Multifunctional SMA-based composites for aerospace applications

摘要: Multifunctional structural materials possess extra capabilities beyond the basic mechanical properties (strength, stiffness, etc.) such as electrical, magnetic, optical, energy storage, and harvesting that work in synergy to provide advantages reach of sum individual functionalities. These material systems have high potential impact future performance by reducing weight, cost, complexity while improving safety, efficiency, so on. In recent years, many multifunctional been proposed with particular emphasis integration sensing into under context health monitoring, or SHM. This chapter reports a novel can (i) increase resistance conventional unidirectional woven composites, (ii) be employed permanently installed monitoring sensors SHM system for strain damage sensing, (iii) embedded de-icing aircraft system. new class were achieved embedding shape–memory alloys (SMAs) wires within traditional carbon-reinforced plastic composites. The SMA could introduce additional functionalities increasing composites panels using their intrinsic electrical properties, memory effect, etc. particular, exploiting variation internal power resistive heating source provided SMAs network, built-in fast assessment variation, imaging via thermal achieved. presents an overview these application aerospace structures. Research results date showed higher detecting anomalies improvement composite Finally current challenges are discussed successful implementations