Influence of the strain rate on the mechanical behavior of the 3D needle-punched C/SiC composite

被引：39

作者：

Li, Yulong ^{[1
]}

Suo, Tao ^{[1
]}

Liu, Mingshuang ^{[1
]}

机构：

[1] NW Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 507卷 / 1-2期

基金：

国家教育部博士点专项基金资助; 中国国家自然科学基金;

关键词：

3D needle-punched C/SiC composites; Mechanical properties; High strain rate; Dynamic compression strength; Damage angle; CARBON/SILICON CARBIDE COMPOSITES; COMPRESSION; MODEL;

D O I：

10.1016/j.msea.2009.01.024

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Compressive mechanical behavior of a 3D needle-punched C/SiC composite at room temperature was investigated at strain rate ranging from 10(-4) to 6.5 x 10(3) l/s using the electronic universal testing machine and the split Hopkinson pressure bar. The experimental results show the strain rate has slight influence on the mechanical property of the material. The dynamic compression strength obeys the Weibull distribution with the Weibull parameter m calculated as 8.19. Scanning electron microscope (SEM) images of the fracture surface of specimens tested at various strain rates indicate that the failure pattern of the material also varies with the strain rate. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：6 / 12

页数：7

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