2004
DOI: 10.1590/s0101-82052004000200014
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Finite element-based model for crack propagation in polycrystalline materials

Abstract: Abstract.In this paper, we use an extended form of the finite element method to study failure in polycrystalline microstructures. Quasi-static crack propagation is conducted using the extended finite element method (X-FEM) and microstructures are simulated using a kinetic Monte Carlo Potts algorithm. In the X-FEM, the framework of partition of unity is used to enrich the classical finite element approximation with a discontinuous function and the two-dimensional asymptotic crack-tip fields. This enables the do… Show more

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Cited by 19 publications
(13 citation statements)
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“…Cracking analyses of geomaterials with random structures fit naturally in this group. The CrackPath3 computer code uses the new criterion for prediction of the crack propagation direction which is simpler than suggested for polycrystalline materials by Sukumar and Srolovitz [21].…”
Section: Discussionmentioning
confidence: 99%
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“…Cracking analyses of geomaterials with random structures fit naturally in this group. The CrackPath3 computer code uses the new criterion for prediction of the crack propagation direction which is simpler than suggested for polycrystalline materials by Sukumar and Srolovitz [21].…”
Section: Discussionmentioning
confidence: 99%
“…There may be mentioned, for example, the approach proposed by Honein and Herrmann [7] and Sukumar and Srolovitz [21], where considered materials similar to that described in this work.…”
Section: Crack Propagation Analysismentioning
confidence: 99%
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“…This problem is considered in Sukumar and Srolovitz. [72]. The material is assumed to be homogeneous and isotropic with E = 1 and ν = 0.3.…”
Section: Convergence Studymentioning
confidence: 99%
“…However most of these packages require extensive continuous re-meshing to capture geometric discontinuity during subsequent crack advancements which can be computationally expensive. There are some techniques which do not require the need for remeshing including the extended finite element method (X-FEM) which has been demonstrated by Sukumar et al [9][10][11][12][13] in their 2D and 3D models.…”
Section: Introductionmentioning
confidence: 99%