Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Phase unwrapping method for three-dimensional stress analysis by scattered-light photoelasticity with unpolarized light

Not Accessible

Your library or personal account may give you access

Abstract

In scattered-light photoelasticity with unpolarized light, the secondary principal stress direction ψ and the relative phase retardation ρ in a three-dimensional stressed model with rotation of the principal stress axes can be obtained by use of Stokes parameters. For completely automated stress analysis, measurements of the total relative phase retardation and the secondary principal stress direction over the entire field are required, and it is necessary to unwrap ψ and ρ. A phase unwrapping method is thus proposed for the determination of these values based on scattered-light photoelasticity. The values are easily obtained via an arctangent function, overcoming the error associated with the quarter-wave plate by employing an incident light of different wavelengths. The proposed technique provides automated and nondestructive determination of the total relative phase retardation and the secondary principal stress direction in a model exhibiting rotation of the principal stress axes.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
Three-dimensional stress distribution measurement in a model of the human ankle joint by scattered-light polarizer photoelasticity

T. Kihara, M. Unno, C. Kitada, H. Kubo, and R. Nagata
Appl. Opt. 24(20) 3363-3367 (1985)

Measurement of 3-D stress distribution by a scattered-light method using depolarized incident light

T. Kihara, H. Kubo, and R. Nagata
Appl. Opt. 18(3) 321-327 (1979)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (21)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved