3*3 Coupler-Based Mach-Zehnder Interferometer and Its Application in the Delamination Detection in FRP Composite-Reference-Cited by-同舟云学术

3*3 Coupler-Based Mach-Zehnder Interferometer and Its Application in the Delamination Detection in FRP Composite

Published:2007-05-10 Issue:4 Volume:19 Page:497-507
ISSN:1045-389X
Container-title:Journal of Intelligent Material Systems and Structures
language:en
Short-container-title:Journal of Intelligent Material Systems and Structures

Author:

Yi Jiang ¹,Ying Xu ²,Leung Christopher K.Y.³

Affiliation:

1. Department of Opto-Electronics, School of Information science and technology, Beijing Institute of Technology, Beijing 100081,

2. ShenZhen Institute of Building Research, Fu Tian district, Shen Zhen, Guang Dong, China

3. Department of Civil Engineering, Hong Kong University of Science and Technology, Clear Water Bay Kowloon, Hong Kong

Abstract

This article focuses on the development and application of a 3 * 3 coupler-based Mach-Zehnder interferometer. The software for signal demodulation is developed. Based on waveforms obtained at intermediate steps, plausible errors are analyzed and found to be small. The interferometer is then applied to the delamination detection in fiber-reinforced polymer (FRP) composites. Test results indicate the feasibility of detecting both the size and location of delamination by applying quasi-impulse loadings.

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Materials Science

Link

http://journals.sagepub.com/doi/pdf/10.1177/1045389X07076669

Reference8 articles.

1. A Model for Predicting Damage in Graphite/Epoxy Laminated Composites Resulting from Low-Velocity Point Impact

2. A Novel Fiber Optic Delamination Detection Scheme: Theoretical and Experimental Feasibility Studies

3. Impact-induced delamination of composites: a 2D simulation

4. Fibre optic damage detection in composite structures

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