Geodesic
Numerical modeling of deformation and strength of sandwich composite structures with defects
Matematičeskoe modelirovanie i čislennye metody, no. 11 (2016), pp. 3-23 Cet article a éte moissonné depuis la source Math-Net.Ru

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The purpose of this research was to develop a multilevel model for multiscale deformation of three-layer (sandwich) structures made of polymeric composite materials such as plates with a foam based filler. We took into account the micromechanical processes of deformation and damageability in the matrix and reinforcing filler and foam, as well as macroscopic defects such as non-impregnation of the composite skins. First, we did a finite element modeling of stress-strain state, damageability and destruction of the sandwich plates with skins made of hybrid carbon fiber composites, with different types of defect such as non-impregnation, under the flexural uniform pressure. Then we found the characteristic features of the deformation and damageability process in this type of composite structures. Finally, we developed a method which can be used to calculate the deformation, damageability and destruction of sandwich plates made of polymer composite materials applied in various industries: shipbuilding, aviation, rocketry.
Keywords: Sandwich structures, polymer composite materials, multiscale modeling, defects, finite element method, layered fiber composites, monofilaments, damageability. 
@article{MMCM_2016_11_a0,
     author = {Yu. I. Dimitrienko and Yu. V. Yurin and N. N. Fedonyuk},
     title = {Numerical modeling of deformation and strength of sandwich composite structures with defects},
     journal = {Matemati\v{c}eskoe modelirovanie i \v{c}islennye metody},
     pages = {3--23},
     year = {2016},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMCM_2016_11_a0/}
}
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Yu. I. Dimitrienko; Yu. V. Yurin; N. N. Fedonyuk. Numerical modeling of deformation and strength of sandwich composite structures with defects. Matematičeskoe modelirovanie i čislennye metody, no. 11 (2016), pp. 3-23. http://geodesic.mathdoc.fr/item/MMCM_2016_11_a0/