High temperature deformation measurement based on ultraviolet DIC

Hao Zhang; Yonghong Wang; Li Chen; Jianfei Sun; Lianxiang Yang

doi:10.1117/12.2084775

4 March 2015 High temperature deformation measurement based on ultraviolet DIC

Hao Zhang, Yonghong Wang, Li Chen, Jianfei Sun, Lianxiang Yang

Proceedings Volume 9302, International Conference on Experimental Mechanics 2014; 93020A (2015) https://doi.org/10.1117/12.2084775
Event: International Conference on Experimental Mechanics 2014, 2014, Singapore, Singapore

Abstract

High temperature deformation and strain are important measures for characterizing behaviors of structural components under high temperature conditions. Digital Image Correlation (DIC) is a full-field technique based on white-light illumination for displacement and strain measurement. But Light spectrum on the sample surface at high temperature affect the quality of acquired speckle pattern images for traditional DIC measurement. This paper proposes an innovative UV-DIC system which in conjunction with ultraviolet illumination and a filtering system to minimize the surface radiation effect and enable deformation and strain measurements at high temperatures. The test sample with a specially-selected coating material was heated by means of high temperature furnace, which process to form stable speckle pattern on the sample surface. The surface was illuminate by UV light and simultaneously an UV sensitive CCD camera was used to record digital speckle image of test sample surface under different temperatures. Using DIC method for image analysis and processing obtains full-field thermal deformation, which implements a set of image average algorithms for eliminates interference of vibration and noise. The experimental results show that the UV-DIC can achieve high temperature measurement, and effectively remove the interference of vibration and noise in high temperature measurement.

Citation Download Citation

Hao Zhang, Yonghong Wang, Li Chen, Jianfei Sun, and Lianxiang Yang "High temperature deformation measurement based on ultraviolet DIC", Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93020A (4 March 2015); https://doi.org/10.1117/12.2084775

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