FEM analysis of in-flight ice break-up

被引：24
|
作者：
Zhang, Shiping [1 ]
El Kerdi, Oubal [1 ]
Khurram, Rooh A. [1 ]
Habashi, Wagdi G. [1 ]
机构：
[1] McGill Univ, CFD Lab, Dept Mech Engn, Montreal, PQ H3A 2S6, Canada
来源：
FINITE ELEMENTS IN ANALYSIS AND DESIGN | 2012年 / 57卷
关键词：
Ice break-up; Ice shedding; In-flight icing; Finite element methods; Fracture mechanics; Multi-physics phenomenon; STRAIN-RATE; FRACTURE; BRITTLE; FINITE; DEFORMATION; FORMULATION; TRANSITION; SIMULATION; FAILURE; FLOWS;
D O I：
10.1016/j.finel.2012.03.005
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
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. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：55 / 66
页数：12
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