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In sonic IR imaging, a major problem is exploring the heating characteristics of crack vicinity to guide the optimization of the test conditions. In this paper, the crack's heating characteristics of the metallic plate with an artificial fatigue crack has been studied. Experimental results showed that the during ultrasonic excitation the temperature rise of crack vicinity at the plate's excitation...
Detection reliability of sonic infrared imaging is one of the increasingly important aspects for out of lab applications. And for the detection reliability evaluation, probability of detection (POD) for different defects under given test conditions has been successfully used as an accepted quantitative measurement. In this study, we test a set of C45 ferritic steel plates with artificial fatigue cracks...
Probability of detection (POD) for defects under given test conditions is an important statistical technique for the detection reliability assessment. In this study, we investigate a set of 45 steel specimens with fatigue cracks in different lengths. Experimental results show that the increase of the crack length will enhance the crack heating response, and the logarithmic relationship between the...
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