Experiments of Infrared Thermography NDT in Composite Materials with Honeycomb Sandwich Structure

Cui Qin Wu; Wei Ping Wang; Qi Gang Yuan; Yan Jun Li; Wei Zhang; Xiang Dong Zhang

doi:10.4028/www.scientific.net/AMR.311-313.127

Paper Titles

Foundation of Service Life Prediction Model of Sulfate Attack in Concrete
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Preparation of Epoxy Resin Composites by Chitosan Modified Montmorillonite
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Development and Application of High-Valued Wood Products Made of Fast-Growing Poplar
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A New Preparation Method of Fe-WC Composite Ceramic Powder through Ball Milling
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Experiments of Infrared Thermography NDT in Composite Materials with Honeycomb Sandwich Structure
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Study on the Preparation, Structure and Performances of Antibacterial PET Masterbatch
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Synthesis and Infrared Emisstivity Properties of CdS/ZnS/Al Composite Material with Microemulsions
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Structure and Infrared Radiation Properties of Metal Oxides-Doped Cordierites Using Graded Sintering Synthesis
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Dynamic Response Analysis on Efficacy of CFG-Pile in Different Height Embankment
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Experiments of Infrared Thermography NDT in Composite Materials with Honeycomb Sandwich Structure

Abstract:

To estimate the disbond defects of the carbon fiber composite materials with honeycomb sandwich structure applied in the aerospace, active infrared thermographic NDT (non-destructive testing) is researched. The specimen with known disbond defects is detected by an active infrared thermography system. The specimen is stimulated by a pulse heating source. Based on the thermal wave propagation theory, the surface temperature of the specimen contained defects will differ from the surrounding sound area because of their different thermal-physical properties. The surface temperature is monitored using infrared camera and analyzed by a computer in the time domain. The experiment results show that the active infrared thermographic NDT is rapid, effective and intuitive for detecting the disbond defects in composite materials with honeycomb sandwich structure.