Analysis of Non-Destructive Composite Testing Methods for Use in the Aerospace Industry

Brigham Young university |

Analysis of Non-Destructive Composite Testing Methods for Use in the Aerospace Industry |

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ABSTRACT

The problem of how to identify defects in carbon fiber composite aircraft components is continually gaining importance as more and more manufacturers of civil aircraft are moving towards composite materials in the construction of their aircraft. This increase in the use of composites brings many new technical challenges as traditional defect detection methods are being put to the test.

This report will attempt to comparatively analyze the current commonly used methods of defect detection for composite parts based on the criteria of effectiveness of detection, time commitment, and financial impact.

The ultimate result was that Eddy Current testing was the most effective method for defect detection, however individual cases still should be considered when deciding on an ultimate method for detection.

Keywords: carbon fibers, nondestructive testing, tap testing, ultrasonic testing, x ray radiography, eddy current testing, thermography, moisture meters, bond testing, eddy current

TABLE OF CONTENTS

Introduction...............................................1

Methodology………………………….……………..3

Results…………………………………….…………….4

Discussion of Results……………….……………4

Tap Testing………………………………..4

Ultrasonic Testing………………………5

X-Ray Radiography…………………….5

Eddy Current……………………………..5

Thermographic…………………………..6

Moisture Meter………………………….6

Bond Test…………………………………..6

Conclusion…………………………………………….7

LIST OF FIGURES

Table 1: Common Defect Types………….....1

Table 2: Defect Detection Methods………2

Table 3: Comparative Results………………..4

1. INTRODUCTION

Composite materials have been used and improved for decades for a number of applications from sporting equipment to automotive parts. Since their inception, composites have been highly valued for their high strength to weight ratio, low density, and ease of...