Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)
- Volume 5 Issue 3
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- Pages.187-192
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- 2002
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
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
- Received : 2002.04.13
- Accepted : 2002.08.20
- Published : 2002.08.31
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).