Ran Guo
Kunming University of Science and Technology
Porous mediumFinite element methodBrittlenessMatrix (mathematics)Reciprocity (electromagnetism)Composite materialCylinder stressMaterials scienceExtended finite element methodVoronoi diagramStress functionsStress fieldStress concentrationEdge (geometry)Strain energy release rateStress intensity factorMechanicsPolynomial (hyperelastic model)Fracture mechanicsStress (mechanics)Node (circuits)
3Publications
1H-index
5Citations
Publications 4
Newest
#1Rui Zhang (Kunming University of Science and Technology)
#2Ran Guo (Kunming University of Science and Technology)
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#2Ran Guo (Kunming University of Science and Technology)
Abstract In this paper, a new extended Voronoi cell finite element method (X-VCFEM), in which two new elements in the crack propagation process are proposed and a remeshing algorithm is constructed, is proposed to model the initiation and propagation of the interface crack and the matrix crack in particulate reinforced composites. In order to accurately capture crack-tip stress concentrations, some singular stress terms of Williams expansion in the vicinity of crack tips are introduced in the st...
1 CitationsSource
#2Ran Guo (Kunming University of Science and Technology)
Abstract This paper introduces a new extended Voronoi cell finite-element method (X-VCFEM) for modelling the propagation of multiple cracks in brittle materials. The direction of the crack propagation is adaptively determined in terms of the maximum energy release rate near the crack tip, and we apply a remeshing strategy that a node at a last incremental crack tip in the crack advance process is replaced by a node pairs to realize the gradual crack propagation. In order to accurately capture cr...
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#2Ran Guo (Kunming University of Science and Technology)
Abstract In this paper, a new singular Voronoi cell finite element method (S-VCFEM) is proposed to study the initiation and propagation of interfacial debonding and matrix cracking in particulate reinforced composite. Composites with large-scale inclusions and cracks can be easily simulated with this model. A new assumed stress hybrid variational functional is derived from the element energy function to accommodate the interface traction reciprocity on bonded interface and the interface traction...
5 CitationsSource