Ricardo A. Lebensohn

FFT-based modelling of elastic resonances in non-periodic polycrystalline specimens

Javier Segurado, Amina Askhat, Ricardo A. Lebensohn

Anisotropy of Mushes (ANIMUSH): Deformation, fabrics, and anisotropy of olivine–melt aggregates at the plutonic–volcanic transition

Eloi González‐Esvertit, Claudia Prieto-Torrell, Yuanchao Yu, Enrique Gómez-Rivas et autres

ANIMUSH (Anisotropy of Mushes; https://animush.eu) provides a comprehensive suite of full-field numerical simulations of dynamic recrystallization and melt distribution in partially molten olivine aggregates, generated using the VPFFT-ELLE approach. The models are designed to investigate stress-driven melt connection and segregation at the …

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Achieving geometric accuracy in FFT-based micromechanical models using conformal grid

Miroslav Zecevic, Ricardo A. Lebensohn, Laurent Capolungo

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Micropolar deep material network

Noah M. Francis, Dongil Shin, Ricardo A. Lebensohn, Fatemeh Pourahmadian et autres

A generalizable machine learning-assisted fast Fourier transform algorithm to simulate the large strain phenomena in polycrystalline materials

Benhour Amirian, Abhijit Brahme, Ricardo A. Lebensohn, Kaan Inal

Machine learning methods have shown initial promise in constitutive modeling for single crystals or homogenized polycrystals , delivering notable computational efficiency. However, existing machine learning-based constitutive models often lack generalizability, limiting their application across diverse boundary value problems . This study introduces …

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Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach

Yuanchao Yu, Albert Griera, Enrique Gómez-Rivas, Paul D. Bons et autres

The rheological properties of mantle rocks are strongly dependent on their crystallographic preferred orientation (CPO). Olivine CPO, defined by the orientation of seismically fast [100] axes parallel to flow direction, is also thought to be a dominant contributor to seismic anisotropy in …

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Multiscale Modeling of the Mechanical Response of Silicon Carbide Composite Within the Accelerated Fuel Qualification Framework

George M. Jacobsen, Chris Ellis, J. B. Kosmatka, H.D. Shatoff et autres

The accelerated fuel qualification (AFQ) framework has been used for the initial development of multiscale modeling of silicon carbide (SiC) fiber reinforced composite (SiC-SiC). The AFQ framework provides a methodology to leverage physics-informed multiscale modeling along with a reduced set of empirical …

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Elasto-viscoplastic fast Fourier transform modeling framework for assessing microstructural effects on stress intensity factors characterizing fracture toughness

Milica Letic, Benjamin Anglin, Miroslav Zecevic, Ricardo A. Lebensohn et autres

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The influence of kinematics of deformation on polycrystalline halite dynamic recrystallization: Full-field simulation of simple shear versus pure shear

Baoqin Hao, Albert Griera, María-Gema Llorens, Paul D. Bons et autres

Rock salt, composed mainly of halite, flows viscoplastically over a wide range of geological conditions, strongly impacting the dynamic evolution of sedimentary basins and orogens. Understanding how dislocation creep, which involves dislocation glide, intracrystalline recovery and dynamic recrystallization, influences the microstructure and …

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Anisotropy development during dynamic recrystallisation of partially molten olivine

María-Gema Llorens, Eloi González‐Esvertit, Albert Griera, Chao Qi et autres

The processes of partial melting and subsequent melt transport are fundamental to Earth's differentiation, from the separation of the core and mantle to magma generation, evolution, segregation and ascent within mantle and crustal domains. Active volcanoes have as their source the partially …

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Role of face centered cubic/body centered cubic phase boundary crystallography on void growth

Paul G. Christodoulou, Miroslav Zecevic, Ricardo A. Lebensohn, Irene J. Beyerlein

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Extended FFT-based micromechanical formulation to consider general non-periodic boundary conditions

Miroslav Zecevic, Ricardo A. Lebensohn

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