Accumulation of Fatigue Microdefects– Entropy Interpretation
The authors of the paper presented some of the models describing the process of micro-cracks’ development. In this study, the process of a selected model of micro-cracking was analyzed. In the model it was assumed that the damage to the material has some “thermodynamic properties” or rather universa...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2018-12-01
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| Series: | Fatigue of Aircraft Structures |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/fas-2018-0010 |
| _version_ | 1828081735349305344 |
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| author | Szafran Krzysztof Delas Nikolaj |
| author_facet | Szafran Krzysztof Delas Nikolaj |
| author_sort | Szafran Krzysztof |
| collection | DOAJ |
| description | The authors of the paper presented some of the models describing the process of micro-cracks’ development. In this study, the process of a selected model of micro-cracking was analyzed. In the model it was assumed that the damage to the material has some “thermodynamic properties” or rather universal properties inherent in most complex systems. In order to calculate the long-term fatigue strength properties of a structure, it is important to have a good understanding of the distribution parameters of the number of defects of different sizes. A model was built using the entropy principle, which is effectively used to test complex systems that are difficult to formalize. As a result of many experimental studies it was found that the development of fatigue damage is closely related to the process of plastic deformation of the material at the contact point of local defects. The results of computer calculations and simulations led to the conclusions presented in the final part of this paper. |
| first_indexed | 2024-04-11T03:39:26Z |
| format | Article |
| id | doaj.art-f38f6d2b4046468cbeba8e3779ae0e24 |
| institution | Directory Open Access Journal |
| issn | 2300-7591 |
| language | English |
| last_indexed | 2024-04-11T03:39:26Z |
| publishDate | 2018-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Fatigue of Aircraft Structures |
| spelling | doaj.art-f38f6d2b4046468cbeba8e3779ae0e242023-01-02T04:26:29ZengSciendoFatigue of Aircraft Structures2300-75912018-12-0120181010411610.2478/fas-2018-0010fas-2018-0010Accumulation of Fatigue Microdefects– Entropy InterpretationSzafran Krzysztof0Delas Nikolaj1Institute of Aviation, Warsaw, PolandNational Aviation University, Kyiv, UkraineThe authors of the paper presented some of the models describing the process of micro-cracks’ development. In this study, the process of a selected model of micro-cracking was analyzed. In the model it was assumed that the damage to the material has some “thermodynamic properties” or rather universal properties inherent in most complex systems. In order to calculate the long-term fatigue strength properties of a structure, it is important to have a good understanding of the distribution parameters of the number of defects of different sizes. A model was built using the entropy principle, which is effectively used to test complex systems that are difficult to formalize. As a result of many experimental studies it was found that the development of fatigue damage is closely related to the process of plastic deformation of the material at the contact point of local defects. The results of computer calculations and simulations led to the conclusions presented in the final part of this paper.https://doi.org/10.2478/fas-2018-0010distribution of microcracksentropy interpretation of microc-racksfatigue curve formula |
| spellingShingle | Szafran Krzysztof Delas Nikolaj Accumulation of Fatigue Microdefects– Entropy Interpretation Fatigue of Aircraft Structures distribution of microcracks entropy interpretation of microc-racks fatigue curve formula |
| title | Accumulation of Fatigue Microdefects– Entropy Interpretation |
| title_full | Accumulation of Fatigue Microdefects– Entropy Interpretation |
| title_fullStr | Accumulation of Fatigue Microdefects– Entropy Interpretation |
| title_full_unstemmed | Accumulation of Fatigue Microdefects– Entropy Interpretation |
| title_short | Accumulation of Fatigue Microdefects– Entropy Interpretation |
| title_sort | accumulation of fatigue microdefects entropy interpretation |
| topic | distribution of microcracks entropy interpretation of microc-racks fatigue curve formula |
| url | https://doi.org/10.2478/fas-2018-0010 |
| work_keys_str_mv | AT szafrankrzysztof accumulationoffatiguemicrodefectsentropyinterpretation AT delasnikolaj accumulationoffatiguemicrodefectsentropyinterpretation |