Particle cracking in discretely reinforced materials with the voronoi cell finite element model

1998 ◽  
Vol 14 (8) ◽  
pp. 805-827 ◽  
Author(s):  
S. Moorthy ◽  
S. Ghosh
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Voronoi Cell ◽  
Element Model ◽  
Particle Cracking ◽  
Reinforced Materials

Voronoi Cell Finite Element Model for Thermoelastoplastic Deformation in Random Heterogeneous Media

1994 ◽  
Vol 47 (1S) ◽  
pp. S207-S220 ◽  
Author(s):  
Suresh Moorthy ◽  
Somnath Ghosh ◽  
Yunshan Liu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Heterogeneous Media ◽  
Voronoi Cell ◽  
Element Model ◽  
Second Phase ◽  
Element Mesh ◽  
Model Composite ◽  
Elasto Plasticity ◽  
Dirichlet Tessellation

A finite element model has been developed for analysis of heterogeneous media, in which second phase inclusions are arbitrarily dispersed within a matrix. A mesh generator based on Dirichlet tessellation, discretizes the heterogeneous domain, accounting for the arbitrariness in location, shape and size of the second phase. This results in a network of convex “Voronoi” polygons which form the elements in a finite element mesh. An assumed stress hybrid formulation has been implemented for accommodating arbitrary multi-sided elements in the finite element model. Composite element formulations have been developed to incorporate the effect of second phase within each element. Formulations have been developed for thermo-elasticity, micropolar elasticity and elasto-plasticity.

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