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Proceedings Paper

Multi-field coupled sensing network for health monitoring of composite bolted joint
Author(s): Yishou Wang; Xinlin Qing; Liang Dong; Sourav Banerjee
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Paper Abstract

Advanced fiber reinforced composite materials are becoming the main structural materials of next generation of aircraft because of their high strength and stiffness to weight ratios, and excellent designability. As key components of large composite structures, joints play important roles to ensure the integrity of the composite structures. However, it is very difficult to analyze the strength and failure modes of composite joints due to their complex nonlinear coupling factors. Therefore, there is a need to monitor, diagnose, evaluate and predict the structure state of composite joints. This paper proposes a multi-field coupled sensing network for health monitoring of composite bolted joints. Major work of this paper includes: 1) The concept of multifunctional sensor layer integrated with eddy current sensors, Rogowski coil and arrayed piezoelectric sensors; 2) Development of the process for integrating the eddy current sensor foil, Rogowski coil and piezoelectric sensor array in multifunctional sensor layer; 3) A new concept of smart composite joint with multifunctional sensing capability. The challenges for building such a structural state sensing system and some solutions to address the challenges are also discussed in the study.

Paper Details

Date Published: 1 April 2016
PDF: 8 pages
Proc. SPIE 9805, Health Monitoring of Structural and Biological Systems 2016, 98052L (1 April 2016); doi: 10.1117/12.2218685
Show Author Affiliations
Yishou Wang, Xiamen Univ. (China)
Xinlin Qing, Xiamen Univ. (China)
Liang Dong, Xiamen Univ. (China)
Sourav Banerjee, Univ. of South Carolina (United States)

Published in SPIE Proceedings Vol. 9805:
Health Monitoring of Structural and Biological Systems 2016
Tribikram Kundu, Editor(s)

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