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New Formulas of Shear Strain during Equal-channel Angular Pressing Process with Consideration of Influences of Velocity and Motion Traj ectory

机译:考虑速度和运动轨迹影响的等通道角挤压过程中的剪切应变新公式

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摘要

The influences of die parameters on shear strain were investigated by using two-dimensional finite element simula-tion.New formulas of shear strain were proposed.According to the results of formulas,the shear strain showed a linear de-pendence on the difference between internal and external fillet radius and the slope was determined by the intersection angle. The simulation results indicated that the velocities of the points from different zones were different in the specimen and the motion trajectories of different points did not follow geometrical laws.The influences of the average velocity and the mo-tion traj ectory on shear strain were incorporated in the formula to calculate the shear strain produced during equal-channel angular pressing process.The reliability of simulation results has been partially validated by experiments.
机译:研究了模具参数对剪切菌株的影响,采用二维有限元模拟研究。提出了剪切菌株的新公式。根据公式的结果,剪切应变显示了内部差异的线性脱义和外部圆角半径和斜率由交叉角确定。仿真结果表明,不同区域的点的速度在样本中不同,不同点的运动轨迹并未遵循几何法。平均速度和MO-TiOn Traj enctory的影响纳入其中计算在等通道角压加工过程中产生的剪切应变的公式。通过实验部分验证了模拟结果的可靠性。

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  • 来源
    《钢铁研究学报(英文版)》 |2016年第10期|1020-1027|共8页
  • 作者单位

    Key Laboratory of Superlight Material and Surface Technology Ministry of Education,Harbin Engineering University,Harbin 150001,Heilongjiang,China;

    Key Laboratory of Superlight Material and Surface Technology Ministry of Education,Harbin Engineering University,Harbin 150001,Heilongjiang,China;

    Key Laboratory of Superlight Material and Surface Technology Ministry of Education,Harbin Engineering University,Harbin 150001,Heilongjiang,China;

    Center for Biomedical Materials and Engineering,Harbin Engineering University,Harbin 150001,Heilongjiang,China;

    Key Laboratory of Superlight Material and Surface Technology Ministry of Education,Harbin Engineering University,Harbin 150001,Heilongjiang,China;

  • 收录信息 中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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  • 入库时间 2024-01-27 06:31:00
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