@article{EvsevleevMishurovaCabezaetal.2018,
  author    = {Evsevleev, Sergei and Mishurova, Tatiana and Cabeza, Sandra and Koos, R. and Sevostianov, Igor and Garc{\´e}s, Gonzales and Requena, Guillermo and Fernandez, R. and Bruno, Giovanni},
  title     = {The role of intermetallics in stress partitioning and damage evolution of AlSil2CuMgNi alloy},
  series = {Materials Science and Engineering: A-Structural materials: properties, microstructure and processing},
  volume    = {736},
  journal   = {Materials Science and Engineering: A-Structural materials: properties, microstructure and processing},
  publisher = {Elsevier},
  address   = {Lausanne},
  issn      = {0921-5093},
  doi       = {10.1016/j.msea.2018.08.070},
  pages     = {453 -- 464},
  year      = {2018},
  abstract  = {Load partitioning between phases in a cast AlSi12CuMgNi alloy was investigated by in-situ compression test during neutron diffraction experiments. Computed tomography (CT) was used to determine volume fractions of eutectic Si and intermetallic (IM) phases, and to assess internal damage after ex-situ compression tests. The CT reconstructed volumes showed the interconnectivity of IM phases, which build a 3D network together with eutectic Si. Large stresses were found in IMs, revealing their significant role as a reinforcement for the alloy. An existing micromechanical model based on Maxwell scheme was extended to the present case, assuming the alloy as a three-phase composite (Al matrix, eutectic Si, IM phases). The model agrees well with the experimental data. Moreover, it allows predicting the principal stresses in each phase, while experiments can only determine stress differences between the axial and radial sample directions. Finally, we showed that the addition of alloying elements not only allowed developing a 3D interconnected network, but also improved the strength of the Al matrix, and the ability of the alloy constituents to bear mechanical load.},
  language  = {en}
}
@article{BrunoKachanovSevostianovetal.2018,
  author    = {Bruno, Giovanni and Kachanov, Mark and Sevostianov, Igor and Shyam, Amit},
  title     = {Micromechanical modeling of non-linear stress-strain behavior of polycrystalline microcracked materials under tension},
  series = {Acta materialia},
  volume    = {164},
  journal   = {Acta materialia},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {1359-6454},
  doi       = {10.1016/j.actamat.2018.10.024},
  pages     = {50 -- 59},
  year      = {2018},
  abstract  = {The stress-strain behavior of microcracked polycrystalline materials (such as ceramics or rocks) under conditions of tensile, displacement-controlled, loading is discussed. Micromechanical explanation and modeling of the basic features, such as non-linearity and hysteresis in stress-strain curves, is developed, with stable microcrack propagation and "roughness" of intergranular cracks playing critical roles. Experiments involving complex loading histories were done on large- and medium grain size beta-eucryptite ceramic. The model is shown to reproduce the basic features of the observed stress-strain curves. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.},
  language  = {en}
}
@article{SevostianovBruno2018,
  author    = {Sevostianov, Igor and Bruno, Giovanni},
  title     = {Maxwell scheme for internal stresses in multiphase composites},
  series = {Mechanics of Materials},
  volume    = {129},
  journal   = {Mechanics of Materials},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0167-6636},
  doi       = {10.1016/j.mechmat.2018.12.005},
  pages     = {320 -- 331},
  year      = {2018},
  abstract  = {The paper focuses on the reformulation of classic Maxwell's (1873) homogenization method for calculation of the residual stresses in matrix composites. For this goal, we equate the far fields produced by a set of inhomogeneities subjected to known eigenstrains and by a fictitious domain with unknown eigenstrain. The effect of interaction between the inhomogeneities is reduced to the calculation of the additional field acting on an inhomogeneity due to the eigenstrains in its neighbors. An explicit formula for residual stresses is derived for the general case of a multiphase composite. The method is illustrated by several examples. The results are compared with available experimental data as well as with predictions provided by the non-interaction approximation (Eshelby solution). It is shown that accounting for interaction can explain many experimentally observed phenomena and is required for adequate quantitative analytical modeling of the residual stresses in matrix composites.},
  language  = {en}
}