| A DAMAGE ACCUMULATING MODELING OF FAILURE WAVES IN GLASS UNDER HIGH VELOCITY IMPACT |
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| 作者姓名： | 刘占芳 姚国文 詹先义 |
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| 作者单位： | LIU Zhan-fang，YAO Guo_wen，ZHAN Xian_yi (Department of Engineering Mechanics，Chongqing University，Chongqing 400044，P R China) (Communicated by ZHANG Ru_qing) |
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| 基金项目： | theDefenseScienceTechnologyKeyLabFoundationofChina ( 99JS75.2 2JN2 0 0 1 ) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｆａｉｌｕｒｅｗａｖｅｉｓａｓｐｅｃｉｆｉｃｆａｉｌｕｒｅｐｈｅｎｏｍｅｎｏｎｏｃｃｕｒｒｉｎｇｉｎｇｌａｓｓｍｅｄｉａｕｎｄｅｒｃｒｉｔｉｃａｌｉｍｐａｃｔｌｏａｄｉｎｇｗｉｔｈｈｉｇｈｓｔｒａｉｎｒａｔｅ (ｖ≥ 1 2ｋｍ/ｓ, ε≥ 1 0 5 /ｓ) .ＩｔｗａｓｆｉｒｓｔｏｂｓｅｒｖｅｄｉｎＫ1 9ｇｌａｓｓｐｌａｎａｒｉｍｐａｃｔｔｅｓｔｓｉｎ 1 991ｂｙＲａｓｏｒｅｎｏｖ1]ｔｈａｔｔｈｅｒｅｅｘｉｓｔｓａｆａｉｌｕｒｅｌａｙｅｒｐｒｏｐａｇａｔｉｎｇａｔａｌｏｗｅｒｓｐｅ…
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| 收稿时间： | 25 September 2000 |
A Damage Accumulating Modeling of Failure Waves in Glass under High Velocity Impact |
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| Zhan-fang Liu,Guo-wen Yao,Xian-yi Zhan.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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| Authors: | Zhan-fang Liu Guo-wen Yao Xian-yi Zhan |
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| Institution: | Department of Engineering Mechanics, Chongqing University, Chongqing 400044, P R China |
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| 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. |
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| Keywords: | high velocity impact failure wave damage_accumulating model |
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