材料工程Issue(4)：38-42,5.
UHMWPE/乙烯基酯2.5D角联锁机织复合材料动态压缩性能实验研究
Experimental Investigation on Dynamic Compression Properties of UHMWPE/Vinyl Ester 2.5 Dimensional Angle Interlocked Woven Composites
摘要
Abstract
The compressive properties of composites in the through-thickness direction were tested using the SHPB and SHIMADZU. The compressive stress-strain curve, and strain at yield stress, and impact energy absorption of the composites were obtained under three kinds of high strain rates (360, 710s-1 and 1120s-1) and quasi-static compression, which had the same fiber volume fraction. The compressive failure mode and energy absorption mechanism were discussed from the breakage configurations of coupons. The results indicated that the compressive properties of UHMWPE/vinyl ester 2.5D angle interlocked woven composites in the through-thickness direction were strain rate dependent. The yield stress, strain at yield stress and modulus were sensitive to the strain rates, and all increased with the increased of strain rate. Additionally, the damage started from the bending area of the warp and downs to shear fracture along the through-thickness direction. The separation between fiber tow and resin and the shear fracture of fiber tow were the predominant failure modes of the composites under dynamic compressive loading, energy absorption for elastic property of component materials and shear fracture of the fiber tow were the major energy absorption mechanisms.关键词
UHMWPE/乙烯基酯/2.5D角联锁机织复合材料/动态压缩/能量吸收/破坏模式Key words
UHMWPE/vinyl ester/ 2.5D angle interlocked woven composite/ dynamic compressive/ energy absorption/ failure mode分类
通用工业技术引用本文复制引用
孙颖,王国军,张典堂,陈利,张明..UHMWPE/乙烯基酯2.5D角联锁机织复合材料动态压缩性能实验研究[J].材料工程,2011,(4):38-42,5.基金项目
天津市应用基础及前沿技术研究计划资助项目(09JCYBJC03700) （09JCYBJC03700）
天津市科技计划资助项目(10SYSYJC27800) （10SYSYJC27800）
