IFAI Expo 2019

Sessions Speakers Exhibitors Floor Plan Buzz

Development of Textile-based Sensors for Inspection of Composite Materials (Room Booth A859)

Composites are not only lightweight but also highly resilient. Therefore, they are well established in engineering applications where components must withstand strong forces, e.g. in wind turbines, aircrafts and automotive. So far, the monitoring of mechanical deformation and damage of composite materials is performed by established analytical methods: Strain gauges, optical or piezoelectric sensors are the most common techniques. However, large areas outside of the measuring cell remain unconsidered. 1. A large-area sensitive sensor will be presented, which is simply generated by printing on the reinforcing textile. 2.This sensor enables to determine mechanical deformations and damages of the entire component and it responds with a measurable electrical resistance to external tension or pressure without any hysteresis. 3.The influence of mechanical stress parameters (such as degree of deformation and bending speed) on the shape of the sensor signal will be outlined. It will be shown that even smallest deformations can be detected.