Articles
  • Anisotropy at high temperatures  
  • Y.T. Keum* and B.Y. Ghoo
  • Ceramic Processing Research Center (CPRC), Hanyang University, Seoul 133-791, Korea
Abstract
In this study, special attention is paid to the definition of planar anisotropy of non-ferrous sheets at high temperatures. Barlats strain potential is employed for depicting the yield behavior. A smoothing function with a third order polynomial is introduced for non-isothermal Barlats anisotropy coefficients. The predicted Barlats coefficients are compared with experimentally obtained coefficients. As a crucial result, the smoothing function provides a big advantage in evaluating non-isothermal Barlats anisotropy coefficients: there is no necessity to carry out tensile tests in high temperatures.

Keywords: Anisotropy, Barlats Yield Function, Constitutive Equation, High Temperature, Non-isothermal Forming

This Article

  • 2002; 3(3): 178-181

    Published on Sep 30, 2002

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