| 冲击载荷作用下韧－脆复合板结构中脆性材料破碎的实验和数值模拟 |
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| 引用本文： | 方竞,齐佳,熊春阳.冲击载荷作用下韧－脆复合板结构中脆性材料破碎的实验和数值模拟[J].实验力学,1996,11(4). |
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| 作者姓名： | 方竞 齐佳 熊春阳 |
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| 作者单位： | 北京大学 |
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| 基金项目： | 国家自然科学基金,国家教委跨世纪人才计划基金 |
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| 摘 要： | 本文以冲击实验和有限元分析研究了韧－脆复合材料结构中脆性材料的破碎问题。材料的破碎图具有一定的分形特征，其分形维数随冲击载荷的增大而增加。基于实验结果的非线性动力有限元分析对这类破碎图样的演化给出了动态过程模拟
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| 关 键 词： | 材料破碎，冲击失效，分形图样演化 |
Experimental Study and Numerical Simulationof Fragmentation of Brittle Material under Impact Loading |
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| Fang Jing,Qi Jia,Xiong Chunyang.Experimental Study and Numerical Simulationof Fragmentation of Brittle Material under Impact Loading[J].Journal of Experimental Mechanics,1996,11(4). |
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| Authors: | Fang Jing Qi Jia Xiong Chunyang |
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| Institution: | Peking University |
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| Abstract: | The impact tests and the finite element method are used to investigate the fragmentation of brittle material in a composite structure consisting of PMMA and glass plates.The fragmental pattern of the brittle glass shows to be fractal,whose fractal dimension rises with the increase of the magnitude of the concentrated impact load acted at the center of the composite plate.Based on the experimental results,a numerical computation is performed to simulate the dynamic process of the fragmental pattern formation. |
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| Keywords: | material fragmentation impact failure fractal pattern formation |
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