A coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identification
The development of a coupled damage-plasticity constitutive model for concrete is presented. Emphasis is put on thermodynamic admissibility, rigour and consistency both in the formulation of the model, and in the identification of model parameters based on experimental tests. The key feature of the...
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| Format: | Journal article |
| Language: | English |
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2008
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| _version_ | 1797094869182709760 |
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| author | Nguyen, G Houlsby, G |
| author_facet | Nguyen, G Houlsby, G |
| author_sort | Nguyen, G |
| collection | OXFORD |
| description | The development of a coupled damage-plasticity constitutive model for concrete is presented. Emphasis is put on thermodynamic admissibility, rigour and consistency both in the formulation of the model, and in the identification of model parameters based on experimental tests. The key feature of the thermodynamic framework used in this study is that all behaviour of the model can be derived from two specified energy potentials, following procedures established beforehand. Based on this framework, a constitutive model featuring full coupling between damage and plasticity in both tension and compression is developed. Tensile and compressive responses of the material are captured using two separate damage criteria, and a yield criterion with a multiple hardening rule. A crucial part of this study is the identification of model parameters, with these all being shown to be identifiable and computable based on standard tests on concrete. Behaviour of the model is assessed against experimental data on concrete. Copyright © 2007 John Wiley and Sons, Ltd. |
| first_indexed | 2024-03-07T04:19:55Z |
| format | Journal article |
| id | oxford-uuid:caadbdf6-d8a8-408f-8fda-2411e6d8e773 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:19:55Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:caadbdf6-d8a8-408f-8fda-2411e6d8e7732022-03-27T07:09:06ZA coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identificationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:caadbdf6-d8a8-408f-8fda-2411e6d8e773EnglishSymplectic Elements at Oxford2008Nguyen, GHoulsby, GThe development of a coupled damage-plasticity constitutive model for concrete is presented. Emphasis is put on thermodynamic admissibility, rigour and consistency both in the formulation of the model, and in the identification of model parameters based on experimental tests. The key feature of the thermodynamic framework used in this study is that all behaviour of the model can be derived from two specified energy potentials, following procedures established beforehand. Based on this framework, a constitutive model featuring full coupling between damage and plasticity in both tension and compression is developed. Tensile and compressive responses of the material are captured using two separate damage criteria, and a yield criterion with a multiple hardening rule. A crucial part of this study is the identification of model parameters, with these all being shown to be identifiable and computable based on standard tests on concrete. Behaviour of the model is assessed against experimental data on concrete. Copyright © 2007 John Wiley and Sons, Ltd. |
| spellingShingle | Nguyen, G Houlsby, G A coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identification |
| title | A coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identification |
| title_full | A coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identification |
| title_fullStr | A coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identification |
| title_full_unstemmed | A coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identification |
| title_short | A coupled damage-plasticity model for concrete based on thermodynamic principles: Part I: model formulation and parameter identification |
| title_sort | coupled damage plasticity model for concrete based on thermodynamic principles part i model formulation and parameter identification |
| work_keys_str_mv | AT nguyeng acoupleddamageplasticitymodelforconcretebasedonthermodynamicprinciplespartimodelformulationandparameteridentification AT houlsbyg acoupleddamageplasticitymodelforconcretebasedonthermodynamicprinciplespartimodelformulationandparameteridentification AT nguyeng coupleddamageplasticitymodelforconcretebasedonthermodynamicprinciplespartimodelformulationandparameteridentification AT houlsbyg coupleddamageplasticitymodelforconcretebasedonthermodynamicprinciplespartimodelformulationandparameteridentification |