The replacement of metals by composite materials is aimed at lightening the weight of parts while natively endowing them with new functionalities. The manufacturing quality of composite parts can be validated using certain non-destructive testing techniques traditionally employed to inspect welds and other metal components. However, these techniques need to be adapted to the particularities of composites and the specific nature of the defects sought. In the case of composite parts, it is often difficult to distinguish between defects and differences in material structure. Two techniques in particular are well-suited to detecting such defects: ultrasonic non-destructive testing and infrared thermography.
Interview by Youssef BELGNAOUI
Our experts :
- Philippe HENNINOT, Director, Action-NDT
- Amaury HITIER NDT Product Specialist at Evident
- Guillaume NEAU Strategy Director, Ekoscan
- Christophe PIRON European Sales Manager, Aerospace Sector, Eddyfi Technologies
- Guillaume PORS Manager of Cetim's measurement/monitoring, control and connected obiets activities
Our 8 questions
1 - Are traditional non-destructive testing techniques suitable for inspecting composite parts?
2 - What are the characteristics of the defects sought in composite materials?
3 - What are the main factors to take into account when choosing the most suitable method for industrial non-destructive testing of composite parts?
4 - What are the difficulties and specificities of using NDT on composite parts?
5 - Have new techniques been developed specifically for composites control?
6 - Can certain techniques be used in production as well as in the laboratory?
7 - Does using NDT to inspect composites require specific skills?
8 - What aspects of non-destructive testing still need to evolve to best meet the inspection requirements of composite materials?
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