The experimental study of heat dissipation during fatigue crack propagation under biaxial loading
The work is devoted to experimental study of heat flow evolution at the fatigue crack tip during biaxial loading. The plane samples of titanium alloy Graid-2 with thick of 1 mm were weakened by notch to initiate fatigue crack at the center of samples. Infrared thermography and the contact heat flux...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2019-02-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2296 |
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| author | Aleksei Vshivkov Oleg Plekhov Anastasiia Iziumova Aleksandr Zakharov Valery Shlyannikov |
| author_facet | Aleksei Vshivkov Oleg Plekhov Anastasiia Iziumova Aleksandr Zakharov Valery Shlyannikov |
| author_sort | Aleksei Vshivkov |
| collection | DOAJ |
| description | The work is devoted to experimental study of heat flow evolution at the fatigue crack tip during biaxial loading. The plane samples of titanium alloy Graid-2 with thick of 1 mm were weakened by notch to initiate fatigue crack at the center of samples. Infrared thermography and the contact heat flux sensor based on the Seebeck effect are used to monitor the dissipated thermal energy. During tests the samples were subjected to cyclic loading of 10 Hz with constant stress amplitude and different biaxial coefficient. The experimental results confirm the previous conclusions of authors about two regime of energy dissipation at fatigue crack tip. The heat dissipation curve can be divided in two stages. Under the first stage the power of heat flux is proportional to the multiplication of the crack rate by its length. In the second stage is characterized by classical linear relationship between crack rate and heat flux rom the crack tip. The qualitative correspondence of the energy approach to the classical representation based on the stress intensity factor was shown. |
| format | Article |
| id | doaj-art-03c55f0077cc4f35b9075c6d23e691ff |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-02-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-03c55f0077cc4f35b9075c6d23e691ff2025-01-02T20:56:20ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-02-011348The experimental study of heat dissipation during fatigue crack propagation under biaxial loadingAleksei Vshivkov0Oleg Plekhov1Anastasiia Iziumova2Aleksandr Zakharov3Valery Shlyannikov4Institute of Continuous Media Mechanics Russian Academy of Sciences Ural BranchInstitute of Continuous Media Mechanics of the Ural Branch of Russian Academy of ScienceInstitute of Continuous Media Mechanics of the Ural Branch of Russian Academy of ScienceKazan Scientific Center of Russian Academy of SciencesKazan Scientific Center of Russian Academy of SciencesThe work is devoted to experimental study of heat flow evolution at the fatigue crack tip during biaxial loading. The plane samples of titanium alloy Graid-2 with thick of 1 mm were weakened by notch to initiate fatigue crack at the center of samples. Infrared thermography and the contact heat flux sensor based on the Seebeck effect are used to monitor the dissipated thermal energy. During tests the samples were subjected to cyclic loading of 10 Hz with constant stress amplitude and different biaxial coefficient. The experimental results confirm the previous conclusions of authors about two regime of energy dissipation at fatigue crack tip. The heat dissipation curve can be divided in two stages. Under the first stage the power of heat flux is proportional to the multiplication of the crack rate by its length. In the second stage is characterized by classical linear relationship between crack rate and heat flux rom the crack tip. The qualitative correspondence of the energy approach to the classical representation based on the stress intensity factor was shown.https://www.fracturae.com/index.php/fis/article/view/2296FatigueBiaxial loadingCrack propagationDissipated energy |
| spellingShingle | Aleksei Vshivkov Oleg Plekhov Anastasiia Iziumova Aleksandr Zakharov Valery Shlyannikov The experimental study of heat dissipation during fatigue crack propagation under biaxial loading Fracture and Structural Integrity Fatigue Biaxial loading Crack propagation Dissipated energy |
| title | The experimental study of heat dissipation during fatigue crack propagation under biaxial loading |
| title_full | The experimental study of heat dissipation during fatigue crack propagation under biaxial loading |
| title_fullStr | The experimental study of heat dissipation during fatigue crack propagation under biaxial loading |
| title_full_unstemmed | The experimental study of heat dissipation during fatigue crack propagation under biaxial loading |
| title_short | The experimental study of heat dissipation during fatigue crack propagation under biaxial loading |
| title_sort | experimental study of heat dissipation during fatigue crack propagation under biaxial loading |
| topic | Fatigue Biaxial loading Crack propagation Dissipated energy |
| url | https://www.fracturae.com/index.php/fis/article/view/2296 |
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