Two accuracy improvements on nonuniform transformation field analysis for plasticity coupled to softening |
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| Authors: | Xiaozhe Ju Rolf Mahnken |
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| Institution: | Chair of Engineering Mechanics (LTM), University of Paderborn, Warburger Str. 100, 33098 Paderborn |
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| Abstract: | A reduced order homogenization scheme for the case of plasticity coupled with softening effects is proposed. This is based on a straightforward extension of the so-called nonuniform transformation field analysis (NTFA, 2]). Two related new methods, denoted as uneven NTFA and adaptive NTFA accounting for accuracy improvements, are also presented, which are based on the ideas of parameter identification and adaptive modeling, respectively. A complementary numerical study is given. (© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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