The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments
Fields of stress, strain rate and process zone of a mode I creep crack growth are analyzed by employing damage evolution equations. Damage models for fracture of process zone represented by stress based formulation. Two expressions are presented to describe the stress-sensitive nature of multiaxial...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2017-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero41/numero_41_art_38.pdf |
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| author | V. Shlyannikov A. Tumanov |
| author_facet | V. Shlyannikov A. Tumanov |
| author_sort | V. Shlyannikov |
| collection | DOAJ |
| description | Fields of stress, strain rate and process zone of a mode I creep crack growth are analyzed by employing damage evolution equations. Damage models for fracture of process zone represented by stress based formulation. Two expressions are presented to describe the stress-sensitive nature of multiaxial rupture behavior. Both damage free and defective creeping solids have been studied. The variation of creep stress and the crack-tip governing parameter in the form of creep In-integral with time and the evolution of creep damage were analyzed by using the FE-model. The effect of the introduced creep stress intensity factor as a function of creep time through the continuum damage mechanics of the creep crack growth are discussed in detail. |
| format | Article |
| id | doaj-art-4aedc7dcb527462cbee3bcd5566121ca |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2017-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-4aedc7dcb527462cbee3bcd5566121ca2025-01-02T23:01:07ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932017-07-01114128529210.3221/IGF-ESIS.41.38 The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessmentsV. Shlyannikov 0A. Tumanov1 Russian Academy of Sciences, Russia Russian Academy of Sciences, Russia Fields of stress, strain rate and process zone of a mode I creep crack growth are analyzed by employing damage evolution equations. Damage models for fracture of process zone represented by stress based formulation. Two expressions are presented to describe the stress-sensitive nature of multiaxial rupture behavior. Both damage free and defective creeping solids have been studied. The variation of creep stress and the crack-tip governing parameter in the form of creep In-integral with time and the evolution of creep damage were analyzed by using the FE-model. The effect of the introduced creep stress intensity factor as a function of creep time through the continuum damage mechanics of the creep crack growth are discussed in detail.http://www.gruppofrattura.it/pdf/rivista/numero41/numero_41_art_38.pdf. Creep damageCreep SIFMulti-axial stress function |
| spellingShingle | V. Shlyannikov A. Tumanov The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments Fracture and Structural Integrity . Creep damage Creep SIF Multi-axial stress function |
| title | The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments |
| title_full | The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments |
| title_fullStr | The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments |
| title_full_unstemmed | The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments |
| title_short | The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments |
| title_sort | effect of creep damage formulation on crack tip fields creep stress intensity factor and crack growth assessments |
| topic | . Creep damage Creep SIF Multi-axial stress function |
| url | http://www.gruppofrattura.it/pdf/rivista/numero41/numero_41_art_38.pdf |
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