RT info:eu-repo/semantics/article
T1 Structural health monitoring of composite laminates in thermoplastic induction welded joints using electromagnetic field technique
A1 Mazzeschi, Mattia
A1 Farhangdoust, Saman
A1 Cañibano Álvarez, Esteban
A1 Merino Senovilla, Juan Carlos
A1 Nuñez Carrero, Karina Carla
K1 Electromagnetic-based structural health monitoring
K1 Thermoplastic composite
K1 Induction welding
K1 Damage detection
AB This research paper explores the assessment of electrical property changes resulting from damage in a Carbon Fiber Reinforced Polymers (CFRP) laminate and its thermoplastic induction-welded joints. Controlled variations in electrical conductivity and dielectric permittivity were achieved by incorporating square Polytetrafluoroethylene (PTFE) adhesive tapes into both CFRP laminates and the bondline interfaces of induction-welded components. Two elementary and effective sensors, capable of measuring magnetic (Purely Magnetic sensor) and electric fields (Hybrid sensor), were employed to detect these property changes induced by a sinusoidal magnetic field generated by a nearby coil. Both sensors exhibited remarkable sensitivity in identifying variations induced by the smallest artificial defects, measuring 2×2 mm in size. Furthermore, the PM sensor displayed a discernible signal trend corresponding to changes in defect size ranging from 4 to 225 mm square, as well as variations in position within the thickness of the CFRP laminate, extending to a depth of 1.7 mm. These findings underscore the potential of electromagnetic-based structural health monitoring (ESHM) techniques for monitoring the condition of a thermoplastic composite structure and its induction-welded joints.
PB Elsevier
SN 0924-4247
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/73103
UL https://uvadoc.uva.es/handle/10324/73103
LA eng
NO Sensors and Actuators A: Physical, 2024, vol. 375, 115540
NO Producción Científica
DS UVaDOC
RD 22-ene-2025