Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stage
The article describes a method for assessing the strength reliability of high-temperature heat exchangers with service life of several tens of thousands of hours at the design stage, when there is not enough statistical data on the operating time of elements and material properties. The method shows...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2020-12-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2915 |
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| _version_ | 1841564152270684160 |
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| author | Vyacheslav Popov V.V. Kashelkin A.S. Demidov |
| author_facet | Vyacheslav Popov V.V. Kashelkin A.S. Demidov |
| author_sort | Vyacheslav Popov |
| collection | DOAJ |
| description | The article describes a method for assessing the strength reliability of high-temperature heat exchangers with service life of several tens of thousands of hours at the design stage, when there is not enough statistical data on the operating time of elements and material properties. The method shows, how to determine the missing coefficients of variation for calculating reliability and build the function of the probability of failure-free operation, considering the change of the properties of the structural material over time. The method of visualizing the distribution of zones, both satisfying and not satisfying reliability criteria at the nodes of any finite element model, is also described. |
| format | Article |
| id | doaj-art-2381221a69644ea1ab227048a0566dfd |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-2381221a69644ea1ab227048a0566dfd2025-01-02T23:01:43ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932020-12-01155510.3221/IGF-ESIS.55.10Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stageVyacheslav Popov0V.V. Kashelkin1A.S. Demidov2Moscow Aviation Institute, RussiaJSC "Krasnaya Zvezda", RussiaMoscow Aviation Institute, RussiaThe article describes a method for assessing the strength reliability of high-temperature heat exchangers with service life of several tens of thousands of hours at the design stage, when there is not enough statistical data on the operating time of elements and material properties. The method shows, how to determine the missing coefficients of variation for calculating reliability and build the function of the probability of failure-free operation, considering the change of the properties of the structural material over time. The method of visualizing the distribution of zones, both satisfying and not satisfying reliability criteria at the nodes of any finite element model, is also described.https://www.fracturae.com/index.php/fis/article/view/2915ReliabilityStrengthHeat-exchangerAssessment |
| spellingShingle | Vyacheslav Popov V.V. Kashelkin A.S. Demidov Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stage Fracture and Structural Integrity Reliability Strength Heat-exchanger Assessment |
| title | Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stage |
| title_full | Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stage |
| title_fullStr | Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stage |
| title_full_unstemmed | Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stage |
| title_short | Assessment of the strength reliability of high-temperature heat exchangers with long service life at the design stage |
| title_sort | assessment of the strength reliability of high temperature heat exchangers with long service life at the design stage |
| topic | Reliability Strength Heat-exchanger Assessment |
| url | https://www.fracturae.com/index.php/fis/article/view/2915 |
| work_keys_str_mv | AT vyacheslavpopov assessmentofthestrengthreliabilityofhightemperatureheatexchangerswithlongservicelifeatthedesignstage AT vvkashelkin assessmentofthestrengthreliabilityofhightemperatureheatexchangerswithlongservicelifeatthedesignstage AT asdemidov assessmentofthestrengthreliabilityofhightemperatureheatexchangerswithlongservicelifeatthedesignstage |