Abstract
Inspection of Gfrp Composites by Microwave NDE
Highlights
The functional properties, namely mechanical, thermal and electrical, of Fiber reinforced polymer (FRP) composite can be tailor made to suit an application
Inspection of Glass Fiber Reinforced Polymer (GFRP) composite with known inserted defects by near-field reflection microwave Non-destructive evaluation (NDE) technique is presented in this paper
The setup consists of Keysight Vector Network Analyzer, coaxial cables, open-ended rectangular waveguide probe, waveguide calibration kit and sample under test backed by conductor [6]
Summary
The functional properties, namely mechanical, thermal and electrical, of Fiber reinforced polymer (FRP) composite can be tailor made to suit an application. This feature of FRP composites makes them a suitable choice for most of the aerospace and defence applications. Depending on the type of material, their characteristic features and accessibility of the test object, suitable techniquesare employed [2].Microwave Non-destructive evaluation (MWNDE) is an emerging NDE technique for characterizing and inspecting the dielectric structures. Areas of application of microwave NDE include dielectric material characterization, monitoring or determining thickness variation, defect detection and bond quality inspection. Inspection of Glass Fiber Reinforced Polymer (GFRP) composite with known inserted defects by near-field reflection microwave NDE technique is presented in this paper. Results of inspected structures by swept frequency microwave NDE technique in the frequency range of 8.2-18GHz are presented
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