PROCESSING OF HIGH-SPEED CAMERA IMAGES OF HOPKINSON BAR EXPERIMENTS USING DIGITAL IMAGE CORRELATION

被引：0
|
作者：
Adorna, M. [1 ]
Neuhauserova, M. [1 ]
Fila, T. [1 ]
Falta, J. [1 ]
Koudelka, P. [1 ]
Zlamal, P. [1 ]
机构：
[1] Czech Tech Univ, Fac Transportat Sci, Konviktska 20, Prague 11000, Czech Republic
来源：
ENGINEERING MECHANICS 2019 | 2019年 / 25卷
关键词：
Digital Image Correlation; Hopkinson Bar; impact testing; auxetic structures; high-speed imaging;
D O I：
10.21495/71-0-29
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, digital image correlation method (DIC) is introduced as a tool for evaluation of high strain-rate experiments perfomed using Hopkinson Bar apparatus. Samples of advanced cellular materials with predefined periodic structure and negative Poisson's ratio (auxetic structures) were investigated in this study. In-house Hopkinson Pressure Bar apparatus was used to perform the impact experiments and the experimental setup was observed using a pair of high-speed cameras. Custom DIC software tool was used to evaluate highspeed cameras records. Selected representative results of DIC applications on Hopkinson Bar experiments are provided in this paper.
引用
收藏
页码：29 / 32
页数：4
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