Parameters prediction of cohesive zone model for simulating composite/adhesive delamination in hygrothermal environments

被引：27
|
作者：
Cheng, Xiaoquan [1 ]
Zhang, Qian [2 ]
Zhang, Jie [1 ]
Guo, Xin [1 ]
Niu, Zhongrong [2 ]
机构：
[1] Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China
[2] Hefei Univ Technol, Hefei 230009, Anhui, Peoples R China
来源：
COMPOSITES PART B-ENGINEERING | 2019年 / 166卷
基金：
中国国家自然科学基金;
关键词：
Cohesive zone model; Composite/adhesive bonded joint; Fracture energy release rate; Interface strength; Hygrothermal environments; BONDED JOINTS; ADHESIVE;
D O I：
10.1016/j.compositesb.2019.03.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, moisture parameters of adhesive SY-14M-III and composite T800/AC531 were firstly measured, which were used for the following moisture diffusion investigations. Then, double cantilever beam (DCB) tests and end notched flexure (ENF) tests were conducted in four environments, and relevant progressive damage models considering cohesive zone models were established. The results show that the models are efficient by comparison of experimental and numerical results, and eight pairs of cohesive parameters (interface strength and interface stiffness) corresponding to the specified fracture energy release rates were obtained. Finally, a modified Tsai prediction method of cohesive zone model for simulating composite/adhesive delamination in hygrothermal environments was proposed based on an assumption of the composite/adhesive moisture diffusion process, which can be as a reference or basic data for numerical analysis of adhesively bonded composite structures.
引用
收藏
页码：710 / 721
页数：12
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