Documents

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 publicationSILOS proceedings (13th Shock and Impact Loads on Structures 2019)
Place of PublicationSingapore
PublisherCI-PREMIER PTE LTD
Pages155-164
Number of pages10
ISBN (Print)978-981-14-2689-6
Publication statusPublished - 15 Dec 2019
Event13th Shock and Impact Loads on Structures 2019 - Guangzhou, China
Duration: 13 Dec 201915 Dec 2019

Conference

Conference13th Shock and Impact Loads on Structures 2019
Abbreviated titleSILOS
CountryChina
CityGuangzhou
Period13/12/1915/12/19

    Research areas

  • Aluminum plates, blast loading, lagrangian approaches

ID: 49311805