A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT

Applied Mathematics and Mechanics (English Edition) ›› 2001, Vol. 22 ›› Issue (9): 1090-1095.

A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT

刘占芳, 姚国文, 詹先义

Department of Engineering Mechanics, Chongqing University, Chongqing 400044, P R China

收稿日期:2000-09-25 修回日期:2001-04-08 出版日期:2001-09-18 发布日期:2001-09-18
基金资助:
the Defense Science Technology Key Lab Foundation of China(99JS75.22JN2001)

A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT

LIU Zhan-fang, YAO Guo-wen, ZHAN Xian-yi

Department of Engineering Mechanics, Chongqing University, Chongqing 400044, P R China

Received:2000-09-25 Revised:2001-04-08 Online:2001-09-18 Published:2001-09-18
Supported by:
the Defense Science Technology Key Lab Foundation of China(99JS75.22JN2001)

摘要/Abstract

摘要： The failure wave phenomenon was interpreted in glass media under the high velocity impact with the stress levels below the Hugoniot elastic limit. In view of the plate impact experimental observations a damage-accumulating model predominated by the deviatoric stress impulse was proposed while Heaviside function was adopted in the damage-accumulating model to describe the failure delay in the interior of materials. Features of the failure layer and propagation mechanism as well as their dynamic characteristics were further presented. The reduction in failure wave propagation speed is pointed out as the reflected rarefaction waves reflect again from the failure layer boundary.

Abstract: The failure wave phenomenon was interpreted in glass media under the high velocity impact with the stress levels below the Hugoniot elastic limit. In view of the plate impact experimental observations a damage-accumulating model predominated by the deviatoric stress impulse was proposed while Heaviside function was adopted in the damage-accumulating model to describe the failure delay in the interior of materials. Features of the failure layer and propagation mechanism as well as their dynamic characteristics were further presented. The reduction in failure wave propagation speed is pointed out as the reflected rarefaction waves reflect again from the failure layer boundary.

中图分类号:

刘占芳;姚国文;詹先义. A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT[J]. Applied Mathematics and Mechanics (English Edition), 2001, 22(9): 1090-1095.

LIU Zhan-fang;YAO Guo-wen;ZHAN Xian-yi. A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT[J]. Applied Mathematics and Mechanics (English Edition), 2001, 22(9): 1090-1095.

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A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT

A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT

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