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Application of IR - NDT to Different Aeronautical Plastic Materials
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From Flir Systems Incorporated
The application of IR Non Destructive Testing to three thermoplastics (HDPE, PVC & PMMA) and one thermoset composite material (GFRP) is the target of the work. IR Non Destructive Testing is fast, noncontact, safe and is considered as one of the most useful techniques for detection and evaluation of aeronautical plastic material defects. The response of the surface temperature to heating has been used to detect subsurface features of defects by means of the plastic sample cooling sequence. Low thermal diffusivity and effusivity of plastics shows a slow process of heat conduction in samples tested. Logarithmic scale of surface temperature contrast of the samples vs. time is a straight line with a slope ~-0.5 for each pixel within the thermal image located on a free defects area. Products & Services
Thermal imagers detect heat patterns in the infrared wavelength (1 micron to 100 micron) spectrum.
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Thermography has been used primarily as a qualitative adjunct to traditional NDT techniques. However, recent advances in analytical methods and dedicated hardware have enabled portable thermographic...
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Steady evolution of Non-Destructive Testing equipment has dramatically reduced the number of weld defects being sent to customers. However, even the best NDT equipment does nothing to prevent those...
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Steady state and transient tests have been carried out on different material slabs and when heat was supplied by means of Peltier cells, a temperature was recorded by a low temperature IR camera in...
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Destructive testing can be time-consuming, expensive and highly disruptive. However, it is usually an important component of forensic and consulting investigations. Water intrusion and other hidden...
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Two application studies of indoor and outdoor IR surveys applied to the diagnostic analysis of stone materials constituting Cultural Goods are described in the following. In the frame of a...
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