Uniaxial, torsion, and axial-torsion fatigue experiments were conducted on a pressure vessel steel, 16MnR, in ambient air. The uniaxial experiments were conducted using solid cylindrical specimens. Axial-torsion experiments employed thin-walled tubular specimens subjected to proportional and nonproportional loading. The true fracture stress and strain were obtained by testing solid shafts under monotonic torsion. Experimental results reveal that the material under investigation does not display significant nonproportional hardening. The material was found to display shear cracking under pure shear loading but tensile cracking under tension-compression loading. Two critical plane multiaxial fatigue criteria, namely, the Fatemi–Socie criterion and the Jiang criterion, were evaluated based on the experimental results. The Fatemi–Socie criterion combines the maximum shear strain amplitude with a consideration of the normal stress on the critical plane. The Jiang criterion makes use of the plastic strain energy on a material plane as the major contributor to the fatigue damage. Both criteria were found to correlate well with the experiments in terms of fatigue life. The predicted cracking directions by the criteria were less satisfactory when comparing with the experimentally observed cracking behavior under different loading conditions.
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April 2009
Research Papers
Multiaxial Fatigue of 16MnR Steel
Zengliang Gao,
Zengliang Gao
College of Mechanical Engineering,
Zhejiang University of Technology
, Hangzhou 310014, China
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Tianwen Zhao,
Tianwen Zhao
Department of Mechanical Engineering (312),
University of Nevada, Reno
, Reno, NV 89557
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Xiaogui Wang,
Xiaogui Wang
College of Mechanical Engineering,
Zhejiang University of Technology
, Hangzhou 310014, China
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Yanyao Jiang
Yanyao Jiang
Department of Mechanical Engineering (312),
e-mail: yjiang@unr.edu
University of Nevada, Reno
, Reno, NV 89557
Search for other works by this author on:
Zengliang Gao
College of Mechanical Engineering,
Zhejiang University of Technology
, Hangzhou 310014, China
Tianwen Zhao
Department of Mechanical Engineering (312),
University of Nevada, Reno
, Reno, NV 89557
Xiaogui Wang
College of Mechanical Engineering,
Zhejiang University of Technology
, Hangzhou 310014, China
Yanyao Jiang
Department of Mechanical Engineering (312),
University of Nevada, Reno
, Reno, NV 89557e-mail: yjiang@unr.edu
J. Pressure Vessel Technol. Apr 2009, 131(2): 021403 (9 pages)
Published Online: December 11, 2008
Article history
Received:
February 27, 2007
Revised:
July 18, 2007
Published:
December 11, 2008
Citation
Gao, Z., Zhao, T., Wang, X., and Jiang, Y. (December 11, 2008). "Multiaxial Fatigue of 16MnR Steel." ASME. J. Pressure Vessel Technol. April 2009; 131(2): 021403. https://doi.org/10.1115/1.3008041
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