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The Influence of Bauschinger Effect in Straightening Process

机译：包辛格效应在矫直过程中的影响

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摘要

The yield stress changes during the straightening process, because of the Bauschinger effect. This effect leads to a different reduction rate in each straightening roller. To accurately estimate the straightening effect of the rolled piece, the Bauschinger effect must be considered in calculating the reduction rate. In this paper, the straightening model is described by the fast multipole boundary element method. The Bauschinger effect model is discussed in the elastic loading region and elastic plastic loading region. Young's modulus reduction and the reverse yield stress reduction are obtained for the straightening force model. The straightening force formula including the Bauschinger effect is determined by analyzing the tension and compression processes. This formula reflects the changes of the yield stress and the straightening force in the tension and compression processes. It is concluded that the Bauschinger effect is a very important factor for the precise estimation of the straightening force.
机译：由于包辛格效应，在矫直过程中屈服应力会发生变化。这种效果导致每个矫直辊的压下率不同。为了准确估计轧制件的矫直效果，在计算压下率时必须考虑包辛格效应。本文采用快速多极边界元方法描述了矫直模型。在弹性加载区域和弹性塑性加载区域中讨论了鲍辛格效应模型。对于矫直力模型，获得杨氏模量降低和反向屈服应力降低。通过分析拉伸和压缩过程，可以确定包括包辛格效应的矫直力公式。该公式反映了拉伸和压缩过程中屈服应力和矫直力的变化。结论是，鲍辛格效应是精确估计矫直力的重要因素。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第2期|612840.1-612840.5|共5页
  • 作者

    Gui Hai-Lian; Li Qiang; Huang Qing-Xue;

  • 作者单位

    Taiyuan Univ Sci & Technol, Mat Sci & Engn Sci Coll, Taiyuan 030024, Peoples R China.;

    Taiyuan Heavy Ind Co Ltd, Ctr Technol, Taiyuan 030024, Peoples R China.;

    Taiyuan Univ Sci & Technol, Mat Sci & Engn Sci Coll, Taiyuan 030024, Peoples R China.;

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