含褶皱缺陷玻璃纤维增强复合材料层合板拉伸渐进失效分析

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (7): 13-19.

含褶皱缺陷玻璃纤维增强复合材料层合板拉伸渐进失效分析

钱若力¹, 穆晓光¹, 王轩^1*, 李权舟²
本文作者还有丁常方³

1.中国民航大学航空工程学院,天津300300;
2.新疆金风科技股份有限公司,乌鲁木齐830026;
3.天津爱思达航天科技有限公司,天津300304

收稿日期:2019-10-21 出版日期:2020-07-28 发布日期:2020-07-28
通讯作者: 王轩(1982-),男,博士,讲师,研究方向为复合材料结构服役行为与维修,xuwangaero@163.com。
作者简介:钱若力(1963-),男,硕士,副教授,研究方向为复合材料结构服役行为与维修。
基金资助:
国家自然科学基金(11702317);航空科学基金(2019ZF67011)

PROGRESSIVE FAILURE ANALYSIS OF TENSILE STRENGTH OF GLASS FIBER REINFORCED COMPOSITE LAMINATES WITH WRINKLE DEFECTS

QIAN Ruo-li¹, MU Xiao-guang¹, WANG Xuan^1*, LI Quan-zhou²

1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China;
2. Xinjiang Goldwind Technology Co., Ltd., Urumqi 830026, China

Received:2019-10-21 Online:2020-07-28 Published:2020-07-28

摘要/Abstract

摘要： 为研究褶皱缺陷对玻璃纤维增强树脂基复合材料层合板拉伸性能的影响,采用Abaqus有限元软件,结合USDFLD子程序,建立含褶皱缺陷的玻璃纤维增强复合材料层合板渐进失效分析模型。通过数值仿真分析方法对含褶皱缺陷层合板在拉伸载荷作用下的强度退化和渐进失效过程进行研究,分析褶皱高宽比对层合板拉伸性能的影响。结果表明:拉伸强度预测值以及损伤初始位置与文献中实验结果吻合较好,验证了建立的仿真分析模型;随着褶皱高宽比的增加,拉伸失效载荷和强度显著降低;在拉伸载荷作用下,在褶皱变形区域与富树脂区域相接的铺层位置存在应力集中;层合板损伤由富树脂区域逐渐向褶皱变形区域扩展,最终在褶皱变形区域完全失效;受褶皱影响,层合板在拉伸过程中发生弯曲变形,在线弹性阶段,相同载荷条件下变形随着褶皱高宽比的增加而增加。

关键词: 褶皱, 复合材料, 渐进失效分析, 拉伸性能

Abstract: In order to study the effect of wrinkle defects on the tensile properties of glass fiber reinforced resin matrix composite laminates, Abaqus finite element software was combined with USDFLD subroutine to establish a progressive damage analytical model for wrinkle-containing glass fiber reinforced composite laminate. The strength degradation and progressive failure process of wrinkle-containing laminates under tensile load were studied by numerical simulation analysis. The influence of wrinkle aspect ratio on the tensile properties of laminates was analyzed. The results show that the strength prediction value and the initial position of the damage are in good agreement with the experimental results in the literature, verifying simulation analysis model. The tensile failure load and strength decrease significantly with the increase of the wrinkle aspect ratio. Under the application of tensile load, there is stress concentration in the wrinkle deformation layer adjacent to the resin-rich area. The damage of the laminate is gradually extended from the resin-rich area to the wrinkle deformation area, and finally completely fails in the wrinkle deformation area. Affected by wrinkles, the laminates undergo bending deformation during the stretching process. In the linear elastic stage, the deformation increases with the increase of the wrinkle aspect ratio under the same load condition.

Key words: wrinkle, composite, progressive failure analysis, tensile property

中图分类号:

TB332

钱若力, 穆晓光, 王轩, 李权舟. 含褶皱缺陷玻璃纤维增强复合材料层合板拉伸渐进失效分析[J]. 复合材料科学与工程, 2020, 0(7): 13-19.

QIAN Ruo-li, MU Xiao-guang, WANG Xuan, LI Quan-zhou. PROGRESSIVE FAILURE ANALYSIS OF TENSILE STRENGTH OF GLASS FIBER REINFORCED COMPOSITE LAMINATES WITH WRINKLE DEFECTS[J]. Composites Science and Engineering, 2020, 0(7): 13-19.

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