复合材料结构冲击损伤的超声检测评价

Q4 Engineering

Fatigue of Aircraft Structures Pub Date : 2018-12-01 DOI:10.2478/fas-2018-0008

Angelika Wronkowicz-Katunin, K. Dragan

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引用次数: 2

摘要

在飞机运行过程中，复合材料部件的冲击损伤是常见的问题之一。阐述了复合材料结构中冲击损伤的形成和扩展机理。本文分析了冲击参数对产生的损伤的影响，即通过目视观察其可检测性以及根据超声波测试结果确定其程度。在不同冲击能量和冲击体形状组合的情况下，对CFRP试件进行了广泛的冲击损伤试验。此外，为了对获取的超声数据进行有效评价，提出了一种基于图像处理和图像分析方法的算法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Evaluation of Impact Damage in Composite Structures Using Ultrasonic Testing

Abstract Barely visible impact damage is one of the problems commonly occurring in composite elements during an aircraft operation. The authors described the mechanisms of impact damage formation and propagation in composite structures. The paper presents a performed analysis of an influence of impact parameters on the resulting damage, i.e. its detectability by means of visual observation as well as its extent determined based on ultrasonic tests results. The tests were conducted on the CFRP specimens with a wide range of impact damage cases obtained with combinations of variable impact energy and shapes of impactors. Additionally, an algorithm based on image processing and image analysis methods is proposed for the purpose of the effective evaluation of the ultrasonic data obtained.

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来源期刊

Fatigue of Aircraft Structures Engineering-Safety, Risk, Reliability and Quality

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： The publication focuses on problems of aeronautical fatigue and structural integrity. The preferred topics include: full-scale fatigue testing of aircraft and aircraft structural components, fatigue of materials and structures, advanced materials and innovative structural concepts, damage tolerant design of aircraft structure, life extension and management of ageing fleets, structural health monitoring and loads, fatigue crack growth and life prediction methods, NDT inspections, airworthiness considerations.