Determination of Residual Stresses and Strains in Cold-Formed Steel Members Due to Roll-Forming Process

Cold Roll Forming (CRF) is an important sheet metal forming process in which a sheet is formed as it is bent gradually in several steps. Finite element method (FEM) analysis can be used to predict final geometry of cross section and distribution of residual stresses and strains. In this study, ۳D FEM analysis using numerical modeling software ABAQUS, is performed to simulate CRF process of a channel section. Calculated longitudinal strains were verified with experimental results obtained by Damm in ۱۹۸۹. Main goal of this study was to generate residual stresses and strains in the sheet due to its forming and to show the distribution of these residual components through both section and thickness.

کلیدواژه ها:

Cold Roll Forming ، Finite Element Analysis ، Residual Stress ، Residual Strain