Present address: Agency for Defense Development, Deajeon, Korea.
Thermal Stress Measurement of a Double Ring Structure Using Digital Image Correlation Method
Article first published online: 16 SEP 2013
© 2013, Society for Experimental Mechanics
How to Cite
Jin, T.L., Lee, S.H. and Goo, N.S. (2013), Thermal Stress Measurement of a Double Ring Structure Using Digital Image Correlation Method. Experimental Techniques. doi: 10.1111/ext.12053
- Article first published online: 16 SEP 2013
- Manuscript Accepted: 19 AUG 2013
- Manuscript Revised: 10 JUN 2013
- Manuscript Received: 20 APR 2012
- Digital Image Correlation Method;
- Thermal Stresses;
- Thermal Analysis;
- Finite Element Method
Structures under a wide range of temperatures have been challenged by thermal problems. In order to assess the safety of structures in a thermal environment, thermal deformation and stress of structures should be determined by analysis and/or experimental method. This article presents a measurement method of the thermal deformation and stress of a double ring structure, which uses the digital image correlation method (DIC). The stress distribution of the double ring was obtained using a two-dimensional stress–strain relation. Efforts to remove measurement noise in the calculation of strain and stress are explained in detail. In order to verify the proposed measurement method, a finite element analysis of the double ring structure was performed using ABAQUS software. The results of DIC-based measurement and finite element analysis were found to be in good agreement.