International Conference on Materials, Processing and Product Engineering: Estimation of Material Parameters in Nonlinear Hardening Plasticity Models and Strain Life Curves for CuAg Alloy
Research output: Contribution to conference › Abstract › peer-review
Authors
Organisational units
External Organisational units
- Danieli & C. Officine Meccaniche SpA
- University of Udine
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.
Details
Original language | English |
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Pages | 68 |
Number of pages | 68 |
Publication status | Published - 3 Nov 2015 |
Event | MPPE 2015 - Montanuniversität Leoben, Leoben, Austria Duration: 3 Nov 2015 → 5 Nov 2015 |
Conference
Conference | MPPE 2015 |
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Country/Territory | Austria |
City | Leoben |
Period | 3/11/15 → 5/11/15 |