Advanced Ultrasonic System for High Performance Composite Laminate Nondestructive Evaluation
blank slide | Composite Materials | Impact test | iproms2005 paper | NCF | NDE | RIFT | Ultrasonic | UT system
A quantitative non-destructive evaluation (NDE) of impact damaged biaxial and quadriaxial non-crimp fabric (NCF) composite laminates made by resin infusion under flexible tooling (RIFT) technology using a volumetric ultrasonic (UT) pulse-echo immersion testing system was carried out. NCF composites laminates made by RIFT technology were subjected to drop weight low-velocity dynamic tests to generate impact damage in the composite material. The main scope of the UT NDE based on UT image analysis is the characterisation, measurement and comparison of the damage development in the entire laminate material volume.
The present system is a laboratory system that cannot be used as an in-situ testing system. It is possible to develop a similar system for field NDE of structures though with lower precision performance in comparison with the laboratory system. Systems for UT NDE are also developed for on-line production testing; these systems have high performance (similar to the one for laboratory testing) and a faster response but are, in general, not as flexible and adaptable to diverse testing conditions.
Ioan Liviu Baciu
Phd.Student
University Of Naples Federico II
Faculty Of Engineering
Department of Materials and Production Engineering Naples, Italy
Phd.Student
University Of Naples Federico II
Faculty Of Engineering
Department of Materials and Production Engineering Naples, Italy
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Do you think that your approach to analysis of damage could be used as a form of in-situ tesing? For example, if a yacht or aircraft has received an impact, could your system be used to determine the true extent of the damage? What is the current procedure for such testing?