Optimal Data-Generation Strategy for Machine Learning Yield Functions in Anisotropic Plasticity

نویسندگان

چکیده

Trained machine learning (ML) algorithms can serve as numerically efficient surrogate models of sophisticated but expensive constitutive material behavior. In the field plasticity, ML yield functions have been proposed that basis a model for plastic If training data such flow rules is gained by micromechanical models, procedure be considered homogenization method captures essential information microstructure-property relationships given material. However, generating with methods, example, crystal plasticity finite element method, challenging task. Hence, in this work, it investigated how an optimal data-generation strategy established produces reliable and accurate least possible effort. It shown even materials significant anisotropy, polycrystals pronounced Goss texture, 300 points representing locus stress space, are sufficient to train function successfully. Furthermore, demonstrated data-oriented used standard analysis.

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ژورنال

عنوان ژورنال: Frontiers in Materials

سال: 2022

ISSN: ['2296-8016']

DOI: https://doi.org/10.3389/fmats.2022.868248