Study on large deformation bending properties of rollable composite laminates

被引：0
|
作者：
Zhou Z. [1 ,2 ]
Cheng X.-Q. [1 ]
Zhang T. [3 ]
Chen L. [3 ]
Wu Y.-K. [1 ]
机构：
[1] School of Aeronautic Science and Engineering, Beihang University, Beijing
[2] Shanghai Institute of Satellite Engineering, Shanghai
[3] Aerospace Specialty Materials and Technology Institute, Beijing
来源：
Gongcheng Lixue/Engineering Mechanics | 2020年 / 37卷 / 08期
关键词：
Bending; Composite laminates; Fatigue; Large deformation; Nonlinearity;
D O I：
10.6052/j.issn.1000-4750.2019.09.0527
中图分类号：
学科分类号：
摘要：
The bending static properties and fatigue properties of rollable laminates made of glass fiber braided composites under large deformation are studied. The relationship between strain and displacement under large deformation is obtained by bending static tests. The load of fatigue tests is determined by finite element simulation of static tests and comparing the results of finite element simulation with static tests. The bending fatigue life and failure mode of different laminates, together with fatigue life curve of the same ply composite laminates under large deformation are studied. The results show that the composite laminates have obvious non-linear behavior in large deformation bending, and the bending fatigue performance of (±45°) laminates is better than that of (0°/90°) laminates. Besides, holding the ratio of minimum strain to maximum strain constant, there is a linear relationship between maximum strain and logarithmic fatigue life. © 2020, Engineering Mechanics Press. All right reserved.
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页码：213 / 220and229
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