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Austenitic stainless steel cyclic plasticity
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  High-temperature inelastic behaviorof the austenitic steel AISI type 316 Yevgen Gorash  & Holm Altenbach National Technical University “Kharkiv Polytechnical Institute”, Ukraine&Otto-von-Guericke University Magdeburg, Germany Advanced Materials Modelling for Structures (AMMS 2012)April 23-27, 2012,Paris, France FAKULTÄT FÜRMASCHINENBAU MB OTTO VON GUERICKE UNIVERSITÄTMAGDEBURG National Technical University «Kharkiv Polytechnical Institute»Dep. of Dynamics and Strength of MachinesUkraine 61002 Kharkiv  International Union of TheoreticalandApplied Mechanics IUAM Y. Gorash & H. Altenbach (NTU “KhPI” & OvGU) AMMS-2012, April 23-27, 2012 1 / 44  Outline 1  IntroductionSchematic representations of hardening behaviorChaboche unified viscoplasticity modelStandard uniaxial tests at elevated temperatures 2  Mechanical properties and creep behavior for steel AISI type 316Mechanical properties of steel AISI type 316Description of creep behavior for steel AISI type 316 3  Phenomenological and rheological aspects of the proposed modelBasic assumptions for modeling of inelasticityExperimental creep data of the steel AISI type 316 at 600 ◦ CProposed viscoplasticity model and its schematic representation 4  Verification of the proposed model with uniaxial experiments 5  Conclusions and Outlook Y. Gorash & H. Altenbach (NTU “KhPI” & OvGU) AMMS-2012, April 23-27, 2012 2 / 44  Outline 1  IntroductionSchematic representations of hardening behaviorChaboche unified viscoplasticity modelStandard uniaxial tests at elevated temperatures 2  Mechanical properties and creep behavior for steel AISI type 316Mechanical properties of steel AISI type 316Description of creep behavior for steel AISI type 316 3  Phenomenological and rheological aspects of the proposed modelBasic assumptions for modeling of inelasticityExperimental creep data of the steel AISI type 316 at 600 ◦ CProposed viscoplasticity model and its schematic representation 4  Verification of the proposed model with uniaxial experiments 5  Conclusions and Outlook Y. Gorash & H. Altenbach (NTU “KhPI” & OvGU) AMMS-2012, April 23-27, 2012 2 / 44  Outline 1  IntroductionSchematic representations of hardening behaviorChaboche unified viscoplasticity modelStandard uniaxial tests at elevated temperatures 2  Mechanical properties and creep behavior for steel AISI type 316Mechanical properties of steel AISI type 316Description of creep behavior for steel AISI type 316 3  Phenomenological and rheological aspects of the proposed modelBasic assumptions for modeling of inelasticityExperimental creep data of the steel AISI type 316 at 600 ◦ CProposed viscoplasticity model and its schematic representation 4  Verification of the proposed model with uniaxial experiments 5  Conclusions and Outlook Y. Gorash & H. Altenbach (NTU “KhPI” & OvGU) AMMS-2012, April 23-27, 2012 2 / 44
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