Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)

  • 1994.10a
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  • Pages.529-533
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  • 1994
  • /
  • 2005-8446(pISSN)
Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

홀로그래픽 간섭무늬에 의한 변형률 측정

  • 권혁흥 (대전대학교 기계설계학과) ;
  • 조동현 (대전대학교 기계설계학과) ;
  • 김흥석 (대진대학교 물리학과) ;
  • 박승옥 (대진대학교 물리학과) ;
  • 조대근 (대진대학교 물리학과) ;
  • 권영하 (경희대학교 섬유공학과)
  • Published : 1994.10.01
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Abstract

Atrains in microstain range are measured accurately by means of holographic interometric technique. Holographic fringes of the cantilever beam subjected to out-of-plane deflection and in-plane deflection respectively are obtained experimentally. Form these fringe patterns, 3rd order polynomial of displacements is induced using polynomial regression method. And strain stress distribution could be determined from the secound derivative of this polynomial. These results agree well with FEM.

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