Modeling the Strain-Range Dependent Cyclic Hardening of SS304 and 08Ch18N10T Stainless Steel with a Memory Surface
Abstract
:1. Introduction
2. New Constitutive Model
2.1. Yield Surface and Flow Rule
2.2. Virtual Back-Stress
2.3. Memory Surface
2.4. Kinematic Hardening Rule
2.5. Isotropic Hardening Rule
3. Identification of Material Parameters and Model Verification on SS304 Data
3.1. Uniaxial Large Hysteresis Loop
3.2. Static Strain Curve
3.3. Cyclic Stress–Strain Curve
3.4. Cyclic Hardening Curves
3.5. Prediction Results for SS304
4. Application to Uniaxial Cyclic Tests of 08Ch18N10T Stainless Steel
4.1. Identification of the Material Parameters for 08Ch18N10T Stainless Steel
4.2. Uniaxial Prediction for 08Ch18N10T Stainless Steel
5. Discussion
6. Conclusions
Author Contributions
Funding
Conflicts of Interest
Abbreviations
IDF | identification specimen series |
NPP | nuclear power plant |
SHL | selected hysteresis loop |
SHLs | selected hysteresis loops |
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[MPa] | |||||
196,000 | 0.3 | 150 | 150,000 | 622 | 19,827 |
128 | 2000 | 10 | 0 | ||
0.032 | −3.6 | 0.000915 | −0.5 | 60.7 | 305 |
0 | 6.424 | 344 | 4.5 |
[MPa] | |||||
210,000 | 0.3 | 150 | 63,400 | 148.6 | 10,000 |
911.4 | 2000 | 0 | |||
3.801 | 225.4 | ||||
0 | −4.197 | 130.5 | 2.318 |
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Halama, R.; Fumfera, J.; Gál, P.; Kumar, T.; Markopoulos, A. Modeling the Strain-Range Dependent Cyclic Hardening of SS304 and 08Ch18N10T Stainless Steel with a Memory Surface. Metals 2019, 9, 832. https://doi.org/10.3390/met9080832
Halama R, Fumfera J, Gál P, Kumar T, Markopoulos A. Modeling the Strain-Range Dependent Cyclic Hardening of SS304 and 08Ch18N10T Stainless Steel with a Memory Surface. Metals. 2019; 9(8):832. https://doi.org/10.3390/met9080832
Chicago/Turabian StyleHalama, Radim, Jaromír Fumfera, Petr Gál, Tadbhagya Kumar, and Alexandros Markopoulos. 2019. "Modeling the Strain-Range Dependent Cyclic Hardening of SS304 and 08Ch18N10T Stainless Steel with a Memory Surface" Metals 9, no. 8: 832. https://doi.org/10.3390/met9080832