材料工程2017，Vol.45Issue(12)：65-70,6.DOI:10.11868/j.issn.1001-4381.2015.000861
三维五向编织复合材料低速冲击及冲击后压缩性能实验研究
Experimental Investigation on Low-velocity Impact and Compression After Impact Properties of Three-dimensional Five-directional Braided Composites
摘要
Abstract
The low-velocity impact and compression after impact (CAI) properties of three-dimensional (3D) five-directional carbon fiber/epoxy resin braided composites were experimentally investigated . Specimens prepared with different braiding angles were tested at the same impact energy level .Resid-ual post-impact mechanical properties of the different configurations w ere characterized by compres-sion after impact tests .Results show that the specimens with bigger braiding angle sustain higher peak loads ,and smaller impact damage area ,mainly attributes to a more compact space construction . The CAI strength and damage mechanism are found to be mainly dependent on the axial support of the braiding fiber tows .With the increase of braiding angle ,the CAI strength decreases ,and the damage mode of the composites is changed from transverse fracture to shear failure .关键词
三维五向/编织复合材料/低速冲击/冲击后压缩/损伤机理Key words
3D five-directional/braided composite/low-velocity impact/CAI/damage mechanism分类
通用工业技术引用本文复制引用
严实,郭留雨,赵金阳,陆夏美,曾涛..三维五向编织复合材料低速冲击及冲击后压缩性能实验研究[J].材料工程,2017,45(12):65-70,6.基金项目
国家自然科学基金项目(11102055 ,11272110 ) （11102055 ,11272110 ）
