<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></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.

Evaluation of Impact Damage in Composite Structures Using Ultrasonic Testing

Institute of Fundamentals of Machinery Design

Fatigue of Aircraft Structures

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Evaluation of Impact Damage in Composite Structures Using Ultrasonic Testing"}

Barely visible impact damage is one of the problems commonly occurring in composite elements during an aircraft operation. The authors described the mechanisms...

Evaluation of Impact Damage in Composite Structures Using Ultrasonic Testing

Published Online: Jun 28, 2019

Page range: 82 - 92

DOI: https://doi.org/10.2478/fas-2018-0008

Keywords
impact damage, composite structures, non-destructive testing, ultrasonic testing, image analysis

© 2019 Angelika Wronkowicz-Katunin et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Evaluation of Impact Damage in Composite Structures Using Ultrasonic Testing

Published Online: Jun 28, 2019

Page range: 82 - 92

DOI: https://doi.org/10.2478/fas-2018-0008

Keywordsimpact damage, composite structures, non-destructive testing, ultrasonic testing, image analysis

© 2019 Angelika Wronkowicz-Katunin et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
impact damage, composite structures, non-destructive testing, ultrasonic testing, image analysis