Punch-stretch tests were conducted on Advanced High Strength Steel (AHSS) specimens. A special stretching mechanism with two embedded high resolution digital cameras had been designed and used in punch-stretch tests. The deforming processes were recorded by the cameras and the full-field strain distribution for each specimen was evaluated using Digital Image Correlation (DIC) technique, a full-field, non-contact, high accuracy optical and computational technique for contour, displacement and strain measurement. Data of Strain path, necking and other strain behavior were extracted using DIC. Different data analysis methods were tried to achieve useful information for predicting the failure. The data set could be used for researches on the effect of the strain path on the forming limit.
Full Field Strain Measurement of Punch-stretch Tests Using Digital Image Correlation
Sae Int. J. Mater. Manf
Sae International Journal of Materials and Manufacturing
SAE 2012 World Congress & Exhibition ; 2012
Sae International Journal of Materials and Manufacturing ; 5 , 2 ; 345-351
2012-04-16
7 pages
Conference paper
English
Full Field Strain Measurement of Punch-stretch Tests Using Digital Image Correlation
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