DEVELOPMENT OF AN ULTRASONIC NDE TECHNIQUE FOR STRESSED AND UNSTRESSED GRP SPECIMENS
Source abstract
Abstract
Abstract Composite materials, particularly E-Glass in the form of "Chop Strand Mat" in a polyester resin arc widely used for the fabrication of pressure vessels and pipework in the Petrochemical Industry. This paper presents details of a potential Non-Destructive Evaluation (NDE) method for the in-service assessment of components manufactured from this type of composite. The method uses ultra-sonic techniques. Preliminary tests show that the change in pulse velocity, and the change in pulse attenuation (measured in both the time domain and frequency domain) can be related to the load and load history of specimens subjected to tensile loading. Similar trends have been observed in specimens subjected to tensile-tensile cyclic loading. KEY WORDS: Glass reinforced plasticacoustic emissionultrasoundpressure vesselsultrasonic attenuation
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Research context
OpenAlex topics: Metallurgy and Material Forming · Ultrasonics and Acoustic Wave Propagation · Non-Destructive Testing Techniques
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References (16)
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