Determination of material properties in the Chaboche unified viscoplasticity model
An experimental programme of cyclic mechanical testing of a 316 stainless steel, at temperatures up to 600°C, under isothermal conditions, for the identification of material constitutive constants, has been carried out using a thermo-mechanical fatigue (TMF) test machine with induction coil heating....
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Published: |
SAGE
2010
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/46512/ |
| _version_ | 1848797344628211712 |
|---|---|
| author | Gong, Y.P. Hyde, Christopher J. Sun, W. Hyde, T.H. |
| author_facet | Gong, Y.P. Hyde, Christopher J. Sun, W. Hyde, T.H. |
| author_sort | Gong, Y.P. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | An experimental programme of cyclic mechanical testing of a 316 stainless steel, at temperatures up to 600°C, under isothermal conditions, for the identification of material constitutive constants, has been carried out using a thermo-mechanical fatigue (TMF) test machine with induction coil heating. The constitutive model adopted is a modified Chaboche unified viscoplasticity model, which can deal with both cyclic effects, such as combined isotropic and kinematic hardening, and rate-dependent effects, associated with viscoplasticity. The characterization of 316 stainless steel is presented and compared with results from cyclic isothermal tests. A least-squares optimization algorithm has been developed and implemented for determining the material constants in order to further improve the general fit of the model to experimental data, using the initially obtained material constants as the starting point in this optimization process. The model predictions using both the initial and optimized material constants are compared to experimental data. |
| first_indexed | 2025-11-14T20:02:23Z |
| format | Article |
| id | nottingham-46512 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:02:23Z |
| publishDate | 2010 |
| publisher | SAGE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-465122020-05-04T16:28:46Z https://eprints.nottingham.ac.uk/46512/ Determination of material properties in the Chaboche unified viscoplasticity model Gong, Y.P. Hyde, Christopher J. Sun, W. Hyde, T.H. An experimental programme of cyclic mechanical testing of a 316 stainless steel, at temperatures up to 600°C, under isothermal conditions, for the identification of material constitutive constants, has been carried out using a thermo-mechanical fatigue (TMF) test machine with induction coil heating. The constitutive model adopted is a modified Chaboche unified viscoplasticity model, which can deal with both cyclic effects, such as combined isotropic and kinematic hardening, and rate-dependent effects, associated with viscoplasticity. The characterization of 316 stainless steel is presented and compared with results from cyclic isothermal tests. A least-squares optimization algorithm has been developed and implemented for determining the material constants in order to further improve the general fit of the model to experimental data, using the initially obtained material constants as the starting point in this optimization process. The model predictions using both the initial and optimized material constants are compared to experimental data. SAGE 2010-01-01 Article PeerReviewed Gong, Y.P., Hyde, Christopher J., Sun, W. and Hyde, T.H. (2010) Determination of material properties in the Chaboche unified viscoplasticity model. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 224 (1). pp. 19-29. ISSN 2041-3076 Unified viscoplasticity model 316 stainless steel Material property determination Non-linear least-squares optimization https://doi.org/10.1243/14644207JMDA273 doi:10.1243/14644207JMDA273 doi:10.1243/14644207JMDA273 |
| spellingShingle | Unified viscoplasticity model 316 stainless steel Material property determination Non-linear least-squares optimization Gong, Y.P. Hyde, Christopher J. Sun, W. Hyde, T.H. Determination of material properties in the Chaboche unified viscoplasticity model |
| title | Determination of material properties in the Chaboche unified viscoplasticity model |
| title_full | Determination of material properties in the Chaboche unified viscoplasticity model |
| title_fullStr | Determination of material properties in the Chaboche unified viscoplasticity model |
| title_full_unstemmed | Determination of material properties in the Chaboche unified viscoplasticity model |
| title_short | Determination of material properties in the Chaboche unified viscoplasticity model |
| title_sort | determination of material properties in the chaboche unified viscoplasticity model |
| topic | Unified viscoplasticity model 316 stainless steel Material property determination Non-linear least-squares optimization |
| url | https://eprints.nottingham.ac.uk/46512/ https://eprints.nottingham.ac.uk/46512/ https://eprints.nottingham.ac.uk/46512/ |