| 基于纤维随机分布的单向复合材料拉伸破坏过程模拟 |
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| 引用本文： | 范寅,陈秀华,汪海.基于纤维随机分布的单向复合材料拉伸破坏过程模拟[J].计算力学学报,2013,30(3):412-417. |
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| 作者姓名： | 范寅 陈秀华 汪海 |
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| 作者单位： | 上海交通大学航空航天学院,上海,200240 |
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| 摘 要： | 单向复合材料的极限拉伸强度受纤维强度变化和纤维随机分布的影响。本文提出了一种合理的纤维随机分布假设,并以此建立了剪滞数值模型。利用蒙特卡罗模拟方法结合现有模型分析了单向复合材料的拉伸失效过程,得到极限拉伸强度。与文献模型相比较的结果表明,本文的模型结果更理想。
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| 关 键 词： | 剪滞方法 纤维随机分布 蒙特卡罗模拟 |
| 收稿时间： | 3/2/2012 12:00:00 AM |
| 修稿时间： | 5/7/2012 12:00:00 AM |
The simulation of damage process for uni-directional composite materials based on fibers' stochastic distribution |
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| FAN Yin,CHEN Xiu-hua and WANG Hai.The simulation of damage process for uni-directional composite materials based on fibers' stochastic distribution[J].Chinese Journal of Computational Mechanics,2013,30(3):412-417. |
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| Authors: | FAN Yin CHEN Xiu-hua and WANG Hai |
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| Institution: | School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China;School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China;School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | Ultimate Tensile Strength (UTS) of composite materials is influenced by the variation in fiber strength and randomness of fibers' distribution.A shear-lag numerical model,which depends on a reasonable hypothesis of fiber distribution,is built in this paper.A Monte-Carlo simulation using current model is used to analyze the failure process of uni-directional composites and obtain the UTS.Compared with model from literature,current model obtains much more perfect results. |
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| Keywords: | shear-lag method fibers' stochastic distribution Monte-Carlo simulation |
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