| RDX基PBX的本构行为与应变历史、应变率效应（英） |
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| 引用本文： | 唐明峰,庞海燕,蓝林钢,温茂萍,李明.RDX基PBX的本构行为与应变历史、应变率效应（英）[J].含能材料,2016,24(9):832-837. |
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| 作者姓名： | 唐明峰 庞海燕 蓝林钢 温茂萍 李明 |
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| 作者单位： | 中国工程物理研究院化工材料研究所,四川绵阳,621999 |
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| 基金项目： | The National Natural Science Foundations of China (11372292); The Defense Industrial Technology Development Program (B1520132004); The Science and Technology Fund of CAEP (2013A0203006) Biography: TANG Ming-feng(1988-), male, intern researcher, Research field: mechanical properties of energetic materials. e-mail: myfengtong@sina.com |
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| 摘 要： | 高聚物粘结炸药(PBX)作为一种典型的颗粒填充弹性材料,其力学性能与应变率、应变历史密切相关.利用材料试验机获得了浇注PBX在准静态应变率范围内(10-4～10-2/s)的循环加载、卸载应力-应变曲线.用Dorfmann & Ogden模型分析了PBX的本构行为.结果表明,该PBX具有应变率效应,循环加载过程中存在应力软化和滞回现象,卸载过程中存在残余应变现象.材料损伤可用滞回环和残余应变的大小来表征,损伤程度主要受最大加载应变控制.在Dorfmann&Ogden模型中,只有剪切模量(μ)受加载速率影响.10-4,10-3,10-2/s下的μ值分别为43.94,56.92,71.93 MPa.该模型可以较好地描述材料的应力软化和残余应变行为.预测结果与试验数据吻合良好.
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| 关 键 词： | 高聚物粘结炸药(PBX) 应变历史 应变率效应 本构行为 |
| 收稿时间： | 2015/11/11 0:00:00 |
| 修稿时间： | 2015/12/23 0:00:00 |
Constitutive Behavior of RDX-based PBX with Loading-history and Loading-rate Effects |
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| TANG Ming-feng,PANG Hai-yan,LAN Lin-gang,WEN Mao-ping and LI Ming.Constitutive Behavior of RDX-based PBX with Loading-history and Loading-rate Effects[J].Chinese Journal of Energetic Materials,2016,24(9):832-837. |
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| Authors: | TANG Ming-feng PANG Hai-yan LAN Lin-gang WEN Mao-ping and LI Ming |
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| Affiliation: | Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621999, China,Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621999, China,Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621999, China,Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621999, China and Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621999, China |
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| Abstract: | |
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| Keywords: | polymer bonded explosive (PBX) loading history strain rate effect constitutive behavior |
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