Please use this identifier to cite or link to this item:
|Title:||Determination of necking zone using laser speckle|
|Authors:||Tay, C.J. |
Whole field deformation
|Source:||Tay, C.J.,Shang, H.M.,Kang, B.L. (1996-02). Determination of necking zone using laser speckle. Strain 32 (1) : 9-12. ScholarBank@NUS Repository.|
|Abstract:||This paper presents a whole field laser speckle method for the measurement of the necking zone on the surface of metallic specimens. The method employs an expanded laser beam to illuminate the test object. Diffracted images are recorded on a high resolution photographic film and subsequently filtered using pointwise filtering. The intensity of the diffracted halo is measured with a photo-sensor and the intensity distributionon the specimen yields information on the necking zone of the test object. The technique is applied to a flat tensile specimen with two circular notches at the central portion. Measured necking zone is compared with results obtained by other conventional methods.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 9, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.