Unstructured Computational Meshes for Subdivision Geometry of Scanned Geological Objects

Mezentsev, A.; Munjiza, Ante; Latham, John

doi:10.1007/3-540-29090-7_5

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…Sluiter and Hansen's work was later revisited and revised by many including Talbert and Parkinson [10] and Sarrate and Huerta [11]. Mezentsev et al [12] described a generic approach to unstructured mesh generation on subdivision geometry. Berzin et al [13] developed in recent years a subdivision technique based on Modified Butterfly interpolation scheme for triangular mesh generation.…”

Section: Subdivision Methodsmentioning

confidence: 97%

A Combined Subdivision and Advancing Loop-Front Surface Mesher (Triangular) for Automotive Structures

Mukherjee

2010

Int. J. Vehicle Structures and Systems

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In this paper, a new, hybrid, 2D meshing algorithm, CSALF-T, is proposed for boundary-structured triangular meshes used for the analyses of automotive structures. The algorithm is based on the understanding of boundary loops. All mesh area boundary loops are initially meshed recursively with a new, loop-based advancing "loop-front" technique that produces high-quality boundary-structured meshes. The remaining interior domain is filled out by a recursive subdivision technique. Both approaches are driven by a background sizing function. The mesh is finally smoothed by a variational smoother. Loop-fronts are classified and rule sets are defined for each, to aid optimum point placement. Stencils used for loop-closure are presented. Results show examples of meshes used for the crash analyses of automotive body panels with large mesh size transition generated on complex 2D domains. Comparisons are made to pronounce the merits of the hybrid algorithm with respect to both traditional advancing front and subdivision based meshing techniques. CITATION: N. Mukherjee. 2010. A combined subdivision and advancing loop-front surface mesher (triangular) for automotive structures, Int. J. Vehicle Structures & Systems, 2(1), 28-37.

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Section: Subdivision Methodsmentioning

confidence: 97%

A Combined Subdivision and Advancing Loop-Front Surface Mesher (Triangular) for Automotive Structures

Mukherjee

2010

Int. J. Vehicle Structures and Systems

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“…Two approaches are commonly used to simulate non-spherical particles. One approach is grouping several spherical particles to form various particles in different shapes [20,21,24,25], while the other approach is generating non-round particles for 2D modeling and non-spherical particles for 3D modeling directly [26][27][28]. Rothenburg and Bathurst adopted 2D elliptical particles for DEM simulation, and their results showed that these particles have different strength characteristics than circular disks [29].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Gravity Flow in Sublevel Caving Based on Polyhedron DEM

Yi,

Johansson,

Wimmer

et al. 2023

Mining, Metallurgy & Exploration

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The gravity flow behavior of blasted ore and caved waste in sublevel caving (SLC) mines is complex. The shape of fragmented ore and caved waste is identified as one of the principal factors influencing the gravity flow of ore. To investigate the effect of the particle shapes on the gravity flow, a code was developed to generate polyhedral fragments in different shapes and divide them into internal elements. Then these fragments were imported in the LS-DYNA code to generate SLC models containing blasted ore and caved waste and model the extraction process. To model the non-continuous loading process, the gravity flow was considered to be an intermittent process by setting a switcher at the extraction point. The flow behavior of ore from the numerical modeling is in agreement with the experimental results. The cumulative dilution of ore by waste is up to around 30%, which agrees with the results of the field survey.

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CSALF-Q: A Bricolage Algorithm for Anisotropic Quad Mesh Generation

Mukherjee

2011

Proceedings of the 20th International Meshing Roundtable

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Unstructured Computational Meshes for Subdivision Geometry of Scanned Geological Objects

Cited by 4 publications

References 16 publications

A Combined Subdivision and Advancing Loop-Front Surface Mesher (Triangular) for Automotive Structures

A Combined Subdivision and Advancing Loop-Front Surface Mesher (Triangular) for Automotive Structures

Numerical Simulation of Gravity Flow in Sublevel Caving Based on Polyhedron DEM

CSALF-Q: A Bricolage Algorithm for Anisotropic Quad Mesh Generation

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