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parameter, validation of evolution expressions of the proposed yield criterion with those based on Tresca, Mises and TSS criteria as well as available classical yield experimental results of various...Equal perimeter yield criterion and its specific plastic work rate:Development, validation and applicationZHANG Shun-hu(章顺虎)1, ZHAO De-wen(赵德文)2, CHEN Xiao-dong(陈晓东)3(1. Shagang School of Iron......
compared with the yield loci calculated from several existing yield criteria. The analytical result shows that the Barlat89 and Hosford yield criterion describe the general trends of the experimental yield... the applicability of different yield criteria, GREEN et al designed a procedure to determine the anisotropic parameters of various yield functions and obtain best fits to these functions. In this paper, in order......
/Explicit by considering von Mises and Hill-1948 yield criteria. Simulation results including punch force and strain distribution were compared and validated with the experimental results. The results reveal that using anisotropic yield criteria for simulation has a better match in both cases with the experiments. Key words: AA1200 aluminum alloy; sheet forming; stretch forming; numerical simulation......
in their own spaces. However, both criteria are found to yield two values of σ1 for single σ3 in the low tension zone in the σ1-σ3 space, which is physically implausible (Figs.2-4). Similar problem was reported...J. Cent. South Univ. Technol. (2011) 18: 925-931 DOI: 10.1007/s11771-011-0782-7 Statistical evaluation of five failure criteria for intact salt rock MA Lin-jian(马林建), LIU Xin-yu(刘新宇), FANG Qin(方秦......
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was studied. Three yield criteria, including von Mises yield criterion, Mohr-Coulomb yield criterion and the unified yield criterion were used to describe the yield phenomena of the metallic glasses. Two... of the metallic glasses no matter whether the metallic glasses show strength- different effect or non-strength-different effect. Almost all the widely accepted yield criteria are the subsets of the unified......
on the brittleness of rock materials. A plastic flow factor of λ is proposed to describe the stress-drop effect. Evaluation methods of the factor λ corresponding to the four yield criteria of rock mass are proposed. Those four yield criteria are Tresca criterion, von-Mises criterion, Mohr-Coulomb criterion and Drucker-Prager criterion. For simplicity purposes, an engineering approximation approach......
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by conducting a Nakazima test with specimens of different widths. Additionally, for theoretical FLD prediction, various anisotropic yield criteria (Barlat 1989, Barlat 1996, Hill 1993) and different... Marciniak and Kuczynski (M-K) theory incorporating the developed yield criteria and constitutive models. It has been observed that the effect of yield model is more pronounced than the effect......