Abstract
In the last period of time, due to the excessive development of computer based technology and of the data acquisition systems, some new techniques are elaborate to determine the deformation state of a body loaded with external forces. One of the most developed techniques is the image analysis method [1, 2, 3], method which eliminate the difficulties that are found in case of classical methods used for deformation determination. Moreover, this method, used for study of metallic and non-metallic [4, 5, 6] body deformation brings in an important development in the study of material flow phenomenon [7, 8, 9 10, 11]. As a result of theoretical and experimental research, have been conceive image analysis systems used for deformation determination, called video-extensometer. This paper present aspect regarding working principles of the image analysis method, some advantages with respect to the classical methods and the obtained results.