Testing bullet proof composites
We first examined what composites were and their uses in everyday life.
Common composites are GRP (Glass reinforced plastic) or fibre glass, carbon fibre and boron fibre as well as aramid fibre composites (kevlar), the latter are used in bullet proof garments.
The students were set the task to produce a cheap composite from a range of materials that was strong enough to withstand a mock bullet impact (in reality a clamp stand rod dropped down a piece of plastic pipe from 1 metre onto the test material.
Students had the option to use 1 sheet of real kevlar in their composite if they wished.
Watch this space for the results of the experiment….