作者：Dennis Roach;

作者单位：

刊名：HIGH-PERFORMANCE Composites

ISSN：1081-9223

出版年：2008-01-05

卷：16

期：4

起页：72

止页：75

分类号：TQ175

语种：英文

关键词：

内容简介

AANC experiments test how well damage can be detected in composite parts. Composites have many advantages as structural aircraft materials - among them, high specific strength and stiffness and resistance to damage by fatigue loading, coupled with corrosion resistance and low weight. These factors offer great potential for economic savings associated with reduced maintenance and fuel consumption. But the rapidly increasing use of composites in primary structure (see p. 76, this issue) has brought with it the challenge of making sure damage inspection can keep pace. Accurate nondestructive inspection (NDI) methods are a necessity to ensure aircraft airworthiness and passenger safety. Traditionally, tap tests and a few ultrasonic-based inspection methods have been used to inspect composite structures. But recent developments, including new and more advanced NDI techniques, have increased the number of available inspection options. Over the last several years, a series of experiments have been designed and implemented to assess how well both conventional and advanced NDI techniques can detect voids, disbonds, delaminations and impact damage in honeycomb structure, solid laminates and adhesively bonded structures.