Stress-state dependent cohesive model for fatigue crack growth
In the cohesive framework, a stress-state dependent cohesive model, combined with an irreversible damage parameter has been used in simulation of fatigue crack growth initiation and continued growth. The model is implemented as interface elements and plane strain simulations of crack initiation and...
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| Format: | Article |
| Language: | English |
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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_3.pdf |
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| author | R. Shravan Kumar I.S. Nijin M. Vivek Bharadwaj G. Rajkumar Anuradha Banerjee |
| author_facet | R. Shravan Kumar I.S. Nijin M. Vivek Bharadwaj G. Rajkumar Anuradha Banerjee |
| author_sort | R. Shravan Kumar |
| collection | DOAJ |
| description | In the cohesive framework, a stress-state dependent cohesive model, combined with an irreversible damage parameter has been used in simulation of fatigue crack growth initiation and continued growth. The model is implemented as interface elements and plane strain simulations of crack initiation and growth under cyclic loading are performed. The stressstate of neighboring continuum elements is used in the traction-separation behavior of the cohesive elements. The model is shown to be able to reproduce the typical initiation life as well as fatigue crack growth curves. Further, the effect of the cohesive fatigue parameter on the initiation life and crack growth rates is established |
| format | Article |
| id | doaj-art-5ffdc4929a164c369d0fb08b71e7d465 |
| institution | DOAJ |
| 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-5ffdc4929a164c369d0fb08b71e7d4652025-08-20T02:51:41ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-10-011038192510.3221/IGF-ESIS.38.03Stress-state dependent cohesive model for fatigue crack growthR. Shravan Kumar0 I.S. Nijin1 M. Vivek Bharadwaj2 G. Rajkumar3 Anuradha Banerjee 4Indian Institute of Technology Madras,IndiaIndian Institute of Technology Madras,IndiaIndian Institute of Technology Madras,IndiaIndian Institute of Technology Madras,IndiaIndian Institute of Technology Madras,IndiaIn the cohesive framework, a stress-state dependent cohesive model, combined with an irreversible damage parameter has been used in simulation of fatigue crack growth initiation and continued growth. The model is implemented as interface elements and plane strain simulations of crack initiation and growth under cyclic loading are performed. The stressstate of neighboring continuum elements is used in the traction-separation behavior of the cohesive elements. The model is shown to be able to reproduce the typical initiation life as well as fatigue crack growth curves. Further, the effect of the cohesive fatigue parameter on the initiation life and crack growth rates is establishedhttp://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_3.pdfCohesive zone modelFatigueTriaxialityStress state |
| spellingShingle | R. Shravan Kumar I.S. Nijin M. Vivek Bharadwaj G. Rajkumar Anuradha Banerjee Stress-state dependent cohesive model for fatigue crack growth Fracture and Structural Integrity Cohesive zone model Fatigue Triaxiality Stress state |
| title | Stress-state dependent cohesive model for fatigue crack growth |
| title_full | Stress-state dependent cohesive model for fatigue crack growth |
| title_fullStr | Stress-state dependent cohesive model for fatigue crack growth |
| title_full_unstemmed | Stress-state dependent cohesive model for fatigue crack growth |
| title_short | Stress-state dependent cohesive model for fatigue crack growth |
| title_sort | stress state dependent cohesive model for fatigue crack growth |
| topic | Cohesive zone model Fatigue Triaxiality Stress state |
| url | http://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_3.pdf |
| work_keys_str_mv | AT rshravankumar stressstatedependentcohesivemodelforfatiguecrackgrowth AT isnijin stressstatedependentcohesivemodelforfatiguecrackgrowth AT mvivekbharadwaj stressstatedependentcohesivemodelforfatiguecrackgrowth AT grajkumar stressstatedependentcohesivemodelforfatiguecrackgrowth AT anuradhabanerjee stressstatedependentcohesivemodelforfatiguecrackgrowth |