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Multiaxial Fatigue Criteria and Durability of Titanium Compressor Disks in Low- and Very-high-cycle Fatigue Modesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Дата последнего поиска статьи во внешних источниках: 17 января 2018 г.
- Авторы: Burago Nikolay, Nikitin Ilia
- Сборник: MATHEMATICAL MODELING AND OPTIMIZATION OF COMPLEX STRUCTURES
- Серия: Computational Methods in Applied Sciences
- Том: 40
- Год издания: 2016
- Место издания: Jyvaskyla, FINLAND
- Первая страница: 117
- Последняя страница: 130
- DOI: 10.1007/978-3-319-23564-6_8
- Аннотация: Life duration for titanium disks of low temperature part of compressor aero-engine D30-Ku is investigated. Several criteria and models are tested under conditions of low-cycle fatigue (LCF) and very-high-cycle fatigue (VHCF). Parameters of the criteria and models are determined from uniaxial fatigue tests for titanium alloy VT3-1. Stress-strain state of disks and blades is calculated taking into account cyclic centrifugal, aerodynamic, contact loads and blade vibrations. Calculated stresses and strains are used as input data for multiaxial models of LCF and VHCF regimes. Location and scales of fracture as well as time to fracture are calculated. The results of calculations are in good agreement with observations during engine exploitation and correspond to data of fractographic investigations of damaged disks.
- Добавил в систему: Левитин Александр Леонидович