The transverse impact responses of 3-D braided composite I-beam

被引：26
|
作者：
Zhou, Haili [1 ,2 ]
Hu, Dongmei [1 ,3 ]
Zhang, Wei [1 ]
Gu, Bohong [1 ,2 ]
Sun, Baozhong [1 ,2 ]
机构：
[1] Donghua Univ, Minist Educ, Key Lab High Performance Fibers & Prod, Coll Text, Shanghai 201620, Peoples R China
[2] Donghua Univ, Ctr Civil Aviat Composites, Shanghai 201620, Peoples R China
[3] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Div Adv Nanomat, Suzhou 215123, Peoples R China
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2017年 / 94卷
基金：
美国国家科学基金会;
关键词：
A. Textile composites; B; I-beam; C. Transverse impact tests; D. Finite element analysis (FEA); E; Braiding; T-BEAM; BEHAVIOR; MODEL;
D O I：
10.1016/j.compositesa.2016.11.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reports the transverse impact responses of 3-D braided composite I-beam from experiment and finite element analysis (FEA). The transverse impact tests were conducted on a modified split Hopkinson pressure bar (SHPB). Three different impact gas pressures were set to research the effect of the impact velocity on the transverse impact behaviors of the I-beams. A microstructure geometric model was established to model the real structure of 3-D braided composite I-beam. The mechanical responses including load -time history, displacement-time history and energy absorption were obtained. Damage process and stress distribution were analyzed from the FEA result. From the result, the complex braided structure remarkably affected the stress state of different braiding yarns. Finally, the fracture morphologies obtained from FEA and experimental results showed a good agreement which validated the established model.(C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：158 / 169
页数：12
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