界面污染对复合材料层间性能的影响

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (9): 58-62.

界面污染对复合材料层间性能的影响

李占营^1,2, 李金花¹, 鲁晓锋¹

1.中材科技风电叶片股份有限公司,北京100192;
2.清华大学机械系,北京100084

收稿日期:2018-03-23 出版日期:2018-09-28 发布日期:2018-09-28
作者简介:李占营(1983-),男,博士,主要从事复合材料静强度、疲劳有限元分析方面的研究,zhanying.li@qq.com。

EFFECTS OF INTERFACE POLLUTION ON COMPOSITEINTERLAMINAR FRACTURE TOUGHNESS

LI Zhan-ying^1,2, LI Jin-hua¹, LU Xiao-feng¹

1.Sinoma Wind Power Blade Co., Ltd., Beijing 100192, China;
2.Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China

Received:2018-03-23 Online:2018-09-28 Published:2018-09-28

摘要/Abstract

摘要： 采用双悬臂梁试验方法,研究了成型过程中界面污染对玻纤增强复合材料层间性能的影响,并采用基于虚拟裂纹闭合技术的有限元法对层间裂纹扩展过程进行了数值模拟。研究表明:界面污染试验件的层间Ⅰ型断裂韧性低于未污染试验件;界面污染试验件的测试结果发散性大于未污染试验件;虚拟裂纹闭合技术的模拟结果与试验结果吻合良好,可用于预测裂纹扩展载荷。

关键词: 界面污染, 玻纤增强复合材料, Ⅰ型断裂韧性, 虚拟裂纹闭合技术

Abstract: In order to analyze the effect of interface pollution on the composite inter-laminar performance of fiber glass reinforced composites (FRP), the double cantilever beam (DCB) specimens with interface pollution were tested. The crack propagation process of the DCBs was simulated using the finite element method with the virtual crack closure technique (VCCT). It is found that the mode Ⅰ inter-laminar fracture toughness of the specimens with interface pollution is lower than that of the specimens without interface pollution. The variance of the specimens with interface pollution is higher than that of the specimens without interface pollution. The simulation results are in good agreement with the experimental results. The prediction of delamination load using VCCT is feasible.

Key words: interface pollution, fiber glass reinforced composites, mode Ⅰ inter-laminar fracture toughness, vitual crack closure technique

中图分类号:

TB332

李占营, 李金花, 鲁晓锋. 界面污染对复合材料层间性能的影响[J]. 玻璃钢/复合材料, 2018, 0(9): 58-62.

LI Zhan-ying, LI Jin-hua, LU Xiao-feng. EFFECTS OF INTERFACE POLLUTION ON COMPOSITEINTERLAMINAR FRACTURE TOUGHNESS[J]. Fiber Reinforced Plastics/Composites, 2018, 0(9): 58-62.

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