| 树脂基体性能对纤维缠绕复合材料结构强度影响的研究 |
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| 引用本文： | 卢天健,稽醒.树脂基体性能对纤维缠绕复合材料结构强度影响的研究[J].固体力学学报,1991,12(2):102-113. |
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| 作者姓名： | 卢天健 稽醒 |
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| 作者单位： | 西安交通大学
(卢天健)，同济大学
(稽醒)，航天部四院(顾星若) |
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| 摘 要： | 实验发现不同树脂基体配方对纤维缠绕复合材料压力容器的水压爆破强度有高达20～35%的影响。本文认为在容器前、后封头上观察到的分层现象是造成这种强度显著波动的主因,并用有限元分析进行了验证。计算结果表明层间剪切应力是引致分层的主要因素,进一步的实验发现基体的层间剪切强度(interlaminar shear strength,简称ILSS)与容器性能之间有很好的相关性。
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| 关 键 词： | 树脂 基体 复合材料 强度 ILSS |
AN INVESTIGATION ON THE INFLUENCE MECHANISMS OF RESIN MATRICES ON THE STRENGTH OF FILAMENTARY STRUCTURES |
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| Lu Tianjian Ji Xing Gu Xingruo.AN INVESTIGATION ON THE INFLUENCE MECHANISMS OF RESIN MATRICES ON THE STRENGTH OF FILAMENTARY STRUCTURES[J].Acta Mechnica Solida Sinica,1991,12(2):102-113. |
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| Authors: | Lu Tianjian Ji Xing Gu Xingruo |
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| Institution: | Lu Tianjian Ji Xing Gu Xingruo(Xi'an Jiaotong University) (Tongji University) (4TH Research Institute of the Aerospace Ministry) |
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| Abstract: | Experimental results show that the effect of resin properties on the burst strength can be as large as 20-35 percent. Delamination occurring in the head region of the pressure vessel is identified as the main cause leading to the burst strength degradation, with help of the improved FEM analysis. Interlaminar shear stresses are found to be the major cause in prompting the observed delaminations.
Further experiments show that the interrelationship between the interlaminar shear shrength (ILSS) and the pressure vessel properties is existence. |
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| Keywords: | interlaminar shear strength (ILSS) fiber-wound pressure vessels large strain Finite element analysis resin matrix |
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