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Crash concepts for CFRP transport aircraft – comparison of the traditional bend frame concept versus the developments in a tension absorbers concept

Waimer, Matthias and Feser, Thomas and Schatrow, Paul and Schueler, Dominik (2017) Crash concepts for CFRP transport aircraft – comparison of the traditional bend frame concept versus the developments in a tension absorbers concept. International Journal of Crashworthiness. Taylor & Francis. DOI: 10.1080/13588265.2017.1341279 ISSN 1358-8265

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Official URL: http://www.tandfonline.com/doi/full/10.1080/13588265.2017.1341279

Abstract

Due to their inherently brittle behaviour, carbon fibre reinforced plastics (CFRP) structures demand for a specific design to achieve appropriate crash energy absorption compared to classical metallic fuselage designs. In this paper, experimental as well as numerical studies on two different crashworthy designs are presented. The first concept aims to absorb the crash energy by crushing of CFRP components below a reinforced cargo cross beam in combination with further energy absorbing devices in the lower side shell. The feasibility of this concept was in the meantime proven by tests at the coupon and structural element level. An alternative crash concept making use of energy absorption in so-called tension absorbers in the passenger and cargo floor structure was developed and assessed with the focus on a reduction of structural mass in combination with improved concept robustness. This paper provides a summary of the performed research work and discusses the context of the concept development. Details on the individual research tasks can be found in further publications which are given in the references.

Item URL in elib:https://elib.dlr.de/117233/
Document Type:Article
Title:Crash concepts for CFRP transport aircraft – comparison of the traditional bend frame concept versus the developments in a tension absorbers concept
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Waimer, Matthiasmatthias.waimer (at) dlr.deUNSPECIFIED
Feser, ThomasThomas.Feser (at) dlr.deUNSPECIFIED
Schatrow, Paulpaul.schatrow (at) dlr.deUNSPECIFIED
Schueler, Dominikdominik.schueler (at) dlr.deUNSPECIFIED
Date:13 July 2017
Journal or Publication Title:International Journal of Crashworthiness
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1080/13588265.2017.1341279
Publisher:Taylor & Francis
ISSN:1358-8265
Status:Published
Keywords:Transport aircraft; crashworthiness; composite material; finite element simulation; dynamic testing; crushing absorption; tension absorption; bearing failure
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Waimer, Matthias
Deposited On:21 Dec 2017 11:24
Last Modified:06 Sep 2019 15:18

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