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Reliability Analysis of CFRP-Packaged FBG Sensors Using FMEA and FTA Techniques

Authors :
Zheng Liu
Yongjie Li
Nan Zhang
Zhongwei Liang
Fangyi Li
Source :
Applied Sciences, Vol 11, Iss 22, p 10859 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

Carbon fiber-reinforced plastics (CFRP)-packaged fiber Bragg grating (FBG) sensors are widely used in full-scale structural testing of wind turbine blades (WTBs). However, the specific process to make CFRP-packaged FBG sensors, such as packaging, bonding, welding, etc., are mainly manually operated, and no unified standard or rule has been formed yet. Non-standard specific processes, coupled with complex stress distribution, unstable working environments, etc., result in the CFRP-packaged FBG sensors having various failures with time, resulting in inaccurate measurements. Thus, the need to carry out related failure analysis is urgent. This paper therefore performed a reliability analysis for CFRP-packaged FBG sensors using failure mode and effects analysis (FMEA) and fault tree analysis (FTA) techniques. The results provide an important basis towards analyzing performance degradation and functional failures for CFRP-packaged FBG sensors.

Details

Language :
English
ISSN :
20763417
Volume :
11
Issue :
22
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.7a82c1897a2e44d68ec347fc03ad1fc1
Document Type :
article
Full Text :
https://doi.org/10.3390/app112210859