| 加筋板总体失稳分析的等效层合板模型 |
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| 引用本文： | 赵群,金海波,丁运亮,迟鹏.加筋板总体失稳分析的等效层合板模型[J].复合材料学报,2009,26(3):195-201. |
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| 作者姓名： | 赵群 金海波 丁运亮 迟鹏 |
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| 作者单位： | 南京航空航天大学,飞行器先进设计技术国防重点学科实验室,南京,210016 |
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| 摘 要： | 基于等效刚度的思想，通过设定层合板的属性参数模拟了加筋板结构的力学特性，提出了一种适用于不同截面形状以及布局形式的加筋板总体失稳分析的等效层合板建模方法。利用PATRAN/NASTRAN 软件比较了反映实际壁板形状的高精度有限元模型与对应的赋有层合板属性的等效刚度简化模型。对于工程中常见形状的加强筋以及不同布局形式的壁板，2种模型的一阶线性失稳因子基本一致，从而验证了将等效层合板模型用于加筋壁板结构的稳定性分析可以满足工程精度要求，并显著提高了计算效率。
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| 关 键 词： | 等效刚度 加筋板 复合材料 层合板 屈曲 有限元 |
| 收稿时间： | 2008-06-23 |
| 修稿时间： | 2008-10-30 |
Equivalent laminates model for stiffened panel global buckling analysis |
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| ZHAO Qun,JIN Haibo,DING Yunliang,CHI Peng.Equivalent laminates model for stiffened panel global buckling analysis[J].Acta Materiae Compositae Sinica,2009,26(3):195-201. |
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| Authors: | ZHAO Qun JIN Haibo DING Yunliang CHI Peng |
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| Affiliation: | ( Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics&;Astronautics, Nanjing 210016, China) |
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| Abstract: | Based on the idea of equivalent stiffness,the stiffened panels' mechanical characteristics were simulated by setting the property parameters of laminates.An equivalent laminate modeling method was introduced for the global buckling analysis of stiffened panels with different sectional shapes and stringer distribution forms.The high accuracy model that describes a stiffened panel's real shape and its simplified equivalent stiffness model with a laminate property were compared using PATRAN/NASTRAN software.Fo... |
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| Keywords: | equivalent stiffness stiffened panel composites laminates buckle finite element |
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