Calculation of crack stress intensity factor in high pressure turbine disk

Аuthors

Leontiev M. K.^1*, Lanevskiy Т. M.^2**

1. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
2. Lyulka Scientific and Technical Center of the NPO "Saturn", 13 Kasatkin St., Moscow, 129301, Russia

*e-mail: lemk@alfatran.com
**e-mail: timurlan701@mail.ru

Abstract

The article presents the methodology of calculation of crack growth rate in the turbine disk. The issues of constructing of a finite element mesh associated with the need to limit the number of finite element computational model are considered. Stress intensity factors for two cracks in the hub of the simulated disk in high pressure turbine are compared.

Keywords:

crack growth, stress intensity factor, j-integral, high pressure turbine disk finite element method.