Digitally focused array ultrasonic testing technique for carbon fiber composite structures

8th International Scientific Conference "Issues of Physics and Technology in Science, Industry and Medicine"

物理学;工业技术;医药卫生

Salchak, Y.^1 ; Zhvyrblya, V.^1 ; Sednev, D.^1 ; Lider, A.^1

National Research Tomsk Polytechnic University, Tomsk

634050, Russia^1

关键词: Carbon fiber composite;    Composite fibers;    Creep and fatigue;    Design flexibility;    Different mechanisms;    Focused arrays;    Structure component;    Ultrasound testing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/135/1/012037/pdf
DOI  :  10.1088/1757-899X/135/1/012037

来源: IOP

【 摘 要 】

Composite fiber reinforced polymers are highly promising structures. At present, they are widely used in different areas such as aeronautics and nuclear industries. There is a great number of advantages of composite structures such as design flexibility, low cost per cubic inch, resistance to corrosion, lower material costs, lighter weight and improved productivity. However, composites degradation may be caused by different mechanisms such as overload, impact, overheating, creep and fatigue. Comparing to inspection of other materials some unique consideration is required for testing and analysis. Ultrasound testing is the most common method for inspection of composite structures. Digitally Focused Array Technology is considered as novel approach which enables fast and effective quantitative automatic testing. In this study new methodology of quality assurance of composite structure components based on DFA is performed.