Springback analysis of high strength steel sheet subjected to draw-bending and its experimental validation

DOI

Bibliographic Information

Other Title
  • 張力曲げ－曲げ戻し変形を受ける高張力鋼板のスプリングバック解析と実験検証

Description

Draw-bending experiment has been carried out using high strength steel sheet with a tensile strength of 980 MPa and the residual curvature of the draw-bent specimens has been precisely measured. The die profile of the draw-bending testing machine rotates, so that the effect of friction force on the curvature data after springback can be neglected in this experiment. Moreover, in order to quantitatively evaluate the work hardening behavior of the test material under reverse loading, stress reversal tests were performed using an in-plane stress reversal testing machine. Furthermore, the springback analysis of the draw-bent specimen has been carried out using the total strain theory. The effect of the constitutive model (Bauschinger effect, non-linearlity during unloading, decrease of Young's modulus with prestraining) on the predictive accuracy of the springback analysis has been investigated in detail.

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Keywords

Details 詳細情報について

  • CRID
    1390282680569894528
  • NII Article ID
    130004604830
  • DOI
    10.11345/japannctam.60.0.27.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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