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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 12 — Apr. 20, 2004
  • pp: 2400–2408

Digital speckle pattern interferometry for deformation analysis of inner surfaces of cylindrical specimens

Murukeshan Vadakke Matham and N. Sujatha  »View Author Affiliations


Applied Optics, Vol. 43, Issue 12, pp. 2400-2408 (2004)
http://dx.doi.org/10.1364/AO.43.002400


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Abstract

Deformation study of curved engineering and technical surfaces, such as pipes and pressure vessels, has gained much importance in the recent past. Speckle interferometric techniques and their electronic and digital analogs, which are whole field techniques, have been effectively applied for practical nondestructive testing applications over the years. However, little work has been done that discusses the speckle fringe formation with a fruitful theoretical formulation to study deformation analysis of curved surfaces. We propose an extended theory for speckle fringe formation on curved surfaces, which can be applied to the study of curved engineering and technical specimens under various loading conditions such as in-plane, out-of-plane, and out-of-plane shear configurations. Simulated contours are generated by use of finite element models with similar loading conditions, and the data are analyzed and compared with the obtained experimental results.

© 2004 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.6150) Imaging systems : Speckle imaging
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry

History
Original Manuscript: November 20, 2003
Published: April 20, 2004

Citation
Murukeshan Vadakke Matham and N. Sujatha, "Digital speckle pattern interferometry for deformation analysis of inner surfaces of cylindrical specimens," Appl. Opt. 43, 2400-2408 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-12-2400

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