| 复合材料层合板单排多钉双剪联接接头强度分析 |
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| 引用本文： | 崔海涛,温卫东.复合材料层合板单排多钉双剪联接接头强度分析[J].航空动力学报,2002,17(5):623-634. |
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| 作者姓名： | 崔海涛 温卫东 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,江苏,南京,210016 |
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| 摘 要： | 双剪联接接头是复合材料结构连接设计的主要环节。针对T300/KH304复合材料层合板的单排多钉双剪联接接头,考虑到孔间距离对接头强度的影响,用三维有限元模型对接头的静强度进行数值分析。以应力分析为基础,采用Yamada-Sun准则预测了该层合板结构双剪联接接头的破坏载荷。试验结果表明,该接头的破坏模式主要呈现为挤压破坏,并伴随有净拉伸和剪切破坏模式;接头的位移——载荷曲线近似为直线;Yamada-Sun准则可以较好地预测该结构的破坏载荷;所预测的接头的破坏载荷及破坏模式,试验结果与数值分析结果比较一致。
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| 关 键 词： | 复合材料层合板 双剪联接接头 强度分析 |
| 文章编号： | 1000-8055(2002)05-0623-06 |
| 收稿时间： | 2001/11/14 0:00:00 |
| 修稿时间： | 2001年11月14 |
Strength Analysis for Multiple Double-Lapped Joints in CFRP Laminates |
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| CUI Hai tao and WEN Wei dong.Strength Analysis for Multiple Double-Lapped Joints in CFRP Laminates[J].Journal of Aerospace Power,2002,17(5):623-634. |
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| Authors: | CUI Hai tao and WEN Wei dong |
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| Institution: | Nanjing University of Aeronautics and Astronautics,Nanjing210016,China;Nanjing University of Aeronautics and Astronautics,Nanjing210016,China |
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| Abstract: | Double lapped bolted joints are the main structure in design of composite laminates.The effect of the distance between holes is taken into consideration,strength of multiple double lapped joints of T300/KH304 CFRP is analyzed by three dimensional finite element model.Based on the result of stress analysis,Yamada Sun criterion is used to predict the ultimate strength of the joints.Experimental results show that bearing failure is the main failure type,together with the net tension and shear out types,the curve of displacement load approximate a straight line,and Yamada Sun criterion is suitable for prediction of the ultimate strength.Compared with the predictions,a good agreement between experimental and numerical predictions is obtained. |
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| Keywords: | CFRP laminates double-lapped joints strength analysis |
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