Time- and temperature-dependent stress-strain analysis using white-light photoviscoelasticity

Satoru Yoneyama; Masahisa Takashi; J. Gotoh

doi:10.1117/12.269864

20 March 1997 Time- and temperature-dependent stress-strain analysis using white-light photoviscoelasticity

Satoru Yoneyama, Masahisa Takashi, J. Gotoh

Proceedings Volume 2921, International Conference on Experimental Mechanics: Advances and Applications; (1997) https://doi.org/10.1117/12.269864
Event: International Conference on Experimental Mechanics: Advances and Applications, 1996, Singapore, Singapore

Abstract

In the current photoviscoelastic techniques, a set of multiple data, at least two images under plane polarization at a single instant, are necessary to determine not only fringe order but also principal birefringence direction simultaneously over the whole field of specimen. Therefore, the current techniques cannot be applied to such problems in which the good repetition and reproducibility of experiments are not expected. In order to overcome this type of difficulties in the analysis of time dependent phenomena, the authors proposed a photoelastic method using a white incident light with a set of the three primary colors. When using this method, not only fringe order but principal birefringence direction are successfully and easily determined from a single colored image. Utilizing this method together with photoviscoelastic constitutive equations, time dependent principal stress and strain difference, also their directions are successfully obtained. In this paper, the fundamentals of the white light photoviscoelasticity are described briefly, then a successful application of the method to the analysis of an example of viscoelastic problem is shown. An example problem of a viscoelastic strip having a hole under tension at several temperatures, at which the material shows remarkable viscoelastic behavior, is successfully analyzed.

Citation Download Citation

Satoru Yoneyama, Masahisa Takashi, and J. Gotoh "Time- and temperature-dependent stress-strain analysis using white-light photoviscoelasticity", Proc. SPIE 2921, International Conference on Experimental Mechanics: Advances and Applications, (20 March 1997); https://doi.org/10.1117/12.269864

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available