Abstract
Certain transparent materials and certain strained plastics demonstrate the phenomenon of double refraction or birefringence. They divide an incident ray of light into two beams which travel at different speeds through the material. This means that one beam will be retarded in relation to the other while traveling through the plastic. In addition, the two beams transmitted through the doubly refractive materials are polarized at right angles to each other. The direction of polarization corresponds to the direction of principal strains or stress in the materials. These materials make the stress visible as colored fringe patterns. With the aid of this technique, the stress distribution and particle amplitude on four types of help wavelength velocity transformers (namely stepped, conical, exponential, and calenoidal) were observed and photographed. These experimental results were compared to those calculated from theory.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
