Boundary Element Crystal Plasticity Method

Mallardo, V.

Risultato della ricerca: Article

Abstract

A three-dimensional (3D) boundary element method for small strains crystal plasticity is described. The method, developed for polycrystalline aggregates, makes use of a set of boundary integral equations for modeling the individual grains, which are represented as anisotropic elasto-plastic domains. Crystal plasticity is modeled using an initial strains boundary integral approach. The integration of strongly singular volume integrals in the anisotropic elasto-plastic grain-boundary equations are discussed. Voronoi-tessellation micro-morphologies are discretized using nonstructured boundary and volume meshes. A grain-boundary incremental/iterative algorithm, with rate-dependent °ow and hardening rules, is developed and discussed. The method has been assessed through several numerical simulations, which con¯rm robustness and accuracy.
Lingua originaleEnglish
pagine (da-a)-
Numero di pagine7
RivistaJOURNAL OF MULTISCALE MODELLING
Volume8
Stato di pubblicazionePublished - 2017

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Crystal Plasticity
Boundary Elements
Plasticity
Crystals
Boundary element method
Hardening
Voronoi Tessellation
Grain boundaries
Grain Boundary
Plastics
Computer simulation
Mesh
Robustness
Numerical Simulation
Three-dimensional
Dependent
Modeling

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Boundary Element Crystal Plasticity Method. / Mallardo, V.

In: JOURNAL OF MULTISCALE MODELLING, Vol. 8, 2017, pag. -.

Risultato della ricerca: Article

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abstract = "A three-dimensional (3D) boundary element method for small strains crystal plasticity is described. The method, developed for polycrystalline aggregates, makes use of a set of boundary integral equations for modeling the individual grains, which are represented as anisotropic elasto-plastic domains. Crystal plasticity is modeled using an initial strains boundary integral approach. The integration of strongly singular volume integrals in the anisotropic elasto-plastic grain-boundary equations are discussed. Voronoi-tessellation micro-morphologies are discretized using nonstructured boundary and volume meshes. A grain-boundary incremental/iterative algorithm, with rate-dependent °ow and hardening rules, is developed and discussed. The method has been assessed through several numerical simulations, which con¯rm robustness and accuracy.",
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T1 - Boundary Element Crystal Plasticity Method

AU - Mallardo, V.

AU - Benedetti, Ivano

AU - Gulizzi, Vincenzo

PY - 2017

Y1 - 2017

N2 - A three-dimensional (3D) boundary element method for small strains crystal plasticity is described. The method, developed for polycrystalline aggregates, makes use of a set of boundary integral equations for modeling the individual grains, which are represented as anisotropic elasto-plastic domains. Crystal plasticity is modeled using an initial strains boundary integral approach. The integration of strongly singular volume integrals in the anisotropic elasto-plastic grain-boundary equations are discussed. Voronoi-tessellation micro-morphologies are discretized using nonstructured boundary and volume meshes. A grain-boundary incremental/iterative algorithm, with rate-dependent °ow and hardening rules, is developed and discussed. The method has been assessed through several numerical simulations, which con¯rm robustness and accuracy.

AB - A three-dimensional (3D) boundary element method for small strains crystal plasticity is described. The method, developed for polycrystalline aggregates, makes use of a set of boundary integral equations for modeling the individual grains, which are represented as anisotropic elasto-plastic domains. Crystal plasticity is modeled using an initial strains boundary integral approach. The integration of strongly singular volume integrals in the anisotropic elasto-plastic grain-boundary equations are discussed. Voronoi-tessellation micro-morphologies are discretized using nonstructured boundary and volume meshes. A grain-boundary incremental/iterative algorithm, with rate-dependent °ow and hardening rules, is developed and discussed. The method has been assessed through several numerical simulations, which con¯rm robustness and accuracy.

UR - http://hdl.handle.net/10447/246495

UR - https://www.worldscientific.com/doi/abs/10.1142/S1756973717400030

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JO - Journal of Multiscale Modeling

JF - Journal of Multiscale Modeling

SN - 1756-9737

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