Open AccessOn-line Monitoring by Acoustic Emission of Butt Joint Structure on the Composite Fuselage Frame
Author(s) -
Xuanhao Qi,
Yunyi Yang,
Woo Kang,
Q Wang,
Guangtao Zhao
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/739/1/012043
Subject(s) - acoustic emission , fuselage , composite number , frame (networking) , structural engineering , butt joint , line (geometry) , joint (building) , acoustics , materials science , engineering , composite material , mechanical engineering , physics , geometry , mathematics
Acoustic emission (AE) technique is an online and dynamic non-destructive testing technology by diagnosing sounds, applicable to damage identification of all sorts of materials and structures. In order to fulfill the requirement of on-line monitoring for butt joint structure on the composite fuselage frame in static loading, Acoustic Emission (AE) is employed in this article. The experiment research is focused on examining the damage evolution process of the specimen subjected to mechanical tests by constantly monitoring the AE and strain responses. Combined with strain results, the recorded acoustic signals are analyzed using AE characteristic parameters such as AE amplitude and AE accumulative energy to identity five different damage stages and conclude the corresponding damage style during the entire test. The outcomes of this article can be available for supplementation and improvement of the current on-line non-destructive testing research for composite structures.