New digital-image correlation method and its application

Dongmei Xing; Hong-Qi Li; Zhi Wang; Jingwei Tong; Shibin Wang

doi:10.1117/12.468870

29 May 2002 New digital-image correlation method and its application

Dongmei Xing, Hong-Qi Li, Zhi Wang, Jingwei Tong, Shibin Wang

Proceedings Volume 4537, Third International Conference on Experimental Mechanics; (2002) https://doi.org/10.1117/12.468870
Event: Third International Conference on Experimental Mechanics, 2002, Beijing, China

Abstract

In this paper, a new digital-image correlation method-twelve variables gradient method is presented. The influence of second derivative terms of displacement is considered, the directional derivatives of correlation coefficient are obtained and variational step-length search is used in this method. Consequently, the truncation error caused by increasing of subset size and vast computation time are avoided. The measurement precision of displacement and strain are less than 0.011 pixels and 100 (mu) (epsilon) , respectively. Two test experiments and the application show that this is an efficient and accurate method.

Citation Download Citation

Dongmei Xing, Hong-Qi Li, Zhi Wang, Jingwei Tong, and Shibin Wang "New digital-image correlation method and its application", Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); https://doi.org/10.1117/12.468870

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