11 - Structural health monitoring of biocomposites, fibre-reinforced composites, and hybrid composite

Abstract

Structural health monitoring (SHM) system is a method of evaluating and monitoring structural health. It has been widely applied in various engineering sectors due to its ability to respond to adverse structural changes, improving structural reliability and life cycle management. Various methods in SHM are presented in this chapter such as acoustic emission, ultrasonic, and thermal imaging. The advantages of SHM and nondestructive testing method are compared. In addition, SHM applications in the aerospace, civil, and energy sectors are discussed thoroughly. Furthermore, special attention is given to composite material that employs the SHM system in recent research investigations. Anisotropic composite materials can be divided into three different fiber reinforcements, namely synthetic, natural, and hybrid fibers. SHM applications in composites and the recent trends are explored. In approaching the fourth industrial revolution, SHM as a sensor for civil engineering applications is proposed due to its capability of interacting with the environment. Furthermore, the intention to enhance sensor capability to handle more functions is also discussed. At the end of this chapter, recent issues are highlighted to emphasize the technology and SHM potential as an energy harvester in the near future.