Smart Wing

Motivation

© Fraunhofer IFAM

Trend:

Integration of Smart Systems into composites for   lightweight constructions  

Challenge:

Integration of smart elements (i.e. structural health monitoring systems) in carbon and glass fiber reinforced composites

Aim:

Increased efficiency of the production of a wing by the employment of printing and laser patterning technologies demonstrated on printed deformation sensors, printed heaters as well as printed conductive paths

Results Smart Wing

Printed Conductors Integrated in Fiber Reinforced Polymers

 

■ Application of digitally printed conductors on textile fabrics and integration in fiber reinforced polymers via vacuum infusion processing

Properties of printed conductors: reproducible resistance ±2%, no changes in resistance during bending

 

■ No impairment of the mechanical properties of the composites with integrated printed conductors   

 


Printed Deformation Sensor Integrated in Fiber Reinforced Polymers

 

■ Development of a printed, passive deformation sensor/antenna for impact detection

    The deformation sensor/antenna is integrated into the glass fiber reinforced polymer and could be read out wirelessly

 


Printed Heaters Integrated in Fiber Reinforced Polymers

 

■ Development of printed heaters integrated into fiber reinforced polymers

    ■ The heaters are able to melt a 2 mm ice layer of -15 °C in 6 minutes

    ■ Heating power of 2.3 W (9V, 250mA ~ 0,1 W/cm²)

 


Integration of Solid State LEDs, Connected by Printed Conductors

 

■ Development of technologies to integrate standard LEDs in fiber-reinforced plastic material

    ■ No heat accumulation after 8 h @ 0.03 W (60% of max. LED Power, 3V, 10mA)

    ■ No damage of the LEDs during composite processing

 


Integration of Piezo Sensors in Fiber Reinforced Polymers

 

■ Development of technologies to integrate and polarize piezo electric (PZT) sensors fiber reinforced polymers

    ■ The impact could be detected by means of the PZT sensors over a distance of 30 cm (at 0.5 Ns!)

    ■ The transit time differences of the compression waves allow a localization of the impact