含有孔洞缺陷的复合材料粘结层的失效表征

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (9): 41-45.

含有孔洞缺陷的复合材料粘结层的失效表征

唐哲韬, 赵帅, 刘勇, 许杨剑^*

浙江工业大学机械工程学院,杭州310014

收稿日期:2018-02-28 出版日期:2018-09-28 发布日期:2018-09-28
通讯作者: 许杨剑(1979-),男,博士,副教授,主要从事有限元仿真技术、微电子封装技术、结构完整性(疲劳、断裂)、计算固体力学等方面的研究,xuyangjian571@163.com。
作者简介:唐哲韬(1992-),男,硕士研究生,主要从事微电子封装、界面失效方面的研究。

CHARACTERIZATION OF FAILURE AT THE COMPOSITE ADHESIVE LAYER WITH DEFECTS

TANG Zhe-tao, ZHAO Shuai, LIU Yong, XU Yang-jian^*

School of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China

Received:2018-02-28 Online:2018-09-28 Published:2018-09-28

摘要/Abstract

摘要： 复合材料的层间开裂是复合材料破坏失效的主要形式。复合材料中粘结层的粘结强度对材料整体强度具有直接影响,而实际的工业生产中粘结层会不可避免地存在孔洞缺陷。通过有限元仿真、双悬臂梁(DCB)拉伸实验及内聚力参数反演辨识等工作对含有孔洞的粘结界面的失效表征进行了研究。对比了双线性内聚力模型和多线段插值型内聚力模型在当前问题的应用情况。其结果表明,多线段插值型内聚力模型的模拟结果更好,更适用于复合材料层间开裂的失效预测。

关键词: 层间开裂, 孔洞缺陷, 反演分析, 多线段插值型内聚力模型

Abstract: Delamination is the main form of failure of composite materials. The bonding strength of the adhesive layers in composite materials has a direct impact on the overall strength of materials or structures, while it will inevitably produce holes or defects in the actual adhesive layer during manufacture of composite materials. In our work, fracture test of double-cantilever beam (DCB) specimen, its finite element simulation by using cohesive zone model and inverse identification of cohesive parameters were carried out. In addition, the bilinear cohesive zone model was compared with the multi-segment interpolation cohesive zone model in terms of the fracture simulation of adhesive layer. The simulation results show that the multi-segment interpolation cohesive zone model has achieved a better result, which is more suitable for predicting the delamination of composite materials.

Key words: delamination, holes, inverse analysis, multi-segment interpolation cohesive zone model

中图分类号:

TB332

唐哲韬, 赵帅, 刘勇, 许杨剑. 含有孔洞缺陷的复合材料粘结层的失效表征[J]. 玻璃钢/复合材料, 2018, 0(9): 41-45.

TANG Zhe-tao, ZHAO Shuai, LIU Yong, XU Yang-jian. CHARACTERIZATION OF FAILURE AT THE COMPOSITE ADHESIVE LAYER WITH DEFECTS[J]. Fiber Reinforced Plastics/Composites, 2018, 0(9): 41-45.

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