018 Trans Tech Publications, Switzerland. The behaviour of aluminium matrix syntactic foams (AMSFs) with homogeneous and graded structures have been studied under quasi-static compression and impact. Particle size of ceramic microspheres and impact velocity had significant effects on the static and impact responses. Smaller microspheres led to higher strength but lower toughness. The compressive yield stress, plateau stress and specific energy absorption of the graded AMSF specimens were approximately the averages of the constituent layers, following the rule of mixture, although the order of the layers had some influence on the compressive behaviour. The syntactic foams were brittle under impact, no matter whether they were brittle or ductile in quasi-static compression. They had higher peak stresses and absorbed more energy in impact than in quasi-static compression. The location of the most brittle layer of the small ceramic microspheres had a significant effect on the impact failure pattern and sequence of the three-layer graded AMSFs.

Item Type: Conference or Workshop Item (Unspecified)
Depositing User: Symplectic Admin
Date Deposited: 03 Dec 2018 11:14
Last Modified: 01 Oct 2021 07:24
DOI: 10.4028/www.scientific.net/MSF.933.246
URI: https://livrepository.liverpool.ac.uk/id/eprint/3029269