Energy Reports (Nov 2021)

Strength equation of composite materials and fractal dimension of cracks

  • Boris Gusev,
  • Anna Grishina,
  • Evgenij Korolev,
  • Arkadij Ayzenshtadt

Journal volume & issue
Vol. 7
pp. 569 – 578

Abstract

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The paper presents the derivation of a strength equation of composite materials that can be represented in the form of polydisperse systems. The theoretical analysis shows that the process of composite material structure formation is anti-persistent. A structural transition was revealed at a volume defect concentration of 0.65, which leads to a sharp decrease in the relative material strength. The dependence for calculating the crack system fractal dimension based on the experimental dependences of the material strength and porosity is justified.

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