Smojver, Ivica and Ivančević, Darko (2011) Bird strike damage analysis in aircraft structures using Abaqus/Explicit and coupled Eulerian Lagrangian approach. = Bird strike damage analysis in aircraft structures using Abaqus/Explicit and coupled Eulerian Lagrangian approach. Composites Science and Technology, 71 (4). pp. 489-498. ISSN 0266-3538. Vrsta rada: Original scientific paper. Kvartili JCR: Q1 (2011). .
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Abstract
The subject of this paper is numerical prediction of bird strike induced damage in real aeronautical structures using highly detailed finite element models and modern numerical approaches. Due to the complexity of today's aeronautical structures, numerical damage prediction methods have to be able to take into account various failure and degradation models of different materials. A continuum damage mechanics approach has been employed to simulate failure initiation and damage evolution in unidirectional composite laminates. Hashin's failure initiation criteria have been employed in order to be able to distinct between four ply failure modes. The problem of soft body impacts has been tackled by applying the Coupled Eulerian Lagrangian technique, thereby avoiding numerical difficulties associated with extensive mesh distortion. This improvement in impactor deformation modelling resulted in a more realistic behaviour of bird material during impact. Numerical geometrical and material nonlinear transient dynamic analyses have been performed using Abaqus/Explicit. The main focus of the work presented in this paper is the application of the damage prediction procedure in damage assessment of bird impact on a typical large airliner inboard flap structure. Due to the high cost of gas-gun testing of aircraft components, experimental testing on the real flap structure could not have been performed. In order to evaluate the accuracy of the presented method, the bird and composite damage model have been validated against experimental data available in the literature. © 2010 Elsevier Ltd.
| Item Type: | Article (Original scientific paper) |
|---|---|
| Keywords (Croatian): | A. Layered structures; B. Impact behaviour; C. Damage mechanics; C. Finite element analysis (FEA); Carbon fibres; Aerodynamics; Aircraft accidents; Aircraft manufacture; Airframes; Carbon fibers; Continuum damage mechanics; Failure analysis; Finite element method; Forecasting; Lagrange multipliers; Mechanics; Numerical methods; Damage detection |
| Subjects: | TECHNICAL SCIENCE |
| Divisions: | 1300 Department of Aeronautical Engineering > 1310 Chair of Aerodynamics |
| Indexed in Web of Science: | Yes |
| Indexed in Current Contents: | Yes |
| Citations JCR: | 16 (21.4.2015.) |
| Quartiles: | Q1 (2011) |
| Citations SCOPUS: | 16 (21.4.2015.) |
| Date Deposited: | 21 Apr 2015 11:29 |
| Last Modified: | 21 Apr 2015 11:29 |
| URI: | http://repozitorij.fsb.hr/id/eprint/3831 |
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