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Three-Dimensional Numerical Homogenization of Nanocomposites: Surface Effects and Interaction Energy.DE (en Inglés)
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Reseña del libro "Three-Dimensional Numerical Homogenization of Nanocomposites: Surface Effects and Interaction Energy.DE (en Inglés)"
This work presents a contribution to the three-dimensional numerical homogenization of nanocomposites where surface energy effects are significant, taking into account nanovoids, nanoinclusions, and cracks. The proposed approach is based on the Extended Finite Element Method (XFEM) coupled with the Level-Set technique and implemented in Matlab. Validation is carried out by comparison with results obtained using the CASTM18 finite element code, demonstrating the accuracy and robustness of the developed model.Parametric studies are conducted to analyze the evolution of the effective compressibility modulus with respect to crack size, shape, and distribution in a 3D homogenization framework. The methodology is further extended to the homogenization of nanoporous materials considering surface energy effects and interaction energy between nanovoids under pressure and periodic boundary conditions. Finally, the influence of random nanovoids on the effective behavior of nanomaterials is investigated, highlighting the combined role of surface elasticity and interaction energy at the nanoscale.
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