| PBX炸药粘弹性损伤本构关系研究 |
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| 引用本文： | 周栋,黄风雷,姚惠生.PBX炸药粘弹性损伤本构关系研究[J].北京理工大学学报,2007,27(11):945-947. |
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| 作者姓名： | 周栋 黄风雷 姚惠生 |
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| 作者单位： | 北京理工大学,爆炸科学与技术国家重点实验室,北京,100081;北京理工大学,爆炸科学与技术国家重点实验室,北京,100081;北京理工大学,爆炸科学与技术国家重点实验室,北京,100081 |
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| 摘 要： | 应用广义能量释放率及动态断裂理论,结合粘弹性效应建立了PBX炸药的统计细观损伤本构模型,将该模型嵌入到Ls-dyna有限元程序中对平面撞击实验进行了数值计算.通过与实验结果比较表明,建立的细观损伤本构模型能较好地描述PBX炸药在冲击作用下的动态损伤力学行为.
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| 关 键 词： | PBX炸药 统计细观损伤本构模型 Ls-dyna |
| 文章编号： | 1001-0645（2007）11-0945-04 |
| 收稿时间： | 7/5/2007 12:00:00 AM |
| 修稿时间： | 2007-07-05 |
Study on the Visco-Elastic Constitutive Model of PBX |
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| ZHOU Dong,HUANG Feng-lei and YAO Hui-sheng.Study on the Visco-Elastic Constitutive Model of PBX[J].Journal of Beijing Institute of Technology(Natural Science Edition),2007,27(11):945-947. |
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| Authors: | ZHOU Dong HUANG Feng-lei and YAO Hui-sheng |
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| Affiliation: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A statistical visco-elastic meso-damage constitutive model of PBX was established using the generalized energy release rate and the dynamical fracture mechanics is combination with the visco-elastic effect,adding the constitutive model into Ls-dyna algorithm and simulating the plane impact experiment.The simulated results showed that the constitutive model established can well present the dynamical damage mechanical response of PBX under the impact load. |
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| Keywords: | polymer bonded explosives(PBX) statistical meso-damage constitutive model Ls-dyna |
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