INFRARED DETECTION TO SANDWICH STRUCTURES WITH INSIDE DEFECTS

Abstract

Abstract: The inside detection can course a difference in conduction of the heat wave which leads to a difference of the surface temperature which can be received by thermal imager in the form of images of different colours. The paper makes a research on the defects of sandwich structures including the parametric analysis under transient thermal and steady thermal conditions using finite element software depending on the theories above. By the comparison of the software simulation and the test result, the paper gives the accuracy of infrared detection to sandwich structures with defects. At the same time, some effects which may affect the testing result are analysed and some suggestions about using infrared detection to sandwich defects are made.

Key words: sandwich, defect, infrared detection, finite element analysis

CLC Number:

TB332
TQ11

YU Yi, LIU Wei-qing, WAN Li, FANG Hai. INFRARED DETECTION TO SANDWICH STRUCTURES WITH INSIDE DEFECTS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(8): 55-59.

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