The Influence of Shape Memory Alloy Volume Fraction on the Impact Behavior of Polymer Composites

Polymers (Basel). 2018 Nov 16;10(11):1280. doi: 10.3390/polym10111280.

Abstract

The low-velocity impact behavior of Shape Memory Alloy (SMA) reinforced resin matrix polymers is investigated and the influence of the SMA volume fraction on the impact performance of polymer composites is considered for the first time, which are the highlights in this paper. Firstly, 12 kinds of polymer composite specimens with different SMA volume fractions are fabricated in terms of the SMA layup spacing, SMA diameter, and the interaction between the two. Secondly, a low-velocity impact test is carried out in order to study the impact performances of the above polymer composites. Finally, the damage morphology of the specimen after impact is observed by the visualization method and the low-velocity impact performance of the 12 kinds of polymer composites is analyzed on the basis of the force and energy history curve.

Keywords: low-velocity impact; polymer composites; shape memory alloy.