Heterogeneous materials - Scaling phenomena relevant to fracture and to fracture toughness

Mark J. Meisner, George N Frantziskonis

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The paper documents a study on novel fracture and fracture toughness properties of brittle heterogeneous materials. Before any external load is applied on a structure/specimen, certain material relevant variables are considered to form a random field. The implications of these underlying heterogeneous fields before fracture on the properties of the fracture network developed from external load application are examined first. Then, emphasis is given on the distribution of the spatial variation of the dissipated energy due to fracture which shows, under certain yet general conditions, multifractal scaling properties. Importantly such scaling depends not only on the initial heterogeneity present, but also on the externally applied load and on the nature and extend (depth) of relevant surface effects. From the engineering point of view, such properties of dissipated energy provide a renewed load-path as well as structure dependent definition of fracture toughness.

Original languageEnglish (US)
Pages (from-to)151-170
Number of pages20
JournalChaos, Solitons and Fractals
Volume8
Issue number2 SPEC. ISS.
StatePublished - Feb 1997

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Heterogeneous Materials
Fracture Toughness
fracture strength
Scaling
scaling
Surface Effects
brittle materials
Brittle Materials
Energy
Random Field
engineering
Engineering
Path
energy
Dependent

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics

Cite this

Heterogeneous materials - Scaling phenomena relevant to fracture and to fracture toughness. / Meisner, Mark J.; Frantziskonis, George N.

In: Chaos, Solitons and Fractals, Vol. 8, No. 2 SPEC. ISS., 02.1997, p. 151-170.

Research output: Contribution to journalArticle

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