Tehnički glasnik, Vol. 12 No. 2, 2018.
Izvorni znanstveni članak
https://doi.org/10.31803/tg-20180302115027
Method of material quality estimation with usage of multifractal formalism
Volodymyr Volchuk
orcid.org/0000-0001-7199-192X
; Department of materials science, Prydniprovs’ka State Academy of Civil Engineering and Architecture, Dnipro, Ukraine
Ievgenii Klymenko
orcid.org/0000-0002-4502-8504
; Odessa State Academy of Civil Engineering and Architecture, Odessa, Ukraine
Sergii Kroviakov
orcid.org/0000-0002-0800-0123
; Odessa State Academy of Civil Engineering and Architecture, Odessa, Ukraine
Matija Orešković
orcid.org/0000-0001-5684-0496
; University North, Department of Civil Engineering, Varaždin, Croatia
Sažetak
Feasibility of application of multifractal theory for evaluation of materials mechanical properties, cast iron in particular, has been considered. The proposed method enables evaluation of mechanical properties of materials based on determination of their sensitivity to dimensions of structure elements from the multifractal Renyi spectrum. Sensitivity of cast iron ultimate strength to informational dimension of carbides, ultimate bending strength to fractal dimension of carbides, impact strength to correlation dimension of carbides and hardness to fractal dimension of graphite have been determined. Fractal prediction models of quality characteristics of cast iron based on the analysis of the following its structure elements (carbides and graphite) have been received.
Ključne riječi
cast iron; graphite; mechanical properties; sensitivity coefficient; spectrum of Renyi dimensions; theory of multifractals
Hrčak ID:
202359
URI
Datum izdavanja:
15.6.2018.
Posjeta: 2.166 *