It is well known in the literature that the isotropic hardening rule in plasticity is not realistic for handling plastic deformation in a simulation of a full sheet-metal forming process including springback. An anisotropic hardening rule proposed by Mroz is more realistic. For an accurate computation of the stress increment for a given strain increment by using Mroz’s rule, the conventional subinterval integration takes excessive computing time. This paper proposes the radial return method to compute such stress increment for saving computing time. Two numerical examples show the efficiency of the proposed method. Even for a sheet model with more than 10,000 thin shell elements, the radial return method takes only 40 percent of the overall computing time by the subinterval integration.
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October 2001
Technical Papers
Application of the Radial Return Method to Compute Stress Increments From Mroz’s Hardening Rule
Sing C. Tang,
Sing C. Tang
Scientific Research Laboratories, Ford Motor Company, Dearborn, MI 48121
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Z. Cedric Xia,
Z. Cedric Xia
Scientific Research Laboratories, Ford Motor Company, Dearborn, MI 48121
11
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Feng Ren
Feng Ren
Scientific Research Laboratories, Ford Motor Company, Dearborn, MI 48121
Search for other works by this author on:
Sing C. Tang
Scientific Research Laboratories, Ford Motor Company, Dearborn, MI 48121
Z. Cedric Xia
11
Scientific Research Laboratories, Ford Motor Company, Dearborn, MI 48121
Feng Ren
Scientific Research Laboratories, Ford Motor Company, Dearborn, MI 48121
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division July 24, 2000. Guests Editors: Jian Cao and Z. Cedric Xia.
J. Eng. Mater. Technol. Oct 2001, 123(4): 398-402 (5 pages)
Published Online: July 24, 2000
Article history
Received:
July 24, 2000
Citation
Tang , S. C., Xia, Z. C., and Ren, F. (July 24, 2000). "Application of the Radial Return Method to Compute Stress Increments From Mroz’s Hardening Rule ." ASME. J. Eng. Mater. Technol. October 2001; 123(4): 398–402. https://doi.org/10.1115/1.1395022
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