Compressive properties for alumina subjected to shock loading

Huilan Ren*, Jianguo Ning

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

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.

源语言英语
主期刊名Advances in Fracture and Materials Behavior - Selected, peer reviewed papers of the Seventh International Conference on Fracture and Strength of Solids (FEOFS2007)
出版商Trans Tech Publications Ltd.
345-350
页数6
ISBN(印刷版)0878493999, 9780878493999
DOI
出版状态已出版 - 2008
活动7th International Conference on Fracture and Strength of Solids, FEOFS 2007 - Urumqi, 中国
期限: 27 8月 200729 8月 2007

出版系列

姓名Advanced Materials Research
33-37 PART 1
ISSN(印刷版)1022-6680

会议

会议7th International Conference on Fracture and Strength of Solids, FEOFS 2007
国家/地区中国
Urumqi
时期27/08/0729/08/07

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