Smart composite detects and repairs airplane cracks

时间:2019-03-01 05:20:04166网络整理admin

By Paul Marks A smart composite material that senses cracks as they develop and then repairs the damage could make the next generation of aeroplanes safer. Composites are widely used in bicycles, fishing rods, racing cars and aircraft, and the first all-composite aircraft – the Boeing 787 and Airbus A350 – are on the way. A polymer resin typically makes up most of the bulk of a composite, while fibres of a stronger material, such as carbon or glass, are embedded in it to add strength. By varying the type and amounts of resin and fibre,