Relationships between 3d Grain Structure and Local Inhomogeneous Deformation: A Laboratory-Based Multimodal X-Ray Tomography Investigation

Kobayashi, Masakazu; Zhang, Yubin; Ishikawa, Haruki; Sun, Jun; Oddershede, Jette; Jensen, D. Juul; Miura, Hiromi

doi:10.2139/ssrn.3919740

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Cpfem Simulation1

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2022

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“…The simulation is based on the actual morphology and orientation of an Al-4mass%Cu alloy sample characterized by laboratory-based X-ray diffraction contrast tomography (LabDCT) [3,6]. Figure 1a shows the grain structure of the gauge section of the undeformed sample, which is typical of a wellannealed polycrystalline sample with an average grain size of ~80 µm and a weak texture.…”

Section: Cpfem Simulationmentioning

confidence: 99%

A CPFEM based theoretical analysis of strains resolved by the microstructural feature tracking method

Quey

Zhang

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In this work, it is investigated how grain boundaries influence the local strain determination by the microstructural feature tracking (MFT) algorithm. In this method, tetrahedra are used as the strain calculation unit. We apply the MFT processing procedure on data obtained by a crystal plasticity finite element modeling (CPFEM) simulation to explore the uncertainties in the calculated strains caused by grain boundaries. Effects of tetrahedron types and radius ratios are discussed.

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Section: Cpfem Simulationmentioning

confidence: 99%