Consistent tangent stiffness for local-nonlocal damage modelling of metals
In the present study we consider an adaptation of Nguyen's model [6] for brittle materials to the case of ductile rupture. We focus our attention on the formulation of a consistent tangent stiffness matrix which is essential for the efficiency and convergence of the implementation within a fini...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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Elsevier
2009
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| _version_ | 1797104701274062848 |
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| author | Belnoue, J Nguyen, G Korsunsky, A |
| author_facet | Belnoue, J Nguyen, G Korsunsky, A |
| author_sort | Belnoue, J |
| collection | OXFORD |
| description | In the present study we consider an adaptation of Nguyen's model [6] for brittle materials to the case of ductile rupture. We focus our attention on the formulation of a consistent tangent stiffness matrix which is essential for the efficiency and convergence of the implementation within a finite element framework. We demonstrate the capability of the model to generate mesh-independent results and to follow the rupture process very close to failure. Rupture analysis of thin plates of different geometry is presented (symmetric double notch-edged specimen, asymmetric double notch-edged specimen, double notch-edged specimen containing a hole). Further modifications are outlined required to simulate crack growth and paths under the conditions of creep and fatigue. |
| first_indexed | 2024-03-07T06:37:17Z |
| format | Journal article |
| id | oxford-uuid:f814e7d9-fadc-4298-b0bd-df29b328323b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:37:17Z |
| publishDate | 2009 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:f814e7d9-fadc-4298-b0bd-df29b328323b2022-03-27T12:47:44ZConsistent tangent stiffness for local-nonlocal damage modelling of metalsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f814e7d9-fadc-4298-b0bd-df29b328323bEngineering & allied sciencesCivil engineeringEnglishOxford University Research Archive - ValetElsevier2009Belnoue, JNguyen, GKorsunsky, AIn the present study we consider an adaptation of Nguyen's model [6] for brittle materials to the case of ductile rupture. We focus our attention on the formulation of a consistent tangent stiffness matrix which is essential for the efficiency and convergence of the implementation within a finite element framework. We demonstrate the capability of the model to generate mesh-independent results and to follow the rupture process very close to failure. Rupture analysis of thin plates of different geometry is presented (symmetric double notch-edged specimen, asymmetric double notch-edged specimen, double notch-edged specimen containing a hole). Further modifications are outlined required to simulate crack growth and paths under the conditions of creep and fatigue. |
| spellingShingle | Engineering & allied sciences Civil engineering Belnoue, J Nguyen, G Korsunsky, A Consistent tangent stiffness for local-nonlocal damage modelling of metals |
| title | Consistent tangent stiffness for local-nonlocal damage modelling of metals |
| title_full | Consistent tangent stiffness for local-nonlocal damage modelling of metals |
| title_fullStr | Consistent tangent stiffness for local-nonlocal damage modelling of metals |
| title_full_unstemmed | Consistent tangent stiffness for local-nonlocal damage modelling of metals |
| title_short | Consistent tangent stiffness for local-nonlocal damage modelling of metals |
| title_sort | consistent tangent stiffness for local nonlocal damage modelling of metals |
| topic | Engineering & allied sciences Civil engineering |
| work_keys_str_mv | AT belnouej consistenttangentstiffnessforlocalnonlocaldamagemodellingofmetals AT nguyeng consistenttangentstiffnessforlocalnonlocaldamagemodellingofmetals AT korsunskya consistenttangentstiffnessforlocalnonlocaldamagemodellingofmetals |