Influence of the Thickness of the Specimen in the Infrared Hybrid Method in Consideration of Heat Conduction

Abstract:

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The thickness dependency of the temperature image obtained by an infrared thermography was investigated using specimens with three kinds of materials and four kinds of the thickness of the specimen. Then, the infrared hybrid method was developed to separate individual stress components. However, it had the influence by heat conduction in the infrared stress measuring method. Therefore, an error will occur in the infrared hybrid analysis. Then, the system which corrected the error by the inverse analysis was developed. Thereby, the accuracy of the stress intensity factor was able to be raised. Furthermore, the accuracy of hybrid method considering to heat conduction was discussed in comparison with the 3-D finite-element analysis and 2-D hybrid method.

Info:

Periodical:

Key Engineering Materials (Volumes 321-323)

Edited by:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi

Pages:

841-844

DOI:

10.4028/www.scientific.net/KEM.321-323.841

Citation:

K. Machida and S. Miyagawa, "Influence of the Thickness of the Specimen in the Infrared Hybrid Method in Consideration of Heat Conduction", Key Engineering Materials, Vols. 321-323, pp. 841-844, 2006

Online since:

October 2006

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Price:

$35.00

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