Formulation of Equivalent Plastic Strain Accumulated in Rotating Bending Process of Metal Tubes for Severe Plastic Deformation
The newly proposed rotating bending process of metal tubes is a novel kind of Severe Plastic Deformation (SPD) process, which is expected to refine and control the microstructure of metallic tubular materials. The stress distribution and accumulated equivalent plastic strain of deformation part have a significant influence on the microstructure refinement and control of metal tubes during the rotating bending process. The present study focused on the analysis of stress and strain of deformation part during rotating bending process of metal tubes. The model of the deforming metal tubes was proposed. The formulas for determining the stress and accumulated equivalent plastic strain were successfully achieved by analyzing the deformation of metal tubes during rotating bending process.
Zhengyi Jiang, Xianghua Liu and Jingtao Han
Z. C. Zhang et al., "Formulation of Equivalent Plastic Strain Accumulated in Rotating Bending Process of Metal Tubes for Severe Plastic Deformation", Advanced Materials Research, Vols. 887-888, pp. 907-911, 2014