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Article Dans Une Revue Engineering Fracture Mechanics Année : 2015

3D study of the competitions between shear yielding and crazing for a variable thickness on ductile polymers

Résumé

The enthalpies of formation of transition metals diborides in various structures have been obtained from density functional theory (DFT) calculations in order to determine the ground state at T = 0 K and p = 0. The evolution of the enthalpies of formation along the 3D, 4D, and 5D series has been correlated to the considered crystal structures. In the whole, the calculated values of the enthalpies of formation of the diborides in their ground state are in good agreement with the experimental ones when available. The calculated values of the lattice parameters at T = 0 K of the ground state agree well with the experimental values. The total and partial electronic densities of states have been computed. Special features of the transition metal electronic partial density of states have been evidenced and correlated to the local environment of the atoms.

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Matériaux
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Dates et versions

hal-01298372 , version 1 (05-04-2016)

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Shu Guo, Dery Torres, Sabine Weygand, Christian Olagnon, Rafael Estevez. 3D study of the competitions between shear yielding and crazing for a variable thickness on ductile polymers. Engineering Fracture Mechanics, 2015, 149 (4), pp.230-249. ⟨10.1016/j.engfracmech.2015.08.042⟩. ⟨hal-01298372⟩
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