Innovative design and sensing performance of a novel large-strain sensor for prestressed FRP plates

Changyuan Liu; Xin Wang; Xinquan Chang; Zhishen Wu; Huang Huang; Mohammad Noori; Wael A. Altabey

Developments in the Built Environment (Dec 2024)

Innovative design and sensing performance of a novel large-strain sensor for prestressed FRP plates

Changyuan Liu,
Xin Wang,
Xinquan Chang,
Zhishen Wu,
Huang Huang,
Mohammad Noori,
Wael A. Altabey

Affiliations

Changyuan Liu: Key Laboratory of C & PC Structures Ministry of Education, National and Local Unified Engineering Research Center for Basalt Fiber Production and Application Technology, Southeast University, Nanjing, 211189, China
Xin Wang: Key Laboratory of C & PC Structures Ministry of Education, National and Local Unified Engineering Research Center for Basalt Fiber Production and Application Technology, Southeast University, Nanjing, 211189, China; Corresponding author. Key Laboratory of C & PC Structures Ministry of Education, National and Local Unified Engineering Research Center for Basalt Fiber Production and Application Technology, Southeast University, Nanjing, 211189, China.
Xinquan Chang: Key Laboratory of C & PC Structures Ministry of Education, National and Local Unified Engineering Research Center for Basalt Fiber Production and Application Technology, Southeast University, Nanjing, 211189, China
Zhishen Wu: Key Laboratory of C & PC Structures Ministry of Education, National and Local Unified Engineering Research Center for Basalt Fiber Production and Application Technology, Southeast University, Nanjing, 211189, China; Corresponding author. Key Laboratory of C & PC Structures Ministry of Education, National and Local Unified Engineering Research Center for Basalt Fiber Production and Application Technology, Southeast University, Nanjing, 211189, China.
Huang Huang: School of Civil Engineering, Henan University of Technology, Zhengzhou, 450001, China
Mohammad Noori: School of Civil Engineering, Henan University of Technology, Zhengzhou, 450001, China; Department of Mechanical Engineering, California Polytechnic State University, San Luis Obispo, CA, USA; School of Civil Engineering, University of Leeds, Leeds, LS2 9JT, UK; Corresponding author. Department of Mechanical Engineering, California Polytechnic State University, San Luis Obispo, CA, USA.
Wael A. Altabey: Department of Mechanical Engineering, Faculty of Engineering, Alexandria University, Alexandria, 21544, Egypt

Journal volume & issue: Vol. 20
p. 100567

Abstract

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Owing to the low measuring range of traditional fiber Bragg grating (FBG) sensors and the complexity, imprecision, and lack of practicality in existing large-strain sensors, this paper introduces a novel type of large-strain sensor based on pre-relaxation and continuous sensing technology. This design aims to realize the whole-process strain monitoring of prestressed fiber reinforced polymer (FRP) plates. Static tensile tests were conducted on 9 large-strain sensor specimens. The effects of pre-relaxation degree, section number, pre-tension time, and prestressing level were evaluated. The results reveal that, the pre-relaxed sensor, proved its efficacy in capturing the strain pertinent to the post-tensioned operational state of the FRP plate, and a sensing performance of up to 18,923 με can be facilitated and further extended by a pre-relaxation and continuous sensing technique. Moreover, it is recommended that during the fabrication of the large-strain sensor, two pre-tensions be applied, with a prestressing level between 115% and 125% of the pre-relaxation degree.

Published in Developments in the Built Environment

ISSN: 2666-1659 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General); Technology: Building construction
Website: https://www.journals.elsevier.com/developments-in-the-built-environment/

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