Year: 2025
Type: conference-paper
Abstract: This work presents the development of a self-sensing Carbon Fiber Reinforced Polimer (CFRP) laminate embedding P(VDF-TrFE) nanofibers for real-time impact detection and localization. Four nanostructured sensors were embedded within the midplane of cross-ply laminates and compared against laminates incorporating commercial PZT sensors. A probabilistic impact localization algorithm based on Gaussian Process Regression and differential Time of Arrival (dToA) measurements were implemented. While PZT sensors exhibited higher localization accuracy (RMSE=2.32 cm) compared to nanofiber-based sensors (RMSE=3.37 cm), they caused more severe interfacial damage under low-velocity impacts. In contrast, the nanostructured sensors confined damage to the polymeric interlayer, preserving the CFRP integrity. The results highlight the potential of nanofiber-based sensing layers as a scalable, minimally invasive solution for Structural Health Monitoring in aerospace composites.
Institutions: University of Bologna, Politecnico di Milano
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Funder: European Commission
Awards: G2649423451, G8241317656, G972786147
OpenAlex ID: W4415093639
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