Monitoring of Torque Induced Strain in Composite Shafts with Embedded and Surface-Mounted Optical Fiber Bragg Gratings. - Maria Konstantaki; Georgios Violakis; Georgios A. Pappas; Thomas Geernaert; Nikos Korakas; Nikos Tiriakidis; Thomai Tiriakidi; Kosmas Tiriakidis; Hugo Thienpont; Francis Berghmans; John Botsis; Stavros Pissadakis (Sensors, 2021)