Uniaxial ratchetting experiments of 316FR steel at room temperature reported in Part I are simulated using a new kinematic hardening model which has two kinds of dynamic recovery terms. The model, which features the capability of simulating slight opening of stress-strain hysteresis loops robustly, is formulated by furnishing the Armstrong and Frederick model with the critical state of dynamic recovery introduced by Ohno and Wang (1993). The model is then combined with a viscoplastic equation, and the resulting constitutive model is applied successfully to simulating the experiments. It is shown that for ratchetting under stress cycling with negative stress ratio, viscoplasticity and slight opening of hysteresis loops are effective mainly in early and subsequent cycles, respectively, whereas for ratchetting under zero-to-tension only viscoplasticity is effective. [S0094-4289(00)00501-6]
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January 2000
Technical Papers
Uniaxial Ratchetting of 316FR Steel at Room Temperature— Part II: Constitutive Modeling and Simulation
N. Ohno,
e-mail: ohno@mech.nagoya-u.ac.jp
N. Ohno
Department of Mechanical Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
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M. Abdel-Karim
M. Abdel-Karim
Department of Mechanical Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
Search for other works by this author on:
N. Ohno
Department of Mechanical Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
e-mail: ohno@mech.nagoya-u.ac.jp
M. Abdel-Karim
Department of Mechanical Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division October 1, 1998. Associate Technical Editor: H. Sehitoglu.
J. Eng. Mater. Technol. Jan 2000, 122(1): 35-41 (7 pages)
Published Online: October 1, 1998
Article history
Received:
October 1, 1998
Citation
Ohno , N., and Abdel-Karim , M. (October 1, 1998). "Uniaxial Ratchetting of 316FR Steel at Room Temperature— Part II: Constitutive Modeling and Simulation ." ASME. J. Eng. Mater. Technol. January 2000; 122(1): 35–41. https://doi.org/10.1115/1.482762
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