Abstract
Abstract The impact performance of a number of thermoplastic- and thermosetting-matrix carbon fibre composites is examined at room temperature, 80°C and 150°C. Tests were performed to examine the influence of matrix type and morphology on the ability of the composite to withstand penetration, absorb energy and sustain damage. A distinction is made between impacts at high energy where full penetration of the specimen takes place by the indentor, and low-energy tests where damage is introduced but the plate is not ruptured. The influence of test temperature on both types of impact event is examined for a restricted set of specimens consisting of an epoxy-matrix laminate, Fibredux 924C, and a polyaryl sulfone-matrix thermoplastic laminate, Radel 8320. Test temperature is shown to have little influence on through-penetration impact results, although high-temperature testing does increase the spread of delaminations in epoxy laminates subjected to low-energy impact tests.
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