Inspections of helicopter composite airframe structures using conventional and emerging nondestructive testing methods

Liew, Chin Kian, Veidt, Martin, Rajic, Nik, Tsoi, Kelly, Rowlands, David and Morton, Howard (2011) Inspections of helicopter composite airframe structures using conventional and emerging nondestructive testing methods. Journal of Testing and Evaluation, 39 6: 1011-1022. doi:10.1520/JTE103842


Author Liew, Chin Kian
Veidt, Martin
Rajic, Nik
Tsoi, Kelly
Rowlands, David
Morton, Howard
Title Inspections of helicopter composite airframe structures using conventional and emerging nondestructive testing methods
Journal name Journal of Testing and Evaluation   Check publisher's open access policy
ISSN 0090-3973
Publication date 2011-11
Sub-type Article (original research)
DOI 10.1520/JTE103842
Volume 39
Issue 6
Start page 1011
End page 1022
Total pages 12
Place of publication Conshohocken, PA, United States
Publisher A S T M International
Collection year 2012
Language eng
Abstract This paper presents nondestructive testing (NDT) results and analysis from the inspection of composite specimens representing typical helicopter parts. The specimens include monolithic laminates produced from carbon fiber reinforced plastic (CFRP), Nomex honeycomb core sandwich panels with CFRP skins, and CFRP frame-skin joint panels. External protection layers comprising copper mesh and fiberglass were also included in the specimens. These panels were fabricated with a wide range of defects to simulate helicopter in-service damage including delamination and skin-core disbond along with barely visible impact damage. The study aims to assess a number of conventional and emerging NDT techniques suitable for rapid in situ and off-site inspection of helicopter composite structures. The techniques considered are flash and sonic thermography, radiography, and different ultrasonic inspection modes including pulse-echo, through-transmission, and phased array. These techniques are compared on their ability to detect and characterize the fabricated defects.
Keyword Aerospace composite materials
Ultrasonics
Radiography
Thermography
Defect evaluation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published Online: 16 August 2011

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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