| 三种含能材料力学行为应变率效应的实验研究 |
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| 引用本文： | 吴会民,卢芳云,卢力,宋先邨.三种含能材料力学行为应变率效应的实验研究[J].含能材料,2004,12(4):227-230. |
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| 作者姓名： | 吴会民 卢芳云 卢力 宋先邨 |
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| 作者单位： | 1. 冲击波物理与爆轰物理国防重点实验室,四川,绵阳,621900;国防科技大学理学院应用物理系,湖南,长沙,410073
2. 国防科技大学理学院应用物理系,湖南,长沙,410073 |
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| 基金项目： | 冲击波物理与爆轰物理国家重点实验室基金(51478030201 KJ0103)，国家自然科学基金项目(10276038) |
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| 摘 要： | 利用分离式霍普金森杆和万能材料试验机对复合固体推进剂(CSP)、高聚物粘接炸药(PBX)和B炸药(Comp．B)三种材料进行了高应变率和准静态压缩实验，得到了常温常压下，不同应变率的材料应力一应变曲线，对这三种材料本构行为的应变率效应进行了研究。
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| 关 键 词： | 固体力学 含能材料 高应变率 准静态压缩 本构行为 |
| 文章编号： | 1006-9941(2004)04-0227-04 |
| 收稿时间： | 2003/12/11 0:00:00 |
| 修稿时间： | 2003年12月11 |
Experimental Studies on Strain-rate Effects of Mechanical Behaviors of Energetic Materials |
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| WU Hui-min,LU Fang-yun,LU Li and SONG Xian-cun.Experimental Studies on Strain-rate Effects of Mechanical Behaviors of Energetic Materials[J].Chinese Journal of Energetic Materials,2004,12(4):227-230. |
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| Authors: | WU Hui-min LU Fang-yun LU Li and SONG Xian-cun |
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| Affiliation: | WU Hui-min~ |
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| Abstract: | Compressive behaviors of three energetic materials (CSP,PBX,Comp.B) are investigated experimentally by special designed split Hopkinson pressure bars (SHPB) and quasi-static behaviors by universal testing machine at different strain-rates (ranged from 10~(-4) s~(-1)to 10~2 s~(-1)) respectively. Nonlinear stress-strain curves at different strain rates are obtained and the results show that the mechanical behaviors of the three energetic materials bear obviously rate-dependent and the corresponding failure stress becomes higher with the strain rates rises but, the failure model of the three materials has its own character, i.e.,for Comp.B and PBX it shows brittle splitting and soften for CSP. |
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| Keywords: | solid mechanics energetic material high strain rate quasi-static compression constitutive behavior |
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