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| 纤维增强复合材料拉伸破坏过程的Monte-Carlo模拟 | |
| 引用本文： | 王放,张俊乾,吕世金.纤维增强复合材料拉伸破坏过程的Monte-Carlo模拟[J].船舶力学,2009,13(2). |
| 作者姓名： | 王放 张俊乾 吕世金 |
| 作者单位： | 1. 西南大学材料科学与工程学院,重庆,400715 2. 上海大学上海市应用数学和力学研究所 3. 中国船舶科学研究中心,江苏无锡,214082 |
| 基金项目： | 西南大学博士基金，国家自然科学基金 |
| 摘 要： | 基于剪切滞后模型,采用影响函数叠加方法,得到复合材料在多纤维断裂下的应力场,包含了基体和界面塑性变形的影响.考虑纤维强度的统计特性,结合Monte-Carlo方法模拟丫复合材料在拉伸载荷作用下的累计破坏过程.结果表明:复合材料拉伸强度的尺寸效应与纤维强度分布的统计性质以及微观损伤诱发的应力重分配有关.文中的研究为进一步发展基于破坏机理分析的复合材料在热/机械载荷作用下的疲劳寿命预测理论奠定了基础. |
| 关 键 词： | 纤维增强复合材料 多重损伤 Monte-Carlo模拟 拉伸强度 |
Failure analysis of fiber-reinforced composites under tensile loading using Monte-Carlo simulation |
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| WANG Fang,ZHANG Jun-qian,L Shi-jin.Failure analysis of fiber-reinforced composites under tensile loading using Monte-Carlo simulation[J].Journal of Ship Mechanics,2009,13(2). | |
| Authors: | WANG Fang ZHANG Jun-qian L Shi-jin |
| Affiliation: | 1 School of Materials Science and Engineering;Southwest University;Chongqing 400715;China;2 Shanghai Institute of Applied Mathematics and Mechanics;Shanghai University;Shanghai 200072;3 China Ship Scientific Research Center;Wuxi 214082;China |
| Abstract: | A micromechanically analytical model using an influence function superimposition technique and the shear-lag model is developed to derive stress profiles for any configuration of breaks in continuous fiber-reinforced metal matrix composites(MMCf),including the effect of local plasticity of matrix properties and interface characters between fiber and matrix.Several hundred Monte-Carlo simulations considering the variations of fiber strength were executed to simulate failure process of the composites.The resu... |
| Keywords: | fiber-reinforced composite multiple damages Monte-Carlo simulation tensile strength |
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