A simplified finite element model for crashworthiness investigations

As well-known, experimental drop tests for the study of the passive safety of aeronautical structures are very expensive and, therefore, in many cases complex to be replicated. In this context, the support of already-validated numerical tools is fundamental to reduce costs, develop new structural so...

Full description

Saved in:
Bibliographic Details
Main Authors: Manzo, Mario, Lamanna, Giuseppe, Caprio, Francesco Di, Chiariello, Antonio, Schatrow, Paul, Waimer, Matthias, Toso, Nathalie
Format: Conference Proceeding
Language:English
Subjects:
Airframes
Computing costs
Crashworthiness
Drop tests
Finite element method
Fuselages
Impact strength
Impact tests
Internal energy
Mathematical models
Numerical models
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:As well-known, experimental drop tests for the study of the passive safety of aeronautical structures are very expensive and, therefore, in many cases complex to be replicated. In this context, the support of already-validated numerical tools is fundamental to reduce costs, develop new structural solutions and carry out further tests with the awareness to have got underlying reliable numerical results. This article deals with the development of a finite element model of a fuselage section suitable for usage in structural optimizations and designs of experiment with crashworthiness purposes. FE model has been made starting from a more complex numerical model used previously by authors to replicate accurately an experimental drop test. Several simplifications have been performed allowing reducing sharply the computational costs. After an overview of both models, paper is addressed to show the reliability of the simplified FE model, against the complex one, by comparing the internal energy and the deformations predicted by both models. The simplified model was found to be a suitable tool in terms of level of accuracy and computational costs.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0034954