Characterization of used Light Weight Components of an Aircraft

Mabuza, Boy; Vaal University of Technology; South Africa

Mabuza, B.R.; Vaal University of Technology; South Africa
Nyambeni, N.; Vaal University of Technology; South Africa

ID: ECNDT-0388-2018
Session: Eddy Current-Application 1
Room: H2
Date: 2018-06-15
Time: 09:20 - 09:40

The paper is dedicated to the characterization of Piper Cherokee nose landing gear trunnions and DC-9 Main wheel. It also aims to detect surface and subsurface cracks in these nonmagnetic metal components. Aircrafts are exposed to strong forces, moisture and changing temperatures and thus characterization of the components and inspection for possible cracks is crucial. Characterization provides information about the composition, structure and defects of a material.

The X-ray Fluorescence spectrometer is used for the elemental analysis in these two components. This is an X-ray spectrometric technique for elemental analysis of a wide variety of materials. It is done to ascertain that these solid samples are the right materials for the aerospace.

Eddy current testing method used to inspecting these components for fatigue cracks is an important tool for flight safety. The sensitivity to characterize defects and other parameters can be improved by a choice of probes and operation frequency. The inspection was performed using an Olympus Nortec 500S flaw detector that displays and stores Eddy current inspection data collected by a probe.

The reliability of capability of the X-ray Fluorescence spectrometer and Eddy current testing method were confirmed in this study. The results are presented and discussed.
Keywords: Piper Cherokee, nonmagnetic metal components, Eddy current testing method, X-ray Fluorescence, spectrometer, flaw detector.