@ARTICLE{Jasiński_C._A_2019,
 author={Jasiński, C. and Kocańda, A. and Morawiński, Ł. and Świłło, S.},
 volume={vol. 64},
 number={No 4},
 journal={Archives of Metallurgy and Materials},
 pages={1231-1238},
 howpublished={online},
 year={2019},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 abstract={Advanced vision method of analysis of the Erichsen cupping test based on laser speckle is presented in this work. This method proved to be useful for expanding the range of information on material formability for two commonly used grades of steel sheets: DC04 and DC01. The authors present a complex methodology and experimental procedure that allows not only to determine the standard Erichsen index but also to follow the material deformation stages immediately preceding the occurrence of the crack. Accurate determination of these characteristics in the sheet metal forming would be an important application, especially for automotive industry. However, the sheet metal forming is a very complex manufacturing process and its success depends on many factors. Therefore, attention is focused in this study on better understanding of the Erichsen index in combination with the material deformation history.},
 type={Article},
 title={A New Approach to Experimental Testing of Sheet Metal Formability for Automotive Industry},
 URL={http://www.journals.pan.pl/Content/113573/PDF/AMM-2019-4-04-Jasinski.pdf},
 doi={10.24425/amm.2019.130085},
 keywords={vision system, defect detection, Erichsen cupping test, laser speckle},
}