Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study of Automated Analysis of In-Plane Strain and Stress of Center Cracked Plate by Laser Speckle Photography Method

레이저 스페클 사진법에 의한 중앙 균열판에 있어서 스트레인, 스트레스 자동화 해석에 관한 연구

  • Kim, Gyeong-Seok (Dept.of Mechanical Design Engineering, Chosun University) ;
  • Na, Gi-Dae (Dept.of Mechanical Design Engineering, Chosun University) ;
  • Jung, Nak-Gyu (Dept.of Mechanical Design Engineering, Chosun University) ;
  • Cha, Yong-Hun (Dept.of Mechanical Engineering, Chosun University) ;
  • Jung, Un-Gwa (Dept.of Nuclear Engineering, Chosun University)
  • 김경석 (조선대학교 공과대학 기계설계공학과) ;
  • 나기대 (조선대학교 공과대학 기계설계공학과) ;
  • 정낙규 (조선대학교 공과대학 기계설계공학과) ;
  • 차용훈 (조선대학교 공과대학 기계공학과) ;
  • 정운관 (조선대학교 공과대학 원자력공학과)
  • Published : 1991.12.01
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Abstract

Laser speckle photography-one of the Laser speckle measurement methods which, recently, are used widely in various science, and engineering applications are succesfully used in the non-contact measurement of In-plaane displacement. In this study, automated measurement and analysis are tried in the laser speckle photo- graphy method using a video camera, computer control and processing, and a X-Y positioning table driven by computer controlled stepping motor. The experiment was compared with the theorecial strain and stress data from finite element method. The result showed that displacement, strain and stress can be measured more accurately and conveniently by using this approach.

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