Composite Inspection Benefits and Challenges Using Ultrasonic NDT Solutions

Feb 08, 2019

Composite Inspection Benefits and Challenges
Using Ultrasonic NDT Solutions

Authors: François Lachance, Application Engineer and Jonathan Turcotte, Product Manager - Sonatest Ltd


Ultrasonic Non-Destructive Testing (NDT) has helped engineers inspect all sorts of composite materials for years. Whether it be traditional aluminium laminates or today's more complex carbon fibre-based composites, the ultrasonic testing (UT) technology has the ability to acoustically see through these parts and create complete inspection maps. Comprehensive volumetric integrity reports can be generated with imaging reports that are as easy to interpret as traditional X-ray. Over the years, numerous innovations helped improve efficiency, resolution and performance of UT. Nevertheless, specific challenges still exist when inspecting a composite structure using this technology. After a short introduction on UT and Linear Array, this paper will focus on some of the important inspection challenges: the dimensions and geometry of the part, the pressure for higher productivity, the variations of the acquisition conditions, the entire coverage of large surfaces as well as analysis and reporting. Likewise, we’ll describe how the newly introduced Sonatest composite inspection solution, the RSflite, a high-end linear scanning instrument, in addition to the WheelProbe2 and the UTmap software, can help. This package offers a fast, portable, battery operated option to assist the NDT professionals facing these inspection challenges, would it be at the time of manufacturing or throughout the lifetime of an equipment requiring maintenance...

Download a copy of the full white paper on composite inspection using ultrasonic NDT (1.4MB PDF).