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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publication13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
EditorsFengming Ren, Chengqing Wu, Tat Seng Lok
PublisherCI-Premier Pte Ltd
Pages155-164
Number of pages10
ISBN (Electronic)9789811426896
Publication statusPublished - 2019
Event13th International Conference on Shock and Impact Loads on Structures, SILOS 2019 - Guangzhou, China
Duration: 14 Dec 201915 Dec 2019

Publication series

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

Conference

Conference13th International Conference on Shock and Impact Loads on Structures, SILOS 2019
Country/TerritoryChina
CityGuangzhou
Period14/12/1915/12/19

Keywords

  • Aluminium plate tests
  • Arbitrary Lagrangian Eulerian
  • Blast loading
  • Explosive Driven Shock Tube
  • Free Air Blast
  • Numerical Analysis

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