Fan Blade Bird-Strike Analysis and Design

Bird ingestion is a costly and difficult engine test to perform. It is also one of the most challenging and complex analytical investigations in engine design. The capability to model bird ingestion effects is, therefore, critical to the success of any competitive jet engine program. LS-DYNA has been used in the design and analysis of fan blades for bird-strikes. Descriptions of the bird and blade models used in the analyses along with the contact algorithms used to describe their interaction will be presented. In addition, comparisons of analysis and test results from bird-strikes on fan blades will also be presented.