Comparison of numerical testing methods in terms of Impulse loading applied to structural elements
PBN-AR
Instytucja
Wydział Inżynierii Mechanicznej (Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Theoretical and Applied Mechanics
ISSN
1429-2955
EISSN
Wydawca
POLISH SOC THEORETICAL & APPLIED MECHANICS
DOI
URL
Rok publikacji
2013
Numer zeszytu
3
Strony od-do
615-625
Numer tomu
51
Identyfikator DOI
Liczba arkuszy
0,5
Słowa kluczowe
en
blast wave
FEM
Eulerian mesh
Streszczenia
Język
en
Treść
his paper presents comparison of numerical testing method s of an impulse loading which comes from a detonation process, i.e. blast wave propagatio n in a gas medium. Investigations were carried out using an analytical and numerical model bas ed on the Finite Element Method. In order to reduce computational time, the substitu te analytical model with one degree of freedom was implemented, which replaced a chosen a ctual system (I-section steel column). For structure modelling, the constitutive model w as used, which included the strain rate effect. From the performed analyses, an acceptable simi larity was noticed, although the discrete model due to greater forces gave inflated results. Nevertheless, it should be pointed out that simplified methods do not take any wave and flow around effects into consideration, which have an influence on the dynamical response of the struc ture and are possible to implement in the gas medium coupling.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
592163