High strain-rate deformation of composite materials using a Split Hopkinson Bar technique

被引：12
|
作者：
Lee, OS [1 ]
Lee, JY
Kim, GH
Hwang, JS
机构：
[1] Inha Univ, Sch Mech Aerosp & Automat Engn, Inchon 402751, South Korea
[2] Yeungnam Univ, Sch Mech Engn, Kyongsan 712160, South Korea
来源：
FRACTURE AND STRENGTH OF SOLIDS, PTS 1 AND 2 | 2000年 / 183-1卷
关键词：
composite materials; dynamic maximum compressive stresses; dynamic stress-strain behavior; high strain rate; pseudo dynamic elastic moduli; Split Hopkinson Pressure Bar SHPB;
D O I：
10.4028/www.scientific.net/KEM.183-187.307
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A specific experimental method, the Split Hopkinson Pressure Bar (SHPB) technique has been constructed to determine the dynamic stress-strain relationships for composite materials under the impact compressive loading conditions with strain-rate of the order of 10(3)/s. The dynamic stress-strain behaviors are estimated by using the strain output from the gages attached on the incident and transmitted bars in the SHPB technique. Both the dynamic compressive maximum stresses and pseudo dynamic moduli of the tested composite materials are found to be highly sensitive to the strain rate. Furthermore, a bilinear relationship between the dynamic compressive maximum stresses and the log strain rate is noted.
引用
收藏
页码：307 / 312
页数：6
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