The Cellular Automata Theory in Fracture Mechanisms Predictions

Andrzej Neimitz; Urszula Janus

doi:10.4028/www.scientific.net/SSP.258.149

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HomeSolid State PhenomenaSolid State Phenomena Vol. 258The Cellular Automata Theory in Fracture...

The Cellular Automata Theory in Fracture Mechanisms Predictions

Abstract:

In the presentation the cellular automata theory is applied to model the evolution of cleavage and ductile fracture mechanisms in front of the crack in three-point-bent specimens containing crack, made of Hardox-400 steel. The experimental and numerical results were used to define: dead elements, weakened elements and healthy elements. One element in the cellular automata model represents one grain. In some of elements large inclusions/interstitials are present. They are randomly distributed; however, to some degree the distribution of these inclusions depend on the strain level. Each element of the cellular automata can change the actual state due to the primary stress distribution, orientation of the cleavage planes {100} and the neighborhood of the fractured grain. The computer program allows for reproduction of the fractured surface as well as to simulate fracture mechanisms in various geometrical and temperature conditions.

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Periodical:

Solid State Phenomena (Volume 258)

Pages:

149-152

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.258.149

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Online since:

December 2016

Authors:

Andrzej Neimitz*, Urszula Janus

Keywords:

Cellular Automata, Fracture Mechanisms

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