| 基于近场动力学理论的层压板损伤分析方法 |
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| 引用本文： | 胡祎乐,余音,汪海.基于近场动力学理论的层压板损伤分析方法[J].力学学报,2013,45(4):624. |
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| 作者姓名： | 胡祎乐 余音 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： | 提出了一种基于近场动力学理论 的纤维增强复合材料层压板的渐进损伤分析方法.在弹性力学和复合材料力学的基础上, 推导了适用于近场动力学建模的微模量和临界伸长率等基本参量, 结合经典层压板理论中的偏轴模量, 构建了适用于各向异性材料的对点力函数, 可分析3种形式的损伤:纤维断裂, 基体开裂和分层破坏.分析了含圆孔层压板在拉伸载荷作用下的破坏过程, 预测结果与试验结果吻合良好.
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| 关 键 词： | 近场动力学理论 建模 渐进损伤分析 纤维增强复合材料层压板 偏轴模量 |
| 收稿时间： | 2012-12-19 |
| 修稿时间： | 2013-02-01 |
DAMAGE ANALYSIS METHOD FOR LAMINATES BASED ON PERIDYNAMIC THEORY |
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| Hu Yile,Yu Yin,Wang Hai.DAMAGE ANALYSIS METHOD FOR LAMINATES BASED ON PERIDYNAMIC THEORY[J].chinese journal of theoretical and applied mechanics,2013,45(4):624. |
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| Authors: | Hu Yile Yu Yin Wang Hai |
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| Institution: | School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | A new method for progressive damage analysis of fiber-reinforced composite laminates based on peridynamic theory was proposed. The basic parameters, micromodulus and critical stretch for peridynamic modeling were deduced based on elasticity and composite mechanics. The concept of off-axial modulus was introduced into the bonds' definition to establish a pairwise force function for anisotropic materials. This approach was able to analyze three types of damages: fiber fracture, matrix fracture and delaminations. Based on this approach, laminate with an open hole was subjected to a tensile load to simulate the progressive damage process. The predictions showed good agreements with experimental results. |
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| Keywords: | peridynamic theory modeling progressive damage analysis fiber-reinforced composite laminates off-axial modulus |
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