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<p>The present work describes an inverse analysis method for determining the material flow stress law based on experimental measurements of rolling torque, taking into account the thermal gradient between the workpiece. The approach involves coupling a mathematical model of rolling, which can predict rolling torque, with a mathematical optimizer that minimizes the difference between experimental values and model predictions in terms of torque using an objective function. Finite element analysis (FEM) is well-known for accurately predicting forming loads and material behavior in rolling processes. To validate the developed strategy, numerical tests were conducted using FEM to obtain rolling torque values in place of experimental measurements.</p>

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Inverse flow stress model validation in hot rolling with different thermal conditions

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • Antonio Del Prete,
  • Teresa Primo

摘要

The present work describes an inverse analysis method for determining the material flow stress law based on experimental measurements of rolling torque, taking into account the thermal gradient between the workpiece. The approach involves coupling a mathematical model of rolling, which can predict rolling torque, with a mathematical optimizer that minimizes the difference between experimental values and model predictions in terms of torque using an objective function. Finite element analysis (FEM) is well-known for accurately predicting forming loads and material behavior in rolling processes. To validate the developed strategy, numerical tests were conducted using FEM to obtain rolling torque values in place of experimental measurements.