Numerical investigation of aluminium plates subjected to blast loading using arbitrary lagrangian eulerian and lagrangian approaches

Oussama Atoui, Azer Maazoun, Bachir Belkassem, Arnaud Jonet, Lincy Pyl, David Lecompte

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdragepeer review

Samenvatting

This paper deals with the non-linear dynamic behavior of thin Aluminium plates subjected to blast loading. Aluminium plates with grade EN AW-1050A-H24 are studied. The square specimens have an area of interest of 300*300mm2 and a thickness of 2.5mm. The blast loading is generated using free air blast (FAB) and explosive driven shock tube (EDST). A numerical finite element model (FEM) using the commercial software LS-DYNA is developed and validated based on the experimental data from literature. A failure model is combined with the modified Johnson-Cook constitutive relation to study the dynamic failure on the target. A comparative study between the arbitrary Lagrangian Eulerian (ALE) and the Lagrangian approach is assessed to guarantee the most adequate formulation for the numerical model. The out of plane displacement from the ALE simulations were found to be in good agreement with both the experimental values and the corresponding results from the Lagrangian simulations. In this paper, an effort is made to present a detailed numerical model for the prediction of the nonlinear dynamic behavior of Aluminium plates subjected to blast loading.

Originele taal-2Engels
Titel13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
RedacteurenFengming Ren, Chengqing Wu, Tat Seng Lok
UitgeverijCI-Premier Pte Ltd
Pagina's155-164
Aantal pagina's10
ISBN van elektronische versie9789811426896
StatusGepubliceerd - 2019
Evenement13th International Conference on Shock and Impact Loads on Structures, SILOS 2019 - Guangzhou, China
Duur: 14 dec. 201915 dec. 2019

Publicatie series

Naam13th International Conference on Shock and Impact Loads on Structures, SILOS 2019

Congres

Congres13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
Land/RegioChina
StadGuangzhou
Periode14/12/1915/12/19

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