| 整体加筋壁板裂纹扩展轨迹模拟及控制分析 |
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| 引用本文： | 马野,许希武,宁晋建.整体加筋壁板裂纹扩展轨迹模拟及控制分析[J].固体力学学报,2009,30(3). |
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| 作者姓名： | 马野 许希武 宁晋建 |
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| 作者单位： | 1. 南京航空航天大学结构强度研究所,南京,210016
2. 沈阳飞机设计研究所结构强度部,沈阳,110035 |
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| 摘 要： | 应用有限元方法并结合裂纹扩展方向判据分析模拟了飞机整体加筋壁板裂纹的扩展轨迹,与实验结果对比证明此方法的有效性;并通过壳单元模型和粘聚区渐进损伤模型详细讨论了影响整体加筋壁板裂纹扩展的筋条参数,研究了壁板筋条对裂纹止裂的控制,并对不同参数下裂纹的应力强度因子和扩展情况作对比分析.文章所述方法和结论对于飞机整体加筋壁板的损伤容限设计具有指导意义.
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| 关 键 词： | 整体加筋板 裂纹扩展 应力强度因子 粘聚区 渐进损伤 |
AN ANALYSIS OF CRACK GROWTH SIMULATION AND CRACK ARREST IN INTEGRALLY STIFFENED PANEL |
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| Ye Ma,Xiwu Xu,Jinjian Ning.AN ANALYSIS OF CRACK GROWTH SIMULATION AND CRACK ARREST IN INTEGRALLY STIFFENED PANEL[J].Acta Mechnica Solida Sinica,2009,30(3). |
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| Authors: | Ye Ma Xiwu Xu Jinjian Ning |
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| Institution: | 1 Research Institute of Structure Strength;Nanjing University of Aeronautics and Astronautics;Nanjing;210016;2 Structure Strength Department;Shenyang Aircraft Design and Research Institute;Shenyang;110035 |
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| Abstract: | With the finite element code ABAQUS and the crack propagation direction criterion,crack growth paths in integrally stiffened panels are simulated and the validity of this method is testified by contrast with experiment;Then some parameters that influence crack propagation in integrally stiffened pa-nels are particularly discussed by shell model and cohesive zone model.The effect of stringer to crack arrest is analyzed in detail.The stress intensity factors and crack propagation distances under different str... |
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| Keywords: | FEM ABAQUS |
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