Kriescher, Michael and Salameh, Walid and Beeh, Elmar and Roettger, Jan and Droste, Alexander and Otto, Manuel (2014) POSSIBILITIES FOR THE USE OF METAL-HYBRID-STRUCTURES FOR VEHICLE CRASH LOAD CASES. Euro Hybrid, Stade.
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Abstract
A major challenge of lightweight construction of car bodies, particularly with materials with high density, such as steel, is the need to use a very low wall thickness. This makes the structures sus-ceptible to buckling, especially in crash load cases. The DLR’s institute of vehicle concepts therefore investigates the use of hybrid structures, for exam-ple by reinforcing the steel shell of a beam with lightweight cores. This leads to a higher stability of the structure, especially for the side impact or the pole crash, which results in a much higher weight specific energy absorption. In order to maximize the performance, a specific balance between several parameters such as the wall thickness, the material properties of the core and material properties of the shell, must be achieved. A multi-parameter optimization was therefore conducted, using LS-Dyna and LS-Opt, in order to maximize the weight specific energy absorption. Also, the impact of different materials on the performance of such structures was investigated. Possible uses for metal-hybrid structures are a rocker rail, or a door reinforcement, for example. They are also extensively used in the car body of a lightweight vehicle which is currently under de-velopment at the institute of vehicle concepts.
Item URL in elib: | https://elib.dlr.de/89407/ | |||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||||||||
Title: | POSSIBILITIES FOR THE USE OF METAL-HYBRID-STRUCTURES FOR VEHICLE CRASH LOAD CASES | |||||||||||||||||||||
Authors: |
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Date: | 10 April 2014 | |||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||
Open Access: | Yes | |||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||
In SCOPUS: | No | |||||||||||||||||||||
In ISI Web of Science: | No | |||||||||||||||||||||
Status: | Published | |||||||||||||||||||||
Keywords: | lightweight design, car body, crash behavior, metal hybrid structures. | |||||||||||||||||||||
Event Title: | Euro Hybrid | |||||||||||||||||||||
Event Location: | Stade | |||||||||||||||||||||
Event Type: | national Conference | |||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
HGF - Program: | Transport | |||||||||||||||||||||
HGF - Program Themes: | Terrestrial Vehicles (old) | |||||||||||||||||||||
DLR - Research area: | Transport | |||||||||||||||||||||
DLR - Program: | V BF - Bodengebundene Fahrzeuge | |||||||||||||||||||||
DLR - Research theme (Project): | V - Project Neuartige Fahrzeugkonzepte und -strukturen (old) | |||||||||||||||||||||
Location: | Stuttgart | |||||||||||||||||||||
Institutes and Institutions: | Institute of Vehicle Concepts | |||||||||||||||||||||
Deposited By: | Kriescher, Michael | |||||||||||||||||||||
Deposited On: | 23 Jun 2014 13:32 | |||||||||||||||||||||
Last Modified: | 31 Jul 2019 19:46 |
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