| 气液喷发动能弹侵彻混凝土靶的数值模拟 |
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| 引用本文： | 章杰,苏少卿,高光发,王肖钧.气液喷发动能弹侵彻混凝土靶的数值模拟[J].防护工程,2013(5):39-45. |
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| 作者姓名： | 章杰 苏少卿 高光发 王肖钧 |
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| 作者单位： | [1]中国科学技术大学近代力学系,合肥230027 [2]安徽建筑工业学院土木工程学院,合肥230022 |
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| 基金项目： | 国家青年基金（11102205）;中国博士后基金（20100480686）;中国博士后基金（2011M501394） |
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| 摘 要： | 采用FEM法与SPH法相结合的一种耦合算法对气液喷发动能弹侵彻混凝土靶开展了数值模拟，阐述了计算的基本思想及计算中的一些关键问题，如喷发物的生成、单元转化、界面附近的耦合计算等。计算结果表明：喷发可以增强侵彻弹的侵彻效果；与不喷发弹相比，喷发弹的侵彻深度和对靶板的破坏程度都有明显的提高。
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| 关 键 词： | 固体力学 SPH FEM 耦合算法 侵彻 气液喷发 |
Numerical simulation of a gas-liquid eruption kinetic energy projectile penetrating concrete |
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| Authors: | ZHANG Jie SU Shaoqing GAO Guangfa WANG Xiaojun |
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| Affiliation: | 1 ( 1. Department of Modem Mechanics, University of Science and Technology of China, Hefei 230027, China; 2. School of Civil Engineering, Anhui University of Architecture, Hefei 230022, China) |
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| Abstract: | The penetration behaviour of a new kind of projectile with gas-liquid eruption into a concrete target is studied numerically by a coupling FEM-SPH method. The basic concept of the numerical method is described and several key problems, such as ejecta generation, conversion of elements into SPH particles, and the interface between elements and particles are discussed. The results show that compared with the conventional projectiles, the penetration depth of the new projectile is increased effectively and the target is damaged much strongly. |
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| Keywords: | solid mechanics SPH FEM coupling algorithm penetration gas-liquid eruption |
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