Sonothermic Techniques in Nondestructive Evaluation

  • Xiaoyan HanEmail author
Reference work entry


Sonic Infrared (IR) imaging is by far the world most sensitive and fastest crack detection technique. It is a novel hybrid sensing technology that utilizes the concept of combining infrared imaging with sonic/ultrasonic excitation. It can detect closed hairline cracks in safety critical materials and structures such as airplanes. Sonic IR imaging is among the youngest members of the NDE techniques. It can be employed to detect defects in materials and structures, such as cracks, delaminations, and disbonds for both surface and subsurface features. The ultrasonic excitation is typically a fraction-of-a-second-long pulse, which causes friction heating in the defects. The temperature changes in the target due to the heating are simultaneously being imaged by an infrared camera. Thus, defects in a wide variety of materials can be identified. This method is a fast, wide-area, and true dark field imaging NDE technique.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Electrical and Computer EngineeringWayne State UniversityDetroitUSA

Section editors and affiliations

  • Ida Nathan
    • 1
  • Norbert Meyendorf
    • 2
  1. 1.Department of Electrical and Computer EngineeringUniversity of AkronAkronUSA
  2. 2.Center for Nondestructive EvaluationIowa State UniversityAmesUSA

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