Predicting the limiting strength of nontextured matrix composites

Bardushkin, V. V.; Yakovlev, V. B.; Сычев, А. П.; Sychev, A. A.; Kirillov, D. A.; Sorokin, A. I.

doi:10.3103/s1068798x15010062

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…The matrix breakdown leads to full failure of the material. Therefore, it is believed [Kolesnikov et al 2014;Bardushkin et al 2015] that stress applied to the composite (for example, compression in a certain direction) becomes destructive only when the internal stress in the matrix exceeds its ultimate strength. Here the magnitude of the internal stress in the matrix under external impact is compared to the known value of the ultimate strength of the matrix set experimentally or taken from the respective references.…”

Section: 3mentioning

confidence: 99%

Predictive modeling of mechanical properties of metal filled anodic aluminum oxide

Bardushkin

Shilyaeva

Гаврилов

et al. 2016

J. Mech. Mater. Struct.

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Filling dielectric porous matrices, particularly anodic aluminum oxide, with metal confers a promising solution for nanocomposite creation. In this regard, the problem of estimating and predicting the physical and mechanical properties of such materials is of prime importance. The present work focuses on the numerical modeling of the effective and ultimate stress-strain (under compression) characteristics of nanocomposites based on anodic aluminum oxide with unidirectional filamentary pores filled with different metals (In, Sn, and Zn). The dependences of the tensor components of the effective elastic moduli, coefficients of elastic anisotropy (in different directions), and compression strength (along the nanowires) on the structure parameters and the concentration of nanowires are investigated.

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Section: 3mentioning

confidence: 99%

Predictive modeling of mechanical properties of metal filled anodic aluminum oxide

Bardushkin

Shilyaeva

Гаврилов

et al. 2016

J. Mech. Mater. Struct.

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show abstract

Section: 3mentioning

confidence: 99%

Untitled

2016

J. Mech. Mater. Struct.

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A theoretical study is conducted on an orthotropic solid with a nanodefect (e.g., inclusion, hole, or crack) under far-field antiplane shear loading. A rigorous analytical solution of the stress fields is presented using the Gurtin-Murdoch surface/interface model and a conformal mapping technique. Several new and existing solutions are considered for the special and degenerated cases. The major results of the study are as follows:(1) Interface stresses are greatly dependent on size when the size of a defect is at the nanometer scale, and the interface stresses approach the classical elasticity results when a defect has large characteristic dimensions.(2) The interface effect of a nanodefect decreases with an increase in defect section aspect ratio.(3) When the modulus of the defect (inclusion) increases, the interface effect decreases, i.e., the interface effect can be neglected when the inclusion is sufficiently hard.

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