Compressive properties for alumina subjected to shock loading

Huilan Ren*, Jianguo Ning

*Corresponding author for this work

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

Abstract

Alumina have been investigated for its distinguished characteristics to be widely used in armor application. One-stage light gas gun were utilized to study the dynamic mechanical properties of alumina subjected to shock loading. Manganin gauges were employed to obtain the stress-time histories at the different Lagrange locations in alumina target. The Hugoniot curves of stress and pressure versus specific volume were fitted based on the experimental data. The compressive behaviors for AD90 alumina are shown to be from elastic to "plastic" below 12GPa and under more higher pressure it will be transferred to similar-fluid state. Adopting LS-DYNA finite element code the dynamic failure of alumina ceramic armor are simulated. It is concluded that nucleation and growth of great number of radial and axial cracks and lateral cracks play dominant role in fractured ceramic target under impact loading.

Original languageEnglish
Title of host publicationAdvances in Fracture and Materials Behavior - Selected, peer reviewed papers of the Seventh International Conference on Fracture and Strength of Solids (FEOFS2007)
PublisherTrans Tech Publications Ltd.
Pages345-350
Number of pages6
ISBN (Print)0878493999, 9780878493999
DOIs
Publication statusPublished - 2008
Event7th International Conference on Fracture and Strength of Solids, FEOFS 2007 - Urumqi, China
Duration: 27 Aug 200729 Aug 2007

Publication series

NameAdvanced Materials Research
Volume33-37 PART 1
ISSN (Print)1022-6680

Conference

Conference7th International Conference on Fracture and Strength of Solids, FEOFS 2007
Country/TerritoryChina
CityUrumqi
Period27/08/0729/08/07

Keywords

  • Hugoniot curve
  • Mechanical behaviors
  • Plate impact experiment

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