International Conference on Materials, Processing and Product Engineering: Estimation of Material Parameters in Nonlinear Hardening Plasticity Models and Strain Life Curves for CuAg Alloy

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International Conference on Materials, Processing and Product Engineering: Estimation of Material Parameters in Nonlinear Hardening Plasticity Models and Strain Life Curves for CuAg Alloy. / Stanojevic, Aleksandar; Srnec Novak, Jelena; Benasciutti, Denis et al.
2015. 68 Abstract from MPPE 2015, Leoben, Austria.

Research output: Contribution to conferenceAbstractpeer-review

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Stanojevic, A, Srnec Novak, J, Benasciutti, D, De Bona, F, De Luca, A & Raffaglio, Y 2015, 'International Conference on Materials, Processing and Product Engineering: Estimation of Material Parameters in Nonlinear Hardening Plasticity Models and Strain Life Curves for CuAg Alloy', MPPE 2015, Leoben, Austria, 3/11/15 - 5/11/15 pp. 68.

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@conference{1d99ba0e2e7545069b524aa761333755,
title = "International Conference on Materials, Processing and Product Engineering: Estimation of Material Parameters in Nonlinear Hardening Plasticity Models and Strain Life Curves for CuAg Alloy",
abstract = "This work investigates the cyclic response and low-cycle fatigue behaviour of a CuAg alloy used in crystallizer for continuous casting lines. Therefore isothermal strain-based fatigue tests are first performed on CuAg specimens at different temperature levels (20 oC, 250 °C, 300 °C). The evolution of stress-strain loops recorded during the cyclic tests is used for the parameter identification of several nonlinear hardening models (nonlinear kinematic, nonlinear isotropic). Cyclic stress-strain data from experiments are compared with results from numerical simulations with the identified material parameters, showing a satisfying agreement. Critical examination of numerical results from different models is also performed. Finally, the strain-life fatigue curves estimated from experimental data are compared with approximate strain-life equations (Universal Slopes Equation, 10% Rule) which are obtained from simple tensile tests. The material parameters determined in this work can conveniently be used as inputs in a elasto-plastic finite element simulations of a crystallizer.",
keywords = "Constitutive Modelling, Parameter optimization, Testing methods",
author = "Aleksandar Stanojevic and {Srnec Novak}, Jelena and Denis Benasciutti and {De Bona}, Francesco and {De Luca}, Andrea and Yuri Raffaglio",
year = "2015",
month = nov,
day = "3",
language = "English",
pages = "68",
note = "MPPE 2015 ; Conference date: 03-11-2015 Through 05-11-2015",

}

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TY - CONF

T1 - International Conference on Materials, Processing and Product Engineering

T2 - MPPE 2015

AU - Stanojevic, Aleksandar

AU - Srnec Novak, Jelena

AU - Benasciutti, Denis

AU - De Bona, Francesco

AU - De Luca, Andrea

AU - Raffaglio, Yuri

PY - 2015/11/3

Y1 - 2015/11/3

N2 - This work investigates the cyclic response and low-cycle fatigue behaviour of a CuAg alloy used in crystallizer for continuous casting lines. Therefore isothermal strain-based fatigue tests are first performed on CuAg specimens at different temperature levels (20 oC, 250 °C, 300 °C). The evolution of stress-strain loops recorded during the cyclic tests is used for the parameter identification of several nonlinear hardening models (nonlinear kinematic, nonlinear isotropic). Cyclic stress-strain data from experiments are compared with results from numerical simulations with the identified material parameters, showing a satisfying agreement. Critical examination of numerical results from different models is also performed. Finally, the strain-life fatigue curves estimated from experimental data are compared with approximate strain-life equations (Universal Slopes Equation, 10% Rule) which are obtained from simple tensile tests. The material parameters determined in this work can conveniently be used as inputs in a elasto-plastic finite element simulations of a crystallizer.

AB - This work investigates the cyclic response and low-cycle fatigue behaviour of a CuAg alloy used in crystallizer for continuous casting lines. Therefore isothermal strain-based fatigue tests are first performed on CuAg specimens at different temperature levels (20 oC, 250 °C, 300 °C). The evolution of stress-strain loops recorded during the cyclic tests is used for the parameter identification of several nonlinear hardening models (nonlinear kinematic, nonlinear isotropic). Cyclic stress-strain data from experiments are compared with results from numerical simulations with the identified material parameters, showing a satisfying agreement. Critical examination of numerical results from different models is also performed. Finally, the strain-life fatigue curves estimated from experimental data are compared with approximate strain-life equations (Universal Slopes Equation, 10% Rule) which are obtained from simple tensile tests. The material parameters determined in this work can conveniently be used as inputs in a elasto-plastic finite element simulations of a crystallizer.

KW - Constitutive Modelling

KW - Parameter optimization

KW - Testing methods

M3 - Abstract

SP - 68

Y2 - 3 November 2015 through 5 November 2015

ER -