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| 采用改进的RDCDMC模拟花岗岩非弹性区爆炸应力波传播 | |
| 引用本文： | 严波,曾新吾,蔡清裕. 采用改进的RDCDMC模拟花岗岩非弹性区爆炸应力波传播[J]. 岩石力学与工程学报, 2009, 28(Z2): 3447-3451 |
| 作者姓名： | 严波 曾新吾 蔡清裕 |
| 作者单位： | (1. 国防科技大学 指挥军官基础教育学院，湖南 长沙 410073；2. 国防科技大学 光电科学与工程学院，湖南 长沙 410073) |
| 基金项目： | 国家自然科学基金资助项目 |
| 摘 要： | 针对爆炸加载下花岗岩表现出不同于混凝土的特点，对RDCDMC岩石本构模型中的状态方程进行改进；考虑塑性体积变形对拉伸状态定义的影响并采用主应力拉伸失效准则。微装药填实爆炸应力波的数值模拟结果验证改进的RDCDMC能表征非弹性区花岗岩的响应特点，能用于应力波传播的模拟。 |
| 关 键 词： | 爆炸力学本构模型应力波数值模拟 |
| 收稿时间： | 2008-05-05 |
| 修稿时间： | 2008-07-21 |
SIMULATION OF PROPAGATION OF EXPLOSIVE STRESS WAVE IN INELASTIC REGION OF GRANITE BY IMPROVED RDCDMC |
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| YAN Bo,ZENG Xinwu,CAI Qingyu. SIMULATION OF PROPAGATION OF EXPLOSIVE STRESS WAVE IN INELASTIC REGION OF GRANITE BY IMPROVED RDCDMC[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(Z2): 3447-3451 | |
| Authors: | YAN Bo ZENG Xinwu CAI Qingyu |
| Affiliation: | (1. College of Basic Education for Officers，National University of Defense Technology，Changsha，Hunan 410073，China；;2. College of Optoelectric Science and Engineering，National University of Defense Technology，Changsha，Hunan 410073，China) |
| Abstract: | Based on the properties of rock different from concrete under blasting loads,the state equation of RDCDMC is improved. The volumetric deformation of plasticity is taken into account in the definition of tension and the tension-failure rule is adopted. The results of numerical simulations for explosion-induced wave by tamped mili-explosive charge indicate that the improved model is capable of describing the response of the inelastic region of granite and available in numerical simulations on propagation of stress wave. |
| Keywords: | blasting mechanics constitutive model stress wave numerical simulation |
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