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

Résultats de recherche: Chapitre dans un livre, un rapport, des actes de conférencesContribution à une conférenceRevue par des pairs

Résumé

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.

langue originaleAnglais
titre13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
rédacteurs en chefFengming Ren, Chengqing Wu, Tat Seng Lok
EditeurCI-Premier Pte Ltd
Pages155-164
Nombre de pages10
ISBN (Electronique)9789811426896
étatPublié - 2019
Evénement13th International Conference on Shock and Impact Loads on Structures, SILOS 2019 - Guangzhou, Chine
Durée: 14 déc. 201915 déc. 2019

Série de publications

Nom13th International Conference on Shock and Impact Loads on Structures, SILOS 2019

Une conférence

Une conférence13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
Pays/TerritoireChine
La villeGuangzhou
période14/12/1915/12/19

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