On the inverse identification of sheet metal mechanical behaviour using a heterogeneous Arcan virtual experiment

On the inverse identification of sheet metal mechanical behaviour using a heterogeneous Arcan virtual experiment

HENRIQUES Joao, ANDRADE-CAMPOS António, XAVIER José

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Abstract. Modelling and simulation are critical stages of product development in modern industry. Simulation tools in solid mechanics use constitutive models and their parameters to describe the behaviour of materials. Nowadays, with the use of heterogeneous test configurations and full-field measurements, it is possible to measure a combination of multiple strain states, allowing for the identification of multiple parameters from a single test with reduced cost and time. This work aims to investigate the potential for obtaining heterogeneous states of strain\stress with the Arcan test configuration. A finite element model was developed using a specimen with a smooth arc section in which the loading and material directions varied, producing tensile, shear, or mixed mode responses. The most heterogeneous test configuration was selected using a heterogeneous criterion and the numerical results were used to generate synthetic speckle pattern images and further processed by digital image correlation (DIC). The DIC results were used as input for the identification procedure through the virtual fields method (VFM) for the simultaneous calibration of the Swift hardening law and the Hill’48 anisotropic yield criterion. The identified solution was compared with the ground truth material parameters. The results show the potential of combining the Arcan test with the VFM to simultaneously identify material parameters for anisotropic plasticity models of sheet metals.

Keywords
Sheet Metal Forming, Anisotropic Plasticity, Arcan Test, Heterogeneous Test Evaluation, Inverse Identification, Digital Image Correlation, Synthetic Images

Published online 4/19/2023, 12 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: HENRIQUES Joao, ANDRADE-CAMPOS António, XAVIER José, On the inverse identification of sheet metal mechanical behaviour using a heterogeneous Arcan virtual experiment, Materials Research Proceedings, Vol. 28, pp 1131-1142, 2023

DOI: https://doi.org/10.21741/9781644902479-124

The article was published as article 124 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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