Application of Determination of Principal-Stress Directions by Color Phase Shifting Technique to Model Containing Isotropic Points |
| Journal |
Key Engineering Materials (Volumes 326 - 328) |
| Volume |
Experimental Mechanics in Nano and Biotechnology |
| Edited by |
Soon-Bok Lee and Yun-Jae Kim |
| Pages |
75-78 |
| DOI |
10.4028/www.scientific.net/KEM.326-328.75 |
| Online since |
December, 2006 |
| Authors |
Pichet Pinit,
Eisaku Umezaki
|
| Keywords |
Color Phase Shifting, Dark-Field Plane Polariscope, Isoclinic Parameter, Isotropic Point, Phase Unwrapping, Photoelasticity, Principal-Stress Directions |
| Abstract |
This paper presents an application of a new point-wise technique for unwrapping the
isoclinic parameter determined by a four-step color phase shifting. The unwrapping technique is
based on a largest region in a binary image that corresponds to a largest visible-wrapped period of
the computed isoclinic parameter. The largest region is obtained using an intersection operation
between the extended ranges of the computed isoclinic parameter. The method uses four raw
photoelastic fringe images. The technique is applied to a circular ring containing isotropic points
subjected to diametral compression. Results show the method provides the correct isoclinic
parameter in the true interval over the entire domain. |
| Full Paper |
Get the full paper by clicking here
|
| Preview |
Free first page example |
