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Crashworthiness of a twin-walled fuselage design

Sturm, Ralf (2016) Crashworthiness of a twin-walled fuselage design. 1st International Conference on Impact Loading of Structures and Materials, 22.-26. Mai. 2016, Turin, Italien.

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Abstract

Sandwich structures consisting of thin stiff facesheets and a thick, low density core exhibit excellent stiffness-to-weight ratio and are investigated for novel light weight fuselage concepts. Currently the application of sandwich structures in transport aircraft is limited to secondary structures, since further understanding is required in the field of manufacturing, repair, vulnerability and safety before sandwich design can be applied for primary structures. Folded cores are currently investigated for future fuselage applications since the open cellular design of foldcore cells would solve the problem of humidity accumulation of closed cellular sandwich cores such as honeycombs. For novel fuselage concepts safety regulations require an equivalent crashworthiness compared to the conventional metal fuselage design. Brittle failure mechanisms of CFRP structures make the verification of equivalent crashworthiness for CFRP fuselage concepts challenging since conventional metal fuselages absorb a significant portion of the kinetic energy by plasticization.

Item URL in elib:https://elib.dlr.de/105459/
Document Type:Conference or Workshop Item (Speech)
Title:Crashworthiness of a twin-walled fuselage design
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sturm, RalfRalf.Sturm (at) dlr.deUNSPECIFIED
Date:22 May 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:crashworthiness, composite, fuselage, sandwich, foldcore
Event Title:1st International Conference on Impact Loading of Structures and Materials
Event Location:Turin, Italien
Event Type:international Conference
Event Dates:22.-26. Mai. 2016
Organizer:Politechnico Di Torino
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 Vehicle Concepts > Lightweight and Hybrid Design Methods
Institute of Structures and Design > Structural Integrity
Deposited By: Sturm, Ralf
Deposited On:12 Oct 2016 11:29
Last Modified:12 Oct 2016 11:29

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