Abstract
This research work focuses on the development of a piezoelectric magnetostrictive smart composite with advanced sensing capability. The composite piezoelectric property is achieved from the dispersion of single-walled carbon nanotubes (SWCNTs) and the magnetostrictive property from Terfenol-D nanoparticles. Finite element analysis (FEA) is used to examine the feasibility of modelling the piezoelectric (change in electric field) and magnetostrictive (change in magnetic field) self-sensing responses in the presence of applied stress. The numerical work was coupled with a series of mechanical tests to characterize the piezoelectric response, magnetostriction response and mechanical strength. Tensile tests of the composite samples manufactured as is (virgin), samples with SWCNTs, samples with Terfenol-D nanoparticles and samples with both SWCNTs and Terfenol-D nanoparticles were conducted. It was observed that an increase in volume fraction of Terfenol-d nanoparticles increases the change in magnetization, therefore increasing voltage response up to the point of saturation. The optimum change in amplitude was observed with 0.35% volume fraction of Terfenol-D nanoparticles. A constant ratio of SWCNTs was maintained, and maximum change in electrical resistance was at 7.4%. Fracture toughness for the samples with all nanoparticles was explored, and the results showed improved resistance to crack propagation.
Highlights
The development of smart self-sensing composite materials has been prominent in recent years
Their work showed that 0.1% multiwalled carbon nanotubes (MWCNT) in glass fiber composites temperatures
Their work showed that 0.1% multiwalled carbon nanotubes (MWCNT) in glass fiber contribute to an increase in flexural strength and modulus of the composite
Summary
The development of smart self-sensing composite materials has been prominent in recent years. During the fabrication process of composite materials, minor voids may be generated between the matrix and fibers, resulting in increased composite porosity. Propagation of minor defects such as voids and matrix cracks can lead to delamination such asavoids and matrix can lead to delamination composite sample [7].(BVID), These within composite samplecracks [7]. These types of defects, includingwithin barelyavisible impact damage types of defects, including barely visible impact damage (BVID), are generalized in the schematic are generalized in the schematic shown in Figure 1 for carbon fiber-reinforced polymer (CFRP) composites.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
