Measurement of the forming limit stress curve using a multi-axial tube expansion test with a digital image correlation system

2013 ◽  
Author(s):  
Tomoyuki Hakoyama ◽  
Toshihiko Kuwabara
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Image Correlation ◽  
Forming Limit ◽  
Expansion Test ◽  
Stress Curve ◽  
Correlation System ◽  
Limit Stress ◽  
Tube Expansion

scholarly journals Application of digital image correlation system for analysis of local plastic instabilities of perforated thin-walled bars

2018 ◽  
Vol 196 ◽  
pp. 01032 ◽  
Author(s):  
Andrzej Piotrowski ◽  
Marcin Gajewski ◽  
Cezary Ajdukiewicz
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Plastic Material ◽  
Low Carbon Steel ◽  
Image Correlation ◽  
Theoretical Point ◽  
Low Carbon ◽  
Compression Tests ◽  
Correlation System ◽  
Thin Walled

In the presented paper the local instabilities occurring in compression test of perforated thin-walled bars of low slenderness are observed using digital image correlation system ARAMIS. The tested samples slenderness is so low, that from theoretical point of view we are dealing with compression tests of some perforated shells. The samples are made from typical low carbon steel, which has to be treated as elasto-plastic material. Because of that, the final geometry of the sample (after unloading) is also analysed giving a good data for calibration of the theory of elasto-plasticity for large deformations. In analysed cases the total strain values are not exceptionally large, while local rotation (and permanent deformations) have significant values.

Development of draw-bending testing method using digital image correlation system

2017 ◽  
Author(s):  
Chiharu Sekiguchi ◽  
Tomoyuki Hakoyama ◽  
Toshihiko Kuwabara ◽  
Hiroshi Fukiharu
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Image Correlation ◽  
Testing Method ◽  
Correlation System ◽  
Draw Bending

Measuring forming limit strains with digital image correlation analysis

2014 ◽  
Vol 214 (5) ◽  
pp. 1120-1130 ◽  
Author(s):  
Kaifeng Wang ◽  
John E. Carsley ◽  
Baiyan He ◽  
Jingjing Li ◽  
Lianhong Zhang
Keyword(s):  
Digital Image Correlation ◽  
Correlation Analysis ◽  
Digital Image ◽  
Image Correlation ◽  
Forming Limit ◽  
Digital Image Correlation Analysis
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