Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method
The novel destructive method is implemented for quantitative assessment of fatigue damage accumulation in the stress concentration zone accompanied by residual stress due to cold expansion of the through-thickness hole. Damage accumulation is reached by preliminary cyclic loading of plane specimens...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2021-12-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/3307 |
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| _version_ | 1841562221506723840 |
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| author | Sviatoslav Eleonsky Yuri Matvienko Vladimir Pisarev Michael Zajtsev |
| author_facet | Sviatoslav Eleonsky Yuri Matvienko Vladimir Pisarev Michael Zajtsev |
| author_sort | Sviatoslav Eleonsky |
| collection | DOAJ |
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The novel destructive method is implemented for quantitative assessment of fatigue damage accumulation in the stress concentration zone accompanied by residual stress due to cold expansion of the through-thickness hole. Damage accumulation is reached by preliminary cyclic loading of plane specimens with cold-expanded holes. Narrow notches, emanating from the hole edge at different stages of high-cycle fatigue, serve to manifest a damage level. These notches are inserted without applying external load. Deformation response to local material removing, caused by pure residual stress influence, is measured by electronic speckle pattern interferometry (ESPI) in terms of in-plane displacement components. Normalized values of the notch mouth open displacement (NMOD), in-plane displacement component at the initial point of the notch acting in the notch direction (U0), in-plane displacement component at the final point of the notch acting in the notch direction (U1) and the stress intensity factor (SIF) are used as current damage indicators. Numerical integration of curves, describing an evolution of each fracture mechanics parameter over lifetime, produces the damage accumulation function in an explicit form. It is established that all four fracture mechanics parameters give very close results.
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| format | Article |
| id | doaj-art-0f6a70c1edfc4ebaba7f28b12d7dea17 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-0f6a70c1edfc4ebaba7f28b12d7dea172025-01-03T01:03:15ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932021-12-011659Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance methodSviatoslav Eleonsky0Yuri Matvienko 1Vladimir Pisarev2Michael Zajtsev3Central Aero-Hydrodynamics Institute named after Prof. N.E. Zhukovsky (TsAGI). 1 Zhukovsky Street, Zhukovsky 140180 Moscow Region, Russia.Mechanical Engineering Research Institute of the Russian Academy of Science (IMASH RAN). 4 M. Kharitonievsky Per., 101990 Moscow, Russia. Central Aero-Hydrodynamics Institute named after Prof. N.E. Zhukovsky (TsAGI). 1 Zhukovsky Street, Zhukovsky 140180 Moscow Region, Russia.Central Aero-Hydrodynamics Institute named after Prof. N.E. Zhukovsky (TsAGI). 1 Zhukovsky Street, Zhukovsky 140180 Moscow Region, Russia. The novel destructive method is implemented for quantitative assessment of fatigue damage accumulation in the stress concentration zone accompanied by residual stress due to cold expansion of the through-thickness hole. Damage accumulation is reached by preliminary cyclic loading of plane specimens with cold-expanded holes. Narrow notches, emanating from the hole edge at different stages of high-cycle fatigue, serve to manifest a damage level. These notches are inserted without applying external load. Deformation response to local material removing, caused by pure residual stress influence, is measured by electronic speckle pattern interferometry (ESPI) in terms of in-plane displacement components. Normalized values of the notch mouth open displacement (NMOD), in-plane displacement component at the initial point of the notch acting in the notch direction (U0), in-plane displacement component at the final point of the notch acting in the notch direction (U1) and the stress intensity factor (SIF) are used as current damage indicators. Numerical integration of curves, describing an evolution of each fracture mechanics parameter over lifetime, produces the damage accumulation function in an explicit form. It is established that all four fracture mechanics parameters give very close results. https://www.fracturae.com/index.php/fis/article/view/3307Damage accumulationCold-expanded holeHigh-cycle fatigueCrack compliance methodFracture mechanics parameters |
| spellingShingle | Sviatoslav Eleonsky Yuri Matvienko Vladimir Pisarev Michael Zajtsev Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method Fracture and Structural Integrity Damage accumulation Cold-expanded hole High-cycle fatigue Crack compliance method Fracture mechanics parameters |
| title | Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method |
| title_full | Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method |
| title_fullStr | Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method |
| title_full_unstemmed | Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method |
| title_short | Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method |
| title_sort | damage accumulation near the cold expanded hole due to high cycle fatigue by crack compliance method |
| topic | Damage accumulation Cold-expanded hole High-cycle fatigue Crack compliance method Fracture mechanics parameters |
| url | https://www.fracturae.com/index.php/fis/article/view/3307 |
| work_keys_str_mv | AT sviatoslaveleonsky damageaccumulationnearthecoldexpandedholeduetohighcyclefatiguebycrackcompliancemethod AT yurimatvienko damageaccumulationnearthecoldexpandedholeduetohighcyclefatiguebycrackcompliancemethod AT vladimirpisarev damageaccumulationnearthecoldexpandedholeduetohighcyclefatiguebycrackcompliancemethod AT michaelzajtsev damageaccumulationnearthecoldexpandedholeduetohighcyclefatiguebycrackcompliancemethod |