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주기적 열파에 의한 SM45C 금속 시험편 이면 결함 검출에 대한 수치해석 연구 KCI 등재

Numerical Analysis on Subsurface Defect Detection in SM45C Metal Specimen by Periodic Heat Wave

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한국기계기술학회지 (Journal of the Korean Society of Mechanical Technology)
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

Nondestructive testing is a method of inspecting particular target objects without destructing them in industrial sites. Infrared thermal imaging is one of the nondestructive testing techniques. Among them, lock-in infrared thermography technique is a technique to detect a defect by generating a temperature difference of an object using periodic heat waves. This paper deals with the development of lock-in infrared thermography technique by using numerical analysis model for SM45C metal specimens. As a result, the appropriate frequency was determined for defect detection in SM45C metal specimen by using the established thermal behavior mechanism by periodic heat wave.

저자
  • 정윤재(Department of Mechanical and Automotive Engineering of Kongju National University) | Yoon-Jae Chung
  • 김원태(Department of Mechanical and Automotive Engineering of Kongju National University) | Won-Tae Kim Corresponding Author