Three-Dimensional Stress Analysis by Three-dimensional Local Hybrid Method

Abstract:

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In the displacement measurement inside a specimen by speckle photography, it is not easy to get clear Young's fringes images. Stress-intensity factors of mixed mode can be estimated by embedded speckle photography. However, the error of the stress intensity factor inside a specimen was considerably large. To evaluate the 3-D stress field inside the specimen from displacement data on the free surface obtained from the 2-D intelligent hybrid method, we developed the 3-D local hybrid method based on an inverse problem analysis. The accuracy of the 3-D local hybrid method varies depending on the depth of the plane of error assessment, hybrid domain size, and specimen thickness. Hence the optimal analysis conditions were discussed.

Info:

Periodical:

Key Engineering Materials (Volumes 306-308)

Edited by:

Ichsan Setya Putra and Djoko Suharto

Pages:

523-528

DOI:

10.4028/www.scientific.net/KEM.306-308.523

Citation:

K. Machida "Three-Dimensional Stress Analysis by Three-dimensional Local Hybrid Method", Key Engineering Materials, Vols. 306-308, pp. 523-528, 2006

Online since:

March 2006

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Price:

$35.00

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