Modeling and characterization of bilayer containment ring in gas turbine engine

Abstract

In this paper, we provide comprehensive study of lightweight bilayer containment rings in gas turbine engines to contain a released blade. Three different materials were considered to form bilayer rings: aluminum foam, titanium, and Kevlar fabric. The effectiveness of the bilayer combinations is established through fundamental oblique impact studies on a planar target and blade shedding response of a fan disc. The effect of a gap between the two layers on its shock absorption and impact response is also evaluated. The results of our studies indicate that a bilayer aluminum foam-Kevlar ring with a gap offers greater energy absorption capability.

Topics & Concepts