Detection of Flat-Bottom Holes in Conductive Composites Using Active Microwave Thermography-Reference-Cited by-同舟云学术

Detection of Flat-Bottom Holes in Conductive Composites Using Active Microwave Thermography

Published:2018-07-24 Issue:4 Volume:1 Page:
ISSN:2572-3901
Container-title:Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems
language:en
Short-container-title:

Author:

Mirala Ali¹,Foudazi Ali²,Ghasr Mohammad Tayeb²,Donnell Kristen M.³

Affiliation:

1. Applied Microwave Nondestructive Testing Laboratory (AMNTL), Electrical and Computer Engineering Department, Missouri University of Science and Technology, 210 Engineering Research Laboratory, 500 W. 16th Street, Rolla MO 65409-0040 e-mail:

2. Applied Microwave Nondestructive Testing Laboratory (AMNTL), Electrical and Computer Engineering Department, Missouri University of Science and Technology, 210 Engineering Research Laboratory, 500 W. 16th Street, Rolla, MO 65409-0040 e-mail:

3. Electrical and Computer Engineering Department, Missouri University of Science and Technology, 301 W. 16th Street, Rolla, MO 65409-0040 e-mail:

Abstract

Active microwave thermography (AMT) is an integrated nondestructive testing (NDT) technique that utilizes a microwave-based thermal excitation and subsequent thermal measurement. AMT has shown potential for applications in the transportation, infrastructure, and aerospace industries. This paper investigates the potential of AMT for detection of defects referred to as flat-bottom holes (FBHs) in composites with high electrical conductivity such as carbon fiber-based composites. Specifically, FBHs of different dimensions machined in a carbon fiber reinforced polymer (CFRP) composite sheet are considered. Simulation and measurement results illustrate the potential for AMT as a NDT tool for inspection of CFRP structures. In addition, a dimensional analysis of detectable defects is provided including a radius-to-depth ratio threshold for successful detection.

Funder

Division of Electrical, Communications and Cyber Systems

Publisher

ASME International

Subject

Mechanics of Materials,Safety, Risk, Reliability and Quality,Civil and Structural Engineering

Link

http://asmedigitalcollection.asme.org/nondestructive/article-pdf/doi/10.1115/1.4040673/6420017/nde_001_04_041005.pdf

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