In Situ Stress Measurement Method Based on X-Ray Diffraction under Biaxial Tensile Loading

Article Preview

Abstract:

The purpose of this investigation is to detect damage from stress distribution in the surface of near pre-crack tip by using X-ray diffraction technique during biaxial tension test. An measurements apparatus to measure stress distribution along pre-crack direction was fabrication by use of a biaxial tensile test device and a stress analyzer based on single exposure technique with one position sensitive proportional counter. Stress distribution with different tensile applied stress ratios were measured during biaxial tension test. As results, the shape of actual stress was keeping increase with increasing tensile applied stress. At maximum applied stress, the residual stress increases with the increasing distance from the crack tip; after reaching a maximum it gradually diminish.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 675-677)

Pages:

615-618

Citation:

Online since:

February 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] W.H. Schlosberg and J. B. Cohen: Metall. Tran. A Vol. 13 (1982), p.1987-(1995).

Google Scholar

[2] L. Kunz, Knesl and P. Lukas: Farigue of Engineering Materials and Strucrures Vol. 2 (1979), pp.279-285.

Google Scholar

[3] Shin-ichi Ohya, Toshitaka Nagahama, Reiko Kojima and Yoshihiko Hagiwara: J. Soc. Mat. Sci., Japan Vol. 48 (1999), pp.711-716.

Google Scholar

[4] H. H. Lester, R. H. Abom: Army Ordnance Vol. 6 (1925-1926), pp.120-364.

Google Scholar

[5] I. C. Noyan, J. B. Cohen, Residual stress, Measurement by diffraction and interpretation. Springer, New York, (1987).

Google Scholar

[6] J. B. Cohen, H. Dolle, M. R. James, Determining stress from X-ray powder patterns. NBS Special Publication, 567, pp.453-477 (1980).

Google Scholar

[7] H. Dolle: J. App. Cryst Vol. 12 (1979), pp.489-501.

Google Scholar

[8] Rice. JR. Mechanics of crack tip deformation and extension by fatigue. ASTM STP 415 ASTM; pp.247-311 (1967).

Google Scholar