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This research was conducted in order to study the plastic properties and fracture conditions of steel 45 under complex loading. The analog of this material is steel 1045 USA, C 45 Germany, S45C Japan, ML45 China. A complex stress state was created in thin-walled tubular samples by the combined action of torque and axial tensile or compressive forces. The loading trajectories are two-link polylines. In the first section, a simple proportional loading (stretching with torsion) was performed. The second section corresponded to a complex loading. Loading programs with trajectory fractures at angles 45, 90, 135, 180 and their mirrored versions are considered. Thus, the deformation trajectories form a displaced fan. Experimental diagrams characterizing the scalar and vector properties of the studied material under a given deformation are presented. The results will be useful in substantiating the validity of plasticity theories and their mathematical models.

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Experimental Verification of the Modern Theory of Processes Provisions in Case of Biaxial Plastic Deformation of Steel 45

  • 会议论文

  • 发表日期：

    2025年

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  • V. I. Gul’tyaev,
  • A. N. Bulgakov,
  • A. A. Alekseev,
  • I. A. Savrasov,
  • A. N. Shirokov

摘要

This research was conducted in order to study the plastic properties and fracture conditions of steel 45 under complex loading. The analog of this material is steel 1045 USA, C 45 Germany, S45C Japan, ML45 China. A complex stress state was created in thin-walled tubular samples by the combined action of torque and axial tensile or compressive forces. The loading trajectories are two-link polylines. In the first section, a simple proportional loading (stretching with torsion) was performed. The second section corresponded to a complex loading. Loading programs with trajectory fractures at angles 45, 90, 135, 180 and their mirrored versions are considered. Thus, the deformation trajectories form a displaced fan. Experimental diagrams characterizing the scalar and vector properties of the studied material under a given deformation are presented. The results will be useful in substantiating the validity of plasticity theories and their mathematical models.