Static and dynamic characteristics of nano-reinforced 3D-fiber metal laminates using non-destructive techniques

Uncontrolled vibration in mechanical systems (e.g. aircraft, trains, and automobiles) may result in undesirable noise and eventually, cause mechanical failure. In this context, the main objective of the present research is to explore parameters that govern and affect the frequency response of three-dimensional fiber metal laminates. Three-dimensional fiber metal laminates are a class of novel lightweight hybrid material systems with great potential for use in aforementioned applications. Therefore, the vibration characteristics of the two most commonly used configurations of three-dimensional fiber metal laminates are experimentally investigated by nontraditional and conventional approaches. Material damping is also improved by the inclusion of two different types of nanocarbon particles within the core and/or interfaces of the hybrid system. The results are presented and compared. The inclusion of nanocarbon particle improved the fundamental frequency of the system slightly; however, material damping was enhanced significantly when only 1 wt% nanocarbon particle was used in the interfacial sections of the system.