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HomeKey Engineering MaterialsKey Engineering Materials Vols. 353-358Investigating Morphology Evolution of Damage by a...

Investigating Morphology Evolution of Damage by a Cellular Automaton Modelling

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Abstract:

A two-dimensional cellular automaton (CA) model is developed to simulate damage and fracture morphology evolution on the mesoscale in materials. The plastic convection of damage is mapped onto the CA lattice, and initiation, propagation and coalescence of damage are simulated with a local rule-based scheme of a probability cellular automaton. The model includes known physical distinctions of fracture behavior between microcracks and microvoids, and they are characterized by modifying the probability rule of the cellular automaton. The simulations provide visual insight to understand how those physical processes dynamically progress and they affect the damage evolution in materials. The modeling can be used to link micromechanical models to continuum damage models.

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Progresses in Fracture and Strength of Materials and Structures

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Periodical:

Key Engineering Materials (Volumes 353-358)

Pages:

1060-1063

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.353-358.1060

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Online since:

September 2007

Authors:

Jing Zhang, Nai Hui Song, Xiao Peng Li, Zhao Hui Ren, Bang Chun Wen

Keywords:

Cellular Automaton (CA), Computer Simulation, Damage Evolution, Fracture

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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