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Automated NDT Inspection Equipment Manufacturers and World-Wide Suppliers |
| Introduction Composites have many advantages as aircraft structural materials and for this reason their use is becoming increasingly widespread. Fragility of composite material to impact loading limits their application in aircraft structures. In particular, low velocity impacts can cause a significant amount of delamination, even though the only external indication of damage may be a very small surface indentation. This type of damage is often referred to as barely visible impact damage (BVID), and it can cause significant degradation of structural properties. | |
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As can be seen in the images above, the carbon fiber panel seems free of damage, however an ultrasonic c-scan of the component reveals a large area of serious structural damage. Quantification of materials is carried out by manufacturing simple sheets of material and using drop-weight impacting to generate various controlled impact scenarios, ultrasonic c-scans are then carried out to assess the internal structural damage caused by each of the impact scenarios. |
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