A strain space nonlinear kinematic hardening/softening plasticity model |
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| Institution: | 1. Technology Research & Development Institute, KEPCO KPS, 211, Munhwa-ro, Naju-si, Jeollanam-do, 58217, Republic of Korea;2. Department of Mechanical System Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea;1. University of Antwerp, Laboratory of Biophysics and Biomedical Physics, Department of Physics, Groenenborgerlaan 171, 2020 Antwerp, Belgium;2. Vrije Universiteit Brussel, Department of Mechanical Engineering, Pleinlaan 2, 1050 Brussels, Belgium;3. Katholieke Universiteit Leuven, Laboratory of Acoustics, Soft Matter and Biophysics, Department of Physics and Astronomy, Celestijnenlaan 200D, 3001 Leuven, Belgium;1. University of Utah, Civil & Environmental Engineering, 110 S. Central Campus Drive, Suite 2000, Salt Lake City, UT 84112, United States;2. Simpson Gumpertz & Heger, 41 Seyon Street, Building 1, Suite 500, Waltham, MA 02453, United States |
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| Abstract: | A strain space plasticity theory based on the nonlinear kinematic hardening and softening rule is developed in order to accommodate work-hardening, work-softening, and elastic-perfectly plastic materials with one set of constitutive equations, and to facilitate strain controlled calculations. A generalized hardening/softening parameter is proposed, and the potential of linking the parameter to micro-mechanical material changes is discussed. The theory is used to investigate work-softening materials numerically and highlights a need for additional experimental results in this area. |
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