DEFECT DETECTION IN COMPOSITE SAMPLES USING THERMOGRAPHIC TECHNIQUES

Authors
  1. Letal, G.
  2. Finlayson, R.D.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
Thermography has shown properties that should make this nondestructive testing technique useful for locating defects in composite materials. It is relatively fast, uses no hazardous materials, and no messy couplant is required. These attributes make it an attractive complementary inspection to traditional techniques, such as radiography or ultrasonics. In order to perform thermographic testing an infrared camera and a heat source are required. There are three main types of heat sources used to generate the heat for the inspection: a line heat source, a constant area heat source and a pulsed heat source. Each of these is discussed as well as the advantages and disadvantages of one sided and two-sided inspections.
Report Number
DREP-TM-94-06 — Technical Memorandum
Date of publication
01 Mar 1994
Number of Pages
29
DSTKIM No
94-04634
CANDIS No
144234
Format(s):
Hardcopy;Originator's fiche received by DSIS

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