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Detail publikace
DOBEŠ, M. VRBKA, J.
Originální název
Stress and deformation response of a car safety frame on static and impact loading
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
The safety frame is the main element of passive safety for most racing cars. Till now the frames stiffness is investigated only on the basis of static loading tests, which are not able to take into account the dynamic effect of the high speed impact due to the car collision. For more correct frame safety analysis the dynamic impact loading simulation is necessary. The influence of the impact velocity on the frame stiffness, stress and deformation has been studied and comparison with results obtained for the static loading has been performed. The static and dynamic loadings exhibit very different stiffness, deformation and stress time courses in the time just after impact. Later the differences are not so big. Furthermore the car rollover has been modeled as a dynamic impact problem for the impact velocity 20 km/hour. A relative good agreement with corresponding prescribed static test has been achieved with exception of the time period close to impact. The explicit version of the finite element method (FEM) has been utilized for the impact computational analysis, namely FEM code LS-DYNA.
Klíčová slova
car safety frame, impact loading, stress and deformation analysis, finite element method, explicit analysis.
Autoři
DOBEŠ, M.; VRBKA, J.
Rok RIV
2014
Vydáno
26. 8. 2014
ISSN
1801-1217
Periodikum
Bulletin of Applied Mechanics
Ročník
Číslo
8
Stát
Česká republika
Strany od
10
Strany do
15
Strany počet
6
BibTex
@article{BUT108959, author="Martin {Dobeš} and Jan {Vrbka}", title="Stress and deformation response of a car safety frame on static and impact loading", journal="Bulletin of Applied Mechanics", year="2014", volume="2014", number="8", pages="10--15", issn="1801-1217" }