Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2017 - September 06, 2017
The purpose of this study is to elucidate the status of the local deformation generated under large deformation, which is measured by using the image analysis. The Natural Strain theory is the effective strain representation, which can remove the rigid body rotation from the shearing strain components and satisfy the additive law of strain, so in this research, the Natural Strain theory is effectively used in the image analysis. In order to elucidate the effect of change in material properties on the progress of local deformation, the local deformation generated under tensile tests is investigated by using the test pieces, which is preliminary applied a simple shear. As for the pre-deformation of simple shear, three different types of the deformation path are examined in this study. Then, the effects of these pre-deformation on the progress of local deformation during tensile deformation are revealed.
