铺层结构对树脂基复合材料层间剪切强度影响的研究

玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (9): 44-48.

铺层结构对树脂基复合材料层间剪切强度影响的研究

周磊¹, 黎大胜², 侯锐钢^1*

1.华东理工大学材料科学与工程学院,上海200237;
2.华东电力设计院,上海 200237

收稿日期:2016-04-08 出版日期:2016-09-28 发布日期:2016-09-28
通讯作者: 侯锐钢(1960-),男,教授,主要从事复合材料及工业防腐方向研究,rghou@ecust.edu.cn。
作者简介:周磊(1989-),男,硕士研究生,主要从事树脂基复合材料的铺层结构研究。

THE STUDY OF EFFECTS OF STACKING STRUCTURE ON THE INTERLAMINAR SHEAR STRENGTH OF COMPOSITES

ZHOU Lei¹, LI Da-sheng², HOU Rui-gang^1*

1.College of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237,China;
2.East China Electric Power Design Institute, Shanghai 200237, China

Received:2016-04-08 Online:2016-09-28 Published:2016-09-28

摘要/Abstract

摘要： 主要目的在于利用双切口剪切强度试验法验证手糊成型的玻璃钢层合板铺层顺序以及单向布的相对体积含量对层间剪切强度的影响。实验中六种玻璃钢层合板的铺层方式分别为(UF)₅ 、(UF,CSM,UF,CSM,UF)、(CSM,UF,CSM,UF,CSM)、(UF,CSM,CSM,CSM,UF)、(CSM,UF,UF,CSM,CSM)、(CSM)₅。单向布相对体积含量依次为100%、60%、40%、40%、40%、0%。通过实验结论发现,单向布相对体积含量对层合板层间剪切强度影响较大,其中铺层方式为(UF)₅的层合板通过双切口法得到的层间剪切强度高达40.768 MPa,而铺层方式为(CSM)₅的层合板在双切口法中所测得的层间剪切强度却只有15.867 MPa。相对而言,铺层顺序对层合板的层间剪切强度影响相对较小。同时利用数理统计方法“秩和检验法”对大量实验数据进行了离散性分析,结果表明,在同一种铺层方式下,尽管因为不同失效形式导致数据具有较大的离散性,但这些数据仍然可以作为一个整体进行分析。

关键词: 双切口剪切强度试验法, 树脂基复合材料, 层间剪切强度, 秩和检验法

Abstract: An investigation was conducted to study the effects of stacking sequence and unidirectional glass fiber relative volume fraction on the interlaminar shear strengths (ILSS) of laminated composites. The six laminated composites with different stacking sequence follow as: (UF)₅, (UF, CSM, UF, CSM, UF), (CSM, UF, CSM, UF, CSM), (UF, CSM, CSM, CSM, UF), (CSM, UF, UF, CSM, CSM), (CSM)₅, and they were 100%, 60%, 40%, 40%, 40%, 0%, respectively. Experimental results indicated that the unidirectional glass fiber relative volume fraction has a huge effect on ILSS, and the ILSS of (UF)₅ reaches 40.768 MPa and the ILSS of (CSM)₅ only reaches 15.867 MPa. On the contrary, the stacking sequence has little influence on ILSS. Meanwhile, the failure modes were studied with a newly mathematical statistics method-"The Rank-Sum Test", which found that even the ILSS present a larger scatter because of different failure modes in the same type stacking sequence, the sample values can still be analyzed as a entirety.

Key words: double-notch shear test, polymer-matrix composites, ILSS, rank-sum test

中图分类号:

TB332

周磊, 黎大胜, 侯锐钢. 铺层结构对树脂基复合材料层间剪切强度影响的研究[J]. 玻璃钢/复合材料, 2016, 0(9): 44-48.

ZHOU Lei, LI Da-sheng, HOU Rui-gang. THE STUDY OF EFFECTS OF STACKING STRUCTURE ON THE INTERLAMINAR SHEAR STRENGTH OF COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2016, 0(9): 44-48.

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