Paper Title:
Structural Health Monitoring of Composite Structures Using Guided Lamb Waves
  Abstract

Structural Health Monitoring (SHM) of aircrafts is of great relevance in the present age aircraft industry. The present study demonstrates three techniques that have the potential for the SHM of multi-layered composite structures. The first technique is based on multi-transmitter-multireceiver (MTMR) technique with tomographic methods used for data reconstruction. In the MTMR, the possibility of SHM using algebraic reconstruction techniques (ART) for tomographic imaging with Lamb wave data measured in realistic materials is examined. Defects (through holes and low velocity impact delaminations) were synthetic and have been chosen to simulate impact damage in composite plates. The second technique is a single-transmitter-multi-receiver (STMR) technique that is more compact and uses reconstruction techniques that are analogous to synthetic aperture techniques. The reconstruction algorithm uses summation of the phase shifted signals to image the location of defects, portions of the plate edges, and any reflectors from inherent structural features of the component. The third technique involves a linear array of sensors across a stiffener for the detection of disbanded regions.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
759-764
DOI
10.4028/www.scientific.net/KEM.321-323.759
Citation
K. Balasubramaniam, B.V. S. Sekhar, J. V. Vardan, C.V. Krishnamurthy, "Structural Health Monitoring of Composite Structures Using Guided Lamb Waves", Key Engineering Materials, Vols. 321-323, pp. 759-764, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wen Zhong Qu, Li Xiao
Abstract:Structural health monitoring (SHM) is an emerging research area with multiple applications. Lamb waves are ultrasonic elastic waves that...
1095
Authors: Z. Sharif-Khodaei, M.H. Aliabadi
Abstract:The concept of damage detection using sensors in composite panels is of growing interest, due to the reduction in maintenance activity and...
29
Authors: S. Saravanan, K.R. Natarajan, J.L. Yang, B. S. Wong, N. Q. Guo
Abstract:This paper is aimed at experimentally developing an in-situ macro-fibre composite (MFCTM) piezoelectric transducer sparse array...
267
Authors: Han Hui Xu, Chun Guang Xu, Li Jiu Wang
Chapter 1: Materials Science and Engineering
Abstract:The edge of material loss is crucial for material loss evaluation. Lamb wave tomography and model-based edge detecting have been used in...
201