Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model
Ductility in metals includes the material’s capability to tolerate plastic deformations before partial or total degradation of its mechanical properties. Modelling this parameter is important in structure and component design because it can be used to estimate material failure under a generic multi-...
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Gruppo Italiano Frattura
2016-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_31.pdf |
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| author | R. Fincato S. Tsutsumi |
| author_facet | R. Fincato S. Tsutsumi |
| author_sort | R. Fincato |
| collection | DOAJ |
| description | Ductility in metals includes the material’s capability to tolerate plastic deformations before partial or total degradation of its mechanical properties. Modelling this parameter is important in structure and component design because it can be used to estimate material failure under a generic multi-axial stress state. Previous work has attempted to provide accurate descriptions of the mechanical property degradation resulting from the formation, growth, and coalescence of microvoids in the medium. Experimentally, ductile damage is inherently linked with the accumulation of plastic strain; therefore, coupling damage and elastoplasticity is necessary for describing this phenomenon accurately. In this paper, we combine the approach proposed by Lemaitre with the features of an unconventional plasticity model, the extended subloading surface model, to predict material fatigue even for loading conditions below the yield stress |
| format | Article |
| id | doaj-art-2c52f6170d4c483da2f6f510a9bab517 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2016-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-2c52f6170d4c483da2f6f510a9bab5172025-01-03T00:46:00ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-10-01103823123610.3221/IGF-ESIS.38.31Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity modelR. Fincato0S. Tsutsumi 1University of Osaka, JapanUniversity of Osaka, JapanDuctility in metals includes the material’s capability to tolerate plastic deformations before partial or total degradation of its mechanical properties. Modelling this parameter is important in structure and component design because it can be used to estimate material failure under a generic multi-axial stress state. Previous work has attempted to provide accurate descriptions of the mechanical property degradation resulting from the formation, growth, and coalescence of microvoids in the medium. Experimentally, ductile damage is inherently linked with the accumulation of plastic strain; therefore, coupling damage and elastoplasticity is necessary for describing this phenomenon accurately. In this paper, we combine the approach proposed by Lemaitre with the features of an unconventional plasticity model, the extended subloading surface model, to predict material fatigue even for loading conditions below the yield stresshttp://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_31.pdfUnconventional plasticityDuctile damageSubloading surfaceCyclic loading |
| spellingShingle | R. Fincato S. Tsutsumi Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model Fracture and Structural Integrity Unconventional plasticity Ductile damage Subloading surface Cyclic loading |
| title | Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model |
| title_full | Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model |
| title_fullStr | Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model |
| title_full_unstemmed | Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model |
| title_short | Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model |
| title_sort | numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model |
| topic | Unconventional plasticity Ductile damage Subloading surface Cyclic loading |
| url | http://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_31.pdf |
| work_keys_str_mv | AT rfincato numericalmodellingofductiledamagemechanicscoupledwithanunconventionalplasticitymodel AT stsutsumi numericalmodellingofductiledamagemechanicscoupledwithanunconventionalplasticitymodel |