Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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A Study on the Measurement of In-plane Deformations by using Electronic Speckle Pattern Interferometry and Finite Element Method

전자 스페클 간섭법과 유한요소법을 이용한 면내변형의 측정에 관한 연구

  • 강형수 (경북도립 경도대학 차량기계학과) ;
  • 조기현 (전주공업대학 기계과) ;
  • 김홍석 (제주산업정보대학) ;
  • 정형길 (경북도립 경도대학 차량기계학과)
  • Received : 2002.04.13
  • Accepted : 2002.08.20
  • Published : 2002.08.31
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Abstract

In-plane ESPI(Electronic Speckle Patten Interferometry)was devised to measure in~plane defamation and rotation of a specimen with laser in this study. The conventional measuring methods of surface deformations such as the strain gauge have many demerits because they are contact and point-to-point measuring ones. But that ESPI is noncontact, nondestructive and whole field measuring method can overcome previous disadvantages. We used ESPI which is sensitive to in-plane displacement for measuring in-plane deformations of a disk. First of all, the system calibration was done due to an in-plane rotation before getting deformations of a disk. Finally we showed good agreement between theexperiment results and those of the FEA(Finit Element Analysis).

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