Coupling Diffraction Contrast Tomography with the Finite Element Method | Zendy

Proudhon Henry | Zendy; Li Jia | Zendy; Reischig Peter | Zendy; Guéninchault Nicolas | Zendy; Forest Samuel | Zendy; Ludwig Wolfgang | Zendy

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Coupling Diffraction Contrast Tomography with the Finite Element Method

Author(s) -

Proudhon Henry,

Li Jia,

Reischig Peter,

Guéninchault Nicolas,

Forest Samuel,

Ludwig Wolfgang

Publication year - 2016

Publication title -

advanced engineering materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.938

H-Index - 114

eISSN - 1527-2648

pISSN - 1438-1656

DOI - 10.1002/adem.201500414

Subject(s) - materials science , finite element method , crystallite , diffraction , anisotropy , grain boundary , lattice (music) , tomography , diffraction tomography , deformation (meteorology) , geometry , composite material , structural engineering , microstructure , mathematics , optics , physics , metallurgy , engineering , acoustics

This paper explains how to turn full three dimensional (3D) experimental grain maps into a finite elements (FE) mesh suitable for mechanical analysis. Two examples from diffraction contrast tomography characterizations are presented. Deformation of a pure titanium sample with 1400 grains is computed using elastic anisotropy and accurate boundary conditions allows to correctly capture the grain to grain elastic strain variations. In the second example a significantly large zone of a polycrystalline Al–Li sample is meshed and computed using elastoplastic finite strain calculation. Mean lattice reorientations and intra‐grain lattice orientation spread are obtained as a function of deformation.

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