Structure health monitoring of composites joint reinforced by Acoustic Emission based Smart Composite Fasteners

Li，Wenhao1,2,3; Guo，Shijun1; Liu，Yiding4,5; Shen，Zhengquan1; Xiong，Yi3; Gao，Fei2; Hughes，Darren J.5; Lin，Jing2

2022-08-01

10.1016/j.coco.2022.101213

COMPOSITES COMMUNICATIONS   Impact Factor & Quartile

2452-2139

This paper proposed an Acoustic Emission (AE) based Smart Composite Fastener (SCF) concept for health monitoring of bonded/bolted composite single lap joints. The SCF was made of 3D-printed continuous carbon fibre reinforced thermoplastic materials with an embedded piezoelectric sensor. The SCF detected signals were found to be successfully associated with AE damage sources during the loading period. It was discovered that the adhesive crack/delamination AE sources resulted in burst-type signals with identifiable onset and end, whereas AE sources of frictional sliding between the SCF and fastener holes resulted in continuous-type signals producing broad frequency content. Furthermore, the amplitudes of the burst-type signal measured from the network of SCFs were successfully correlated with the locations of the damages. In the direction away from the damage, the amplitudes of the burst-type voltages measured from the SCF showed a decreasing trend, with 10195mv, 9,995mv, and 7,426mv respectively. Generally, the research in this paper explores the correlation between the voltage signal from a damaged AE source and the SCF, providing the feasibility of using a novel SCF for health monitoring in composite joint structures.

Acoustic emission Composite joint Smart composite fastener Structural health monitoring

English

Others

Natural Science Foundation of Ningbo[2021J012];

MATERIALS SCIENCE

2-s2.0-85132544732

Scopus

1.Centre of Aeronautics,School of Aerospace,Transport and Manufacturing,Cranfield University,Cranfield,UK,MK43 0AL,United Kingdom
2.Ningbo Institute of Technology,Beihang University,Ningbo,315832,China
3.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen,518055,China
4.School of Physics,Engineering and Computer Science,University of Hertfordshire,Hatfield,UK,AL10 9AB,United Kingdom
5.WMG,University of Warwick,UK,CV4 7AL,United Kingdom

Li，Wenhao,Guo，Shijun,Liu，Yiding,et al. Structure health monitoring of composites joint reinforced by Acoustic Emission based Smart Composite Fasteners[J]. COMPOSITES COMMUNICATIONS,2022,33.

Li，Wenhao.,Guo，Shijun.,Liu，Yiding.,Shen，Zhengquan.,Xiong，Yi.,...&Lin，Jing.(2022).Structure health monitoring of composites joint reinforced by Acoustic Emission based Smart Composite Fasteners.COMPOSITES COMMUNICATIONS,33.

Li，Wenhao,et al."Structure health monitoring of composites joint reinforced by Acoustic Emission based Smart Composite Fasteners".COMPOSITES COMMUNICATIONS 33(2022).