Deformation Law of Cold Drawing Process of High Strength Bridge Cable Steel

Abstract

High-strength cable-steel bridge is the “lifeline” of steel structure bridges, which requires high comprehensive mechanical properties, and cold-drawing is the most important process to produce high-strength cable-steel bridge. Therefore, through the ABAQUS platform, a bridge wire drawing model was established, and the simulation analysis on the process of stress strain law and strain path trends for high-strength bridge steel wire from Φ 12.65 mm by seven cold-drawing to Φ 6.90 mm was conducted. The simulation results show that the wire drawing the heart of the main axial deformation, surface and sub-surface of the main axial and radial deformation occurred, with the increase in the number of drawing the road, the overall deformation of the wire was also more obvious non-uniformity. In the single-pass drawing process, the change in the potential relationship of each layer of material was small, and multiple inflection points appeared in the strain path diagram; the change in the seven-pass potential relationship was more drastic, which can basically be regarded as a simple superposition of multiple single-pass pulls.

Numerical Simulation of Initial Crack Propagation of Steel-Concrete Composite Beams Based on XFEM

“…In recent years, many scholars have used XFEM to simulate crack growth in different fields. Yin et al [7] analyzed the crack propagation in the cold drawing process of high-strength bridge cables based on XFEM. Fu et al [8] studied the fatigue crack growth life of the single-edge cracks on 304 stainless steel sheets by using the XFEM method combined with the Paris formula.…”