Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments
This work is devoted to the comparative analysis of three techniques for measurement of energy dissipation in metals under fatigue crack propagation: original contact heat flux sensor, post-processing of the infrared thermography data and lock-in thermography. The contact heat flux sensor allows rea...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2020-01-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2597 |
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| author | Alena Vedernikova Anastasiia Iziumova Aleksey Vshivkov Oleg Plekhov |
| author_facet | Alena Vedernikova Anastasiia Iziumova Aleksey Vshivkov Oleg Plekhov |
| author_sort | Alena Vedernikova |
| collection | DOAJ |
| description | This work is devoted to the comparative analysis of three techniques for measurement of energy dissipation in metals under fatigue crack propagation: original contact heat flux sensor, post-processing of the infrared thermography data and lock-in thermography. The contact heat flux sensor allows real-time recording of the heat source value. Non-contact temperature measurements by infrared thermography techniques allows one to calculate the heat source field on the specimen surface using the solution of heat conductivity equation. Lock-in thermography is a well-established technique for measuring of the dissipated energy under cyclic loading based on the analysis of the second harmonic amplitude of the thermal signal. This paper deals with the V-notched flat specimens made of stainless steel AISE 304 subjected to cyclic loading. It was shown that the dissipated energy values estimated by different techniques have a good qualitative agreement. Contact and non-contact measurements can be used for investigation on energy dissipation either in combination or separately. The measured values allows one to propose a relation between the fatigue crack growth rate and dissipated heat near the crack tip. |
| format | Article |
| id | doaj-art-d2c689560d7f4a3da4388f5b93d7b044 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-d2c689560d7f4a3da4388f5b93d7b0442025-01-02T23:37:42ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932020-01-0114511810.3221/IGF-ESIS.51.012597Three approaches to evaluate of the heat dissipated during fatigue crack propagation experimentsAlena Vedernikova0Anastasiia Iziumova1Aleksey Vshivkov2Oleg Plekhov3Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of ScienceNational Technical University of AthensNational Technical University of AthensNational Technical University of AthensThis work is devoted to the comparative analysis of three techniques for measurement of energy dissipation in metals under fatigue crack propagation: original contact heat flux sensor, post-processing of the infrared thermography data and lock-in thermography. The contact heat flux sensor allows real-time recording of the heat source value. Non-contact temperature measurements by infrared thermography techniques allows one to calculate the heat source field on the specimen surface using the solution of heat conductivity equation. Lock-in thermography is a well-established technique for measuring of the dissipated energy under cyclic loading based on the analysis of the second harmonic amplitude of the thermal signal. This paper deals with the V-notched flat specimens made of stainless steel AISE 304 subjected to cyclic loading. It was shown that the dissipated energy values estimated by different techniques have a good qualitative agreement. Contact and non-contact measurements can be used for investigation on energy dissipation either in combination or separately. The measured values allows one to propose a relation between the fatigue crack growth rate and dissipated heat near the crack tip.https://www.fracturae.com/index.php/fis/article/view/2597ir-thermographylock-in thermographyheat flux sensordissipated energyfatigue crack propagation |
| spellingShingle | Alena Vedernikova Anastasiia Iziumova Aleksey Vshivkov Oleg Plekhov Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments Fracture and Structural Integrity ir-thermography lock-in thermography heat flux sensor dissipated energy fatigue crack propagation |
| title | Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments |
| title_full | Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments |
| title_fullStr | Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments |
| title_full_unstemmed | Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments |
| title_short | Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments |
| title_sort | three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments |
| topic | ir-thermography lock-in thermography heat flux sensor dissipated energy fatigue crack propagation |
| url | https://www.fracturae.com/index.php/fis/article/view/2597 |
| work_keys_str_mv | AT alenavedernikova threeapproachestoevaluateoftheheatdissipatedduringfatiguecrackpropagationexperiments AT anastasiiaiziumova threeapproachestoevaluateoftheheatdissipatedduringfatiguecrackpropagationexperiments AT alekseyvshivkov threeapproachestoevaluateoftheheatdissipatedduringfatiguecrackpropagationexperiments AT olegplekhov threeapproachestoevaluateoftheheatdissipatedduringfatiguecrackpropagationexperiments |