Coupled Euler Lagrangian Approach Using Abaqus /Explicit in the Bird Strike Aircraft Damage Analysis

Smojver, Ivica and Ivančević, Darko (2010) Coupled Euler Lagrangian Approach Using Abaqus /Explicit in the Bird Strike Aircraft Damage Analysis. = Coupled Euler Lagrangian Approach Using Abaqus /Explicit in the Bird Strike Aircraft Damage Analysis. In: 2010 Simulia Customers Conference, 25-27.05.2010., Providence; USA.

[img]
Preview
Text
Dummy article.pdf - Draft Version Jezik dokumenta:English

Download (79kB) | Preview

Abstract

Bird impact damage in complex aircraft structure has been investigated using explicit transient dynamic analysis by Abaqus/Explicit in order to fully employ its large library of elements, material models and the ability of implementing user defined materials. The numerical procedure has been applied on the very detailed large airplane secondary structure consisting of sandwich, composite and metallic structural items that have been modeled with 3D, shell and continuum shell elements, coupled with appropriate kinematic constraints. Bird has been modeled using Coupled Euler Lagrangian approach, in order to avoid the numerical difficulties connected with the mesh. The impact has been applied in the area that is the most probably subjected to the impact damage during the exploitation. The application point and velocity vector have been varied and the comparisons between total, kinetic, internal and damage energies have been performed. Various failure modes, such as CFRP face layer rupture, failure of composite matrix, damage initiation / evolution in the Nomex core and elastoplastic failure of a metallic structure have been investigated. Besides, general contact has been applied as to efficiently capture the contact between impactor and structure, as well as large deformations of the different structural components. Visualization of failure modes has been performed and damaged area compared to the available references. Compared to the classic Lagrangian modeling of the bird, the analysis has proven to be more stable, and the results, such as and damage areas, physically more realistic.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Airplane structures; Composites; Bird strike; Impact damage; Coupled Eulerian Lagrangian analysis; Contact; High lift devices; Abaqus/Explicit
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
TECHNICAL SCIENCE > Aviation, rocket and space technology
Divisions: 1300 Department of Aeronautical Engineering > 1310 Chair of Aerodynamics
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 14 Jul 2015 07:51
Last Modified: 14 Jul 2015 07:51
URI: http://repozitorij.fsb.hr/id/eprint/4623

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

Nema podataka za dohvacanje citata