Transient response of a laminated sandwich plate with viscoelastic core subjected to air blast: Theory and experiment

D. Balkan*, O. Acar, H. S. Türkmen, Z. Mecitoǧlu

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

This paper is focused on the theoretical and experimental study of the dynamic behavior of sandwich composite plates with a viscoelastic core subjected to blast load. The sandwich plate has carbon/epoxy face sheets and an aramid honeycomb core. The clamped boundary conditions are considered for all edges of the plate. The sandwich plate is modeled using first order shear deformation theory considering the geometrical non-linearities. The equations of motion are derived by the use of the virtual work principle for the sandwich plate. The viscoelastic behavior is modeled by using the Kelvin-Voigt theory. The equations of motion are reduced into the time domain using Galerkin's method. The non-linear-coupled equation system is solved by Mathematica Software. In the experimental study, the pressurized air in a shock tube is impinged on the sandwich composite plate by rupturing a membrane in front of the shock tube. The strain-time histories obtained from the theoretical analysis are compared with the experimental ones and a good agreement is found.

Original languageEnglish
Title of host publicationStructures Under Shock and Impact XI, SUSI 2010
Pages113-124
Number of pages12
DOIs
Publication statusPublished - 2010
Event11th International Conference on Structures Under Shock and Impact, SUSI 2010 - Tallinn, Estonia
Duration: 28 Jul 201030 Jul 2010

Publication series

NameWIT Transactions on the Built Environment
Volume113
ISSN (Print)1743-3509

Conference

Conference11th International Conference on Structures Under Shock and Impact, SUSI 2010
Country/TerritoryEstonia
CityTallinn
Period28/07/1030/07/10

Keywords

  • blast load
  • Galerkin's method
  • Kelvin-Voigt model

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