Dynamic deformation of cantilever plate under impact

Аuthors

Ryabov A. A.^1*, Romanov V. I.^1**, Kukanov S. S.^2***, Shmotin Y. N.^3****, Chupin P. V.^4*****

1. Sarov Engineering Center, Science and technology park "Sarov", 3, Parkovaya str., Satis, Nizhny Novgorod region, 607328, Russia
2. United Engine Corporation “Saturn”, 163, Lenin av., Rybinsk, Yaroslavl region, 152903, Russia
3. United engine corporation (UEC), 16, Budyonny avenue, Moscow, 105118, Russia
4. “Kuznetsov”, 29, Zavodskoye shosse, Samara, 443009, Russia

*e-mail: alex.ryabov@saec.ru
**e-mail: romanov@saec.ru
***e-mail: kukanov@saec.ru
****e-mail: yuri.shmotin@npo-saturn.ru
*****e-mail: pv.chupin@uec-kuznetsov.ru

Abstract

Fan blade out of a gas-turbine jet engine leads to impact of the released blade to the engine case and the adjacent blade. Due to this impact the adjacent blade can be significantly deformed. Strains in some local zones of the blade can reach minimum elongation value of the blades material. Because of this fact, investigation of dynamic deformation of blades in high-velocity impact is very important problem [19]. Numerical simulations show that stress and strain distributions in the impacted blades are quite close to the ones distributions in impacted flat plates with selected sizes and orientation of the impact. The results of experimental and numerical investigations of the flat plates impact are presented in this paper. The erosion criterion, which can be used for the adjacent blade in the fan blade out analysis, is also presented.

Keywords:

сantilever plate, high-velocity impact, finite element method, erosion criterion.