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Failure Mechanisms in Energy-absorbing Composite Structures

Johnson, Alastair and David, Matthew (2010) Failure Mechanisms in Energy-absorbing Composite Structures. Philosophical Magazine, 90 (31-32), pp. 4245-4261. Taylor & Francis. ISSN 1478-6435. (In Press)

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Abstract

The paper describes quasi-static tests to determine the energy absorption properties of composite crash energy absorbing segment elements under axial loads. Detailed computer tomography scans of failed specimens are used to identify local compression crush failure mechanisms at the crush front. These mechanisms are important for selecting composite materials for energy absorbing structures such as helicopter and aircraft subfloors. FE models of the failure processes are described which could be the basis for materials selection and future design procedures for crashworthy structures.

Document Type:Article
Title:Failure Mechanisms in Energy-absorbing Composite Structures
Authors:
AuthorsInstitution or Email of Authors
Johnson, Alastairalastair.johnson@dlr.de
David, Matthewmatthew.david@dlr.de
Date:7 November 2010
Journal or Publication Title:Philosophical Magazine
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:90
Page Range:pp. 4245-4261
Publisher:Taylor & Francis
Series Name:Philosophical Magazine
ISSN:1478-6435
Status:In Press
Keywords:crashworthiness, energy absorption, composite material, finite-element modelling, compressive testing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Robust Rotorcraft
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Dr.phil. Alastair Johnson
Deposited On:09 Jan 2011 18:20
Last Modified:26 Feb 2013 15:02

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