| 梯度压力分布活性材料准静态压缩特性 |
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| 引用本文： | 耿宝群,郑元枫,肖艳文,余庆波,葛超,郭焕果,王海福.梯度压力分布活性材料准静态压缩特性[J].北京理工大学学报,2021,41(4):364-371. |
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| 作者姓名： | 耿宝群 郑元枫 肖艳文 余庆波 葛超 郭焕果 王海福 |
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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;陆军装备部装备项目管理中心,北京 100072 |
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| 基金项目： | 国家自然科学基金资助项目（11202030） |
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| 摘 要： | 采用准静态压缩试验方法研究了梯度压力分布对活性材料力学特性的影响.实验结果表明，梯度压力分布活性材料失效强度较均一活性材料有提高，同时逆梯度压力分布活性材料具有最显著的功能梯度特性.梯度压力从失效行为角度分析，充分压缩的逆梯度压力分布活性材料呈蘑菇状渐变失效，出现多个失效应力峰值.从材料密度分布出发，揭示了活性材料多应力峰值压缩失效梯度压力机理.
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| 关 键 词： | 功能梯度材料 梯度压力分布 活性材料 准静态压缩 失效行为 |
| 收稿时间： | 2020/4/11 0:00:00 |
Quasi-Static Compression Properties of Reactive Materials with Molding Pressure Gradient Distributions |
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| GENG Baoqun,ZHENG Yuanfeng,XIAO Yanwen,YU Qingbo,GE Chao,GUO Huanguo,WANG Haifu.Quasi-Static Compression Properties of Reactive Materials with Molding Pressure Gradient Distributions[J].Journal of Beijing Institute of Technology(Natural Science Edition),2021,41(4):364-371. |
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| Authors: | GENG Baoqun ZHENG Yuanfeng XIAO Yanwen YU Qingbo GE Chao GUO Huanguo WANG Haifu |
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| Affiliation: | 1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2. Equipment Project Management Center, Army Equipment Department, Beijing 100072, China |
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| Abstract: | Using quasi-static compression tests, the influence of molding pressure gradient distribution on mechanical properties of reactive materials were studied. Experiment results show that failure strength of reactive materials with molding pressure gradient distributions is improved compared with that of uniform reactive materials. Negative gradient molding pressure reactive materials showed apparent functionally graded properties. Fully compressed negative molding pressure gradient reactive materials showed mushroom-like failure gradually from the failure behavior point of view, and showed multiple failure strength peaks. The multiple failure strength peak mechanisms are revealed based on the density distribution theories. |
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| Keywords: | functionally graded material molding pressure gradient distribution reactive material quasi-static compression failure behavior |
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