The Bauschinger effect (BE) was originally defined as the phenomenon whereby plastic deformation causes a loss of yield strength restraining in the opposite direction. The Bauschinger effect factor (BEF), defined as the ratio of the yield stress on reverse loading to the initial yield stress, is a measure of the magnitude of the BE. The aim of the present work is to quantitatively evaluate the influence of plastic deformation on other material properties such as Young’s modulus and Poisson’s ratio for gun barrel steel, thus extending the definition of the Bauschinger effect. In order to investigate the change in this material’s properties resulting from plastic deformation, several uniaxial tension and compression tests were performed. The yield stress and Young’s modulus were found to be strongly affected by plastic strain, while Poisson’s ratio was not affected at all. An additional result of these tests is an exact zero offset yield point definition enabling a simple evaluation of the BEF. A simple, triphase test sufficient to characterize the entire elastoplastic behavior is suggested. The obtained experimental information is readily useful for autofrettage residual stress field calculations.
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The Influence of the Bauschinger Effect on the Yield Stress, Young’s Modulus, and Poisson’s Ratio of a Gun Barrel Steel
J. Perry,
J. Perry
Department of Mechanical Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
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M. Perl,
M. Perl
Department of Mechanical Engineering,
National University of Singapore
, 9 Engineering Drive 1, Singapore 117576
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R. Shneck,
R. Shneck
Department of Materials Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
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S. Haroush
S. Haroush
Nuclear Research Center - Negev
, P.O. Box 9001, Beer-Sheva, Israel
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J. Perry
Department of Mechanical Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
M. Perl
Department of Mechanical Engineering,
National University of Singapore
, 9 Engineering Drive 1, Singapore 117576
R. Shneck
Department of Materials Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
S. Haroush
Nuclear Research Center - Negev
, P.O. Box 9001, Beer-Sheva, IsraelJ. Pressure Vessel Technol. May 2006, 128(2): 179-184 (6 pages)
Published Online: December 12, 2005
Article history
Received:
December 1, 2005
Revised:
December 12, 2005
Citation
Perry, J., Perl, M., Shneck, R., and Haroush, S. (December 12, 2005). "The Influence of the Bauschinger Effect on the Yield Stress, Young’s Modulus, and Poisson’s Ratio of a Gun Barrel Steel." ASME. J. Pressure Vessel Technol. May 2006; 128(2): 179–184. https://doi.org/10.1115/1.2172962
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