Abstract
Structural health monitoring is essential to modern infrastructure management, ensuring safety, optimizing costs, and enhancing structures' overall performance and reliability. Leftover fish scales (FS) in varying quantities (5, 10, 15, and 20wt.%) are reinforced into a polyvinylidene fluoride (PVDF) matrix to develop highly flexible piezoelectric composites, which are then assessed as impact sensors. The role of FS loading on the mechanical and dielectric behavior of PVDF is also investigated. PVDF with 10% FS loading showed maximum Ultimate tensile strength (UTS) and Elastic modulus (E) of 37MPa and 1192MPa, respectively. A 56% and 67% enhancement in UTS and E values over pure PVDF matrix is recorded. Piezoelectric nanogenerators (PENGs) are then fabricated to check the piezo response of composites under various loading conditions using a human hand (finger tapping, palm tapping, film twisting, and wrist pressing). The device with a maximum piezo response is further assessed for potential impact sensing under different impact loading conditions. The recorded results are analyzed statistically using the Weibull distribution approach to cater to the o/p voltage variations for each test load. The potential for sustainability and circular economies is significantly expanded with a cost-effective, highly sensitive piezoelectric impact sensor crafted from FS.
Published Version
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 call