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Article Dans Une Revue Mechanics Research Communications Année : 2021

Effects of particles size on the overall strength of nanocomposites: Molecular Dynamics simulations and theoretical modeling

Antoine Lucchetta
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Stella Brach
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Djimédo Kondo
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Résumé

We perform Molecular Dynamics simulations to investigate the strength properties of particulate reinforced nanocomposites. For a fixed reinforcement volume fraction, the effective strength increases as the inclusion size decreases. We further develop a kinematic limit analysis approach, which delivers theoretical estimates of the effective strength. The model is first assessed in the absence of size effects by comparison with data from available literature. An extension to nanocomposites is then proposed, accounting for the presence of surface stresses at the matrix/inclusion interface. Numerical data are used to calibrate the interfacial strength, which is found to be a size-dependent property.
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Dates et versions

hal-03404664 , version 1 (26-10-2021)

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  • HAL Id : hal-03404664 , version 1

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Antoine Lucchetta, Stella Brach, Djimédo Kondo. Effects of particles size on the overall strength of nanocomposites: Molecular Dynamics simulations and theoretical modeling. Mechanics Research Communications, 2021. ⟨hal-03404664⟩
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