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

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

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.

OriginalspracheEnglisch
Titel13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
Redakteure/-innenFengming Ren, Chengqing Wu, Tat Seng Lok
Herausgeber (Verlag)CI-Premier Pte Ltd
Seiten155-164
Seitenumfang10
ISBN (elektronisch)9789811426896
PublikationsstatusVeröffentlicht - 2019
Veranstaltung13th International Conference on Shock and Impact Loads on Structures, SILOS 2019 - Guangzhou, China
Dauer: 14 Dez. 201915 Dez. 2019

Publikationsreihe

Name13th International Conference on Shock and Impact Loads on Structures, SILOS 2019

Konferenz

Konferenz13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
Land/GebietChina
OrtGuangzhou
Zeitraum14/12/1915/12/19

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