Stress Distribution in Be Compact Tension Specimen

Abstract:

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Beryllium (Be) is susceptible to introduce stress because it is a brittle metal with a high elastic modular. The compact tension (CT) specimens of beryllium were designed to determinate stress and fracture behaviors. Stress distribution near notch in CT beryllium was measured by the combination of an X-ray stress analysis and a custom-designed load device. The results show that local stresses near notch tip are much higher than those on other area. Thus, stress concentration lead the CT specimens fracture along the notch direction. Residual stresses due to machining are remained. A finite element ( FE ) calculation on the same loaded geometry was made, and the result is agreement with the measured stress distribution near notch.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

2033-2036

DOI:

10.4028/www.scientific.net/MSF.561-565.2033

Citation:

R. W. Li and P. Dong, "Stress Distribution in Be Compact Tension Specimen", Materials Science Forum, Vols. 561-565, pp. 2033-2036, 2007

Online since:

October 2007

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$35.00

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