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The paper investigates the application of active thermography for nondestructive testing of welded joints. Two measurements techniques are considered: laser spot thermography and vibrothermography. Experiments were performed on a welded carbon steel plate with welding defects. Laser spot thermography was used to reveal welding defects and vibrothermography was used to provide reference results. Both...
The paper investigates practical aspects of vibrothermographic testing. Vibrothermography is a nondestructive testing method that monitors heat produced by damage under vibration and/or ultrasonic excitation in order to evaluate the structural health. Detailed description of a prototype measurement system, that has been developed, is given together with the description of preliminary tests on a composite...
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