Development of the criteria of analyzing the stress-strain state of gas turbine engine parts in the elastoplastic range
A dimensionless complex criterion is proposed to be used for the analysis of the stress-strain state of gas turbine parts with the purpose of diagnosing their most vulnerable areas. The criterion includes the stress-strain stiffness criterion characterizing the stress-strain type and the energy crit...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Samara National Research University
2016-12-01
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| Series: | Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение |
| Subjects: | |
| Online Access: | https://journals.ssau.ru/vestnik/article/viewFile/3108/3020 |
| Summary: | A dimensionless complex criterion is proposed to be used for the analysis of the stress-strain state of gas turbine parts with the purpose of diagnosing their most vulnerable areas. The criterion includes the stress-strain stiffness criterion characterizing the stress-strain type and the energy criterion characterizing the stress level of the material in elastoplastic areas. The energy criterion includes the elastic and plastic components of energy. Application of the complex criterion for the diagnostics of the most vulnerable areas of gas turbine parts and for the optimization of the geometric parameters and shape with the aim of minimizing the stress level is discussed. The efficiency of the criterion is illustrated by the example of stress-strain state analysis of gas turbine disks and by the example of varying the parameters in the process of optimization of the compressor disk structure. |
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| ISSN: | 2542-0453 2541-7533 |