A New Optical Method For Determining The Stress Intensity Factor

Cao Hong; Jia Youquan; Wang Yinyan

doi:10.1117/12.941703

17 February 1987 A New Optical Method For Determining The Stress Intensity Factor

Cao Hong, Jia Youquan, Wang Yinyan

Proceedings Volume 0814, Photomechanics and Speckle Metrology; (1987) https://doi.org/10.1117/12.941703
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

This paper provides an optical method for determining the stress intensity factor. The optical properties of grating and wedge are used to form two images of a specime which stagger a small distance. The distance can be regulated stepless. Information of the partial derivative of the sum of principal stress around the crack tip is directly obtained by the shearing interference of two images and then the stress intensity factor is evaluated. This method is suited to both transparent and opaque material. Its sensitivity can be increased by multiplying technique.

Citation Download Citation

Cao Hong, Jia Youquan, and Wang Yinyan "A New Optical Method For Determining The Stress Intensity Factor", Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); https://doi.org/10.1117/12.941703

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