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

页码：29 / 32

页数：4