| 冲击波作用下单层钢化玻璃应变阈值的数值模拟 |
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| 引用本文： | 刘俊,田宙,钟巍.冲击波作用下单层钢化玻璃应变阈值的数值模拟[J].爆炸与冲击,2018,38(3):671-676. |
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| 作者姓名： | 刘俊 田宙 钟巍 |
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| 作者单位： | 湘潭大学材料科学与工程学院,湖南湘潭,411100;西北核技术研究所,陕西西安,710024;西北核技术研究所,陕西西安710024;北京大学数学科学学院,北京100871 |
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| 摘 要： | 借助ANSYS/LS-DYNA程序，采用Lagrange方法描述钢化玻璃，引入侵蚀算法来模拟钢化玻璃的破坏，对爆炸冲击波载荷进行合理的简化，选取最大伸长线应变理论作为单层钢化玻璃破坏准则。利用建立的模型对爆炸冲击波对单层钢化玻璃的作用过程进行了数值模拟。通过反复调试和大量计算得到单层钢化玻璃破坏的应变阈值为0.002 2，并用场地实验结果对数值结果进行了验证，证明此结果是合理的。
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| 关 键 词： | 钢化玻璃 应变阈值 Lagrange方法 侵蚀算法 |
| 收稿时间： | 2016-10-09 |
Numerical simulation of strain threshold of monolithic tempered glass under blast wave |
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| LIU Jun,TIAN Zhou,ZHONG Wei.Numerical simulation of strain threshold of monolithic tempered glass under blast wave[J].Explosion and Shock Waves,2018,38(3):671-676. |
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| Authors: | LIU Jun TIAN Zhou ZHONG Wei |
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| Institution: | 1.School of Materials Science and Engineering, University of Xiangtan, Xiangtan 411100, Hunan, China2.Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China3.School of Mathematical Sciences, Peking University, Beijing 100871, China |
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| Abstract: | In this study,based on ANSYS/LS-DYNA,we described the tempered glass using the Lagrange method,reasonably simplified the blast wave load by simulating the failure of the tempered glass using the erosion algorithm,with the maximum elongation line strain theory used as the failure criterion for the monolithic tempered glass.We then simulated the monolithic tempered glass under the blast wave using model thus established.Through a large number of debugging and calculations,we identified the strain threshold of the failure of the monolithic tempered glass as 0.0022.The numerical results were verified by the experimental results and proved as reasonable. |
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