Evaluation of Plasticity Models Using Uniaxial Tensile Test

Year 2020, , 116 - 122, 20.09.2020

Aysema Ünlü Emre Esener , Mehmet Fırat

https://doi.org/10.26701/ems.736492

Cited By: 3

Abstract

In this study, it is aimed to evaluate plasticity model prediction performance for plastic behavior of materials using a uniaxial tensile test. For this purpose, von Mises, Hill-48, Hill-93, Barlat-89 and Hu -2003 plasticity models are studied, and DC04, DP780, 6000 series aluminum alloy are used as materials. Tensile tests are performed with three directions (rolling, diagonal, transverse), and mechanical properties of materials are obtained. In addition, anisotropy coefficients of materials are calculated by uniaxial tensile tests. Validation of plasticity models is performed using obtained material parameters. Yield locus and yield stresses-anisotropy coefficients depends on directions are used in evaluation of plasticity models. As a result of this study, Hu-2003 showed the best modeling performance for all materials.

Keywords

Plasticity Modeling, Tensile Test, Anisotropy, Yield Locus

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