Abstract
Using a fracture mechanics framework, this paper presents a finite element method to simulate the break-up of ice accreted on the wings of aircraft. The fully automated ice break-up module is integrated in FENSAP-ICE [1,2], which is an in-flight ice accretion simulation code that solves flow, droplet impingement and ice accretion, in sequence. The approach is validated by comparing with published results for a single edge cracked plate test case. Numerous complicated ice-shapes are analyzed and comparison is performed with a contemporary fracture mechanics code. Under typical icing and flow conditions, linear elasticity is found to be adequate for ice break-up analysis. An important finding of this study is that the breaking of ice has a strong dependence on its shape, i.e. under similar aerodynamic loading, some ice shapes fail while others do not.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 55-66 |
| Number of pages | 12 |
| Journal | Finite Elements in Analysis and Design |
| Volume | 57 |
| DOIs | |
| State | Published - Sep 2012 |
Keywords
- Finite element methods
- Fracture mechanics
- Ice break-up
- Ice shedding
- In-flight icing
- Multi-physics phenomenon
ASJC Scopus subject areas
- Analysis
- General Engineering
- Computer Graphics and Computer-Aided Design
- Applied Mathematics