0000000000751384

AUTHOR

Vincenzo Mallardo

showing 2 related works from this author

A grain boundary formulation for crystal plasticity

2016

Abstract A three-dimensional grain-boundary formulation for small strains crystal plasticity is presented for the first time. The method is developed and implemented for both single grains and polycrystalline aggregates and it is based on the use of a suitable set of boundary integral equations for modelling the individual grains, which are represented as anisotropic elasto-plastic domains. In the boundary integral framework, crystal plasticity is modelled resorting to an initial strains approach and specific aspects, related to the integration of strongly singular volume integrals in the anisotropic elasto-plastic grain-boundary equations, are discussed and suitably addressed for the first…

Materials scienceIterative methodCrystal plasticityCrystal plasticity Polycrystalline material02 engineering and technologyB. Polycrystalline materialNOVolume integralPolycrystalline material0203 mechanical engineeringGeneral Materials SciencePolygon meshMechanics of MaterialAnisotropyMechanical EngineeringMathematical analysis021001 nanoscience & nanotechnologyStrength of materialsCrystallography020303 mechanical engineering & transportsMechanics of MaterialsEmbeddingGrain boundaryCrystalliteMaterials Science (all)0210 nano-technologyB. Crystal plasticity
researchProduct

Boundary Element Crystal Plasticity Method

2017

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 flow and har…

Mathematical optimizationPolycrystalline materials crystal plasticity micromechanics boundary elementMaterials scienceDiscretizationIterative methodCrystal plasticityPolycrystalline materials02 engineering and technology01 natural sciencesNOVolume integralmicromechanicsboundary elementPolycrystalline material0203 mechanical engineering0101 mathematicsMicromechanicBoundary element methodBoundary element method.Mathematical analysisMicromechanicsSingular boundary methodBoundary knot methodComputer Science Applications010101 applied mathematics020303 mechanical engineering & transportsModeling and SimulationAnalytic element methodJournal of Multiscale Modelling
researchProduct