19 November 2007
19 November 2007
Cornerstone Research Group (CRG) has developed bio-inspired, reflexive composites that allow aerostructures to heal themselves during flight.
Designed to mimic the human reflex response, reflexive composites sense structural damage, respond quickly and autonomously to the damage, and heal the area while keeping the operator informed of the healing process.
CRG teamed with Franklin Innovation and Acellent Technologies to integrate a piezoelectric-based structural health monitoring (SHM) system and an autonomous control system. The reflexive composite system is integrated with SHM to provide continuous feedback to the control system regarding the structural integrity of the composite panels. The SHM continually scans the structure looking for damage and analyzing the information by magnitude, physical size, and zone prioritization. Damage is assessed on a predetermined scale for vehicle survival. The control system works autonomously, responding to damage and informing the vehicle operator of the status.
CRG’s healable resin system has been tailored to focus on strength recovery, shape recovery, and polymer healing. Reflexive panels have demonstrated the ability to retain 90% of flexural strength and modulus after yield and subsequent healing cycle exposure.
Reflexive composites allow aerostructures to seal micro-cracks, heal delamination, and restore aerodynamic surfaces while remaining in flight.
Teijin announces that the A350 XWB aircraft, Airbus’s new-generation extra-wide-body midsize jetliner incorporating Teijin’s Tenax TPCL carbon fibre thermoplastic consolidated laminate, was delivered to Japan Airlines (JAL) and arrived at Haneda Airport in Tokyo on 14 June.
Three-dimensional (3-D) weaving of composite fabrics can produce complex, single-piece structures that are strong and lightweight.
Composite Cluster Singapore (CCS) announces that it is working with Eviation Aircraft on ‘Alice’ – a fully electric aircraft structure that is currently showcased at the 53rd International Paris Air Show in Le Bourget, France.