Nonparasitic behavior of embedded triboluminescent sensor in multifunctional composites
Abstract
Bio-inspired In situ Triboluminescent Optical Fiber (ITOF) sensors are embedded into the composites for real-time distributed damage monitoring. Real-time damage sensing in large composite structures is imperative to allow for necessary actions before catastrophic failure occurs. This article investigates how embedded ITOF sensors affect the tensile and flexural properties of composite laminates. ITOF sensors with diameters of 275, 570, and 1500 µm, were embedded into the carbon fibers/vinyl ester composite laminates. The ultimate tensile strength and the shear strength of composites with embedded 275 µm reduce by about 0.15% and 1.41%, respectively when embedded in 0° direction. Small-sized sensors have a moderate adverse effect on tensile properties of composite, particularly in the direction perpendicular to the ITOF sensor. Additionally, the ability of the varying ITOF sensors to monitor the low velocity impact damage in composites was assessed. Small-sized sensors demonstrate nonparasitic behavior in multifunctional composites when embedded in 0° direction.
Publication Title
Composites Part A: Applied Science and Manufacturing
Recommended Citation
Shohag, M., & Okoli, O. (2019). Nonparasitic behavior of embedded triboluminescent sensor in multifunctional composites. Composites Part A: Applied Science and Manufacturing, 116, 114-125. https://doi.org/10.1016/j.compositesa.2018.10.029
