Experimental  study of leadscrew stresses in-service by digital image correlation

Terry Yuan-Fang Chen; Ssu-Yu Chen

doi:10.1117/12.2084895

4 March 2015 Experimental study of leadscrew stresses in-service by digital image correlation

Terry Yuan-Fang Chen, Ssu-Yu Chen

Proceedings Volume 9302, International Conference on Experimental Mechanics 2014; 93021B (2015) https://doi.org/10.1117/12.2084895
Event: International Conference on Experimental Mechanics 2014, 2014, Singapore, Singapore

Abstract

Leadscrew is used to translate turning motion into linear motion. The alternative stress is happening during the motion, and fatigue may happen when the leadscrew undergoes reciprocating motion.The purpose of this study is to measure the deformation of leadscrew in-service by digital image correlation method (DIC) for fatigue failure evaluation. The leadscrew was undergoing reciprocating motion, and the deformed leadscrew images were captured by a CCD camera. Full-field strain of the deformed leadscrew was obtained by using digital image correlation, and to further obtain the full-field stress. The deformation at several points were examined. The results show that at the points of concentrated stress, the maximun Von Mises stress is about four times bigger than that at the other points, and fatigue may be occured.

Citation Download Citation

Terry Yuan-Fang Chen and Ssu-Yu Chen "Experimental study of leadscrew stresses in-service by digital image correlation", Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93021B (4 March 2015); https://doi.org/10.1117/12.2084895

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