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S.D, Anitha, S, Malathi, M, Supriya, Pratap, Bheem. (1404). Analysis of Fiber Bragg Grating Sensor for CFRP Beam Crack Growth. , (), -. doi: 10.22059/ceij.2025.391496.2266
Anitha Kumari S.D; Malathi S; Supriya M; Bheem Pratap. "Analysis of Fiber Bragg Grating Sensor for CFRP Beam Crack Growth". , , , 1404, -. doi: 10.22059/ceij.2025.391496.2266
S.D, Anitha, S, Malathi, M, Supriya, Pratap, Bheem. (1404). 'Analysis of Fiber Bragg Grating Sensor for CFRP Beam Crack Growth', , (), pp. -. doi: 10.22059/ceij.2025.391496.2266
S.D, Anitha, S, Malathi, M, Supriya, Pratap, Bheem. Analysis of Fiber Bragg Grating Sensor for CFRP Beam Crack Growth. , 1404; (): -. doi: 10.22059/ceij.2025.391496.2266

Analysis of Fiber Bragg Grating Sensor for CFRP Beam Crack Growth

Civil Engineering Infrastructures Journal
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 26 شهریور 1404    اصل مقاله (1.61 M)
شناسه دیجیتال (DOI): 10.22059/ceij.2025.391496.2266
نویسندگان
Anitha Kumari S.D1؛ Malathi S2؛ Supriya M1؛ Bheem Pratap* 3
1Department of Civil Engineering, M S Ramaiah University of Applied Sciences, 560058, India
2Department of Electronics and Communication Engineering, Graphic Era (Deemed to be University), Dehradun, Uttarakhand-248002, India
3Department of Civil Engineering, Graphic Era (Deemed to be University), Dehradun, Uttarakhand-248002, India
چکیده
This study investigates the use of a Fiber Bragg Grating (FBG) sensor to measure strain in Carbon Fiber Reinforced Polymer (CFRP)-strengthened concrete beams. Finite element analysis in Abaqus™ simulates three-point bending tests to compare the behavior of Reinforced Cement Concrete (RCC) and CFRP beams under mechanical and thermal loading. The objective is to evaluate deflection progression until crack initiation. Simulations reveal that CFRP beams exhibit an 86% reduction in stress and strain fluctuations compared to conventional RCC beams. FBG sensor data from numerical models show strain sensitivities of 1.81 µm/µƐ for RCC and 1.21 µm/µƐ for CFRP beams, confirming the sensor’s effectiveness in monitoring structural response.Thermal strain sensitivity of the simulated sensors is 1.72 nm/°C for RCC beams and 1.19 nm/°C for CFRP beams. CFRP-strengthened beam showed a significantly reduced displacement of 0.0727 mm. The proposed FBG strain sensor can be used to measure micro strains with small amplitudes in harsh environments.
کلیدواژه‌ها
Bragg Grating؛ Fiber sensor؛ Optical sensor and Structural health Monitoring
آمار
تعداد مشاهده مقاله: 37
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