Granular element method for computational particle mechanics

JE Andrade, KW Lim, CF Avila, I Vlahinić - Computer Methods in Applied …, 2012 - Elsevier
This paper presents a method within the family of the discrete element method (DEM)
capable of accurately capturing grain shape by using Non-Uniform Rational Basis-Splines …

Granular element method for three‐dimensional discrete element calculations

KW Lim, JE Andrade - … for Numerical and Analytical Methods in …, 2014 - Wiley Online Library
This paper endows the recently‐proposed granular element method (GEM) with the ability to
perform 3D discrete element calculations. By using non‐uniform rational B‐Splines to …

NURBS-diff: A differentiable programming module for NURBS

AD Prasad, A Balu, H Shah, S Sarkar, C Hegde… - Computer-Aided …, 2022 - Elsevier
Boundary representations (B-reps) using Non-Uniform Rational B-splines (NURBS) are the
de facto standard used in CAD, but their utility in deep learning-based approaches is not …

Meta-meshing and triangulating lattice structures at a large scale

Q Zou, Y Gao, G Luo, S Chen - Computer-Aided Design, 2024 - Elsevier
Lattice structures have been widely used in applications due to their superior mechanical
properties. To fabricate such structures, a geometric processing step called triangulation is …

Improved dexel representation: A 3-d cnn geometry descriptor for manufacturing cad

X Fu, D Peddireddy, V Aggarwal… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this article, we present a novel 3-D descriptor, improved dexel representation (IDR), which
assists to input holistic information from an engineering computer-aided design (CAD) …

Rapid B-rep model preprocessing for immersogeometric analysis using analytic surfaces

C Wang, F Xu, MC Hsu, A Krishnamurthy - Computer aided geometric …, 2017 - Elsevier
Computational fluid dynamics (CFD) simulations of flow over complex objects have been
performed traditionally using fluid-domain meshes that conform to the shape of the object …

Surface–surface-intersection computation using a bounding volume hierarchy with osculating toroidal patches in the leaf nodes

Y Park, SH Son, MS Kim, G Elber - Computer-Aided Design, 2020 - Elsevier
We present an efficient and robust algorithm for computing the intersection curve of two
freeform surfaces using a Bounding Volume Hierarchy (BVH), where the leaf nodes contain …

Refined modeling and identification of complex rock blocks and block-groups based on an enhanced DFN model

M Li, Y Zhang, S Zhou, F Yan - Tunnelling and Underground Space …, 2017 - Elsevier
Valid modeling and identification of rock blocks are the keys to analyzing rock-mass stability.
Based on the Monte Carlo method and 2D Poisson point process, an enhanced polygonal …

Topology driven approximation to rational surface-surface intersection via interval algebraic topology analysis

JS Cheng, B Zhang, Y Xiao, M Li - ACM Transactions on Graphics (TOG), 2023 - dl.acm.org
Computing the intersection between two parametric surfaces (SSI) is one of the most
fundamental problems in geometric and solid modeling. Maintaining the SSI topology is …

Self-intersection computation for freeform surfaces based on a regional representation scheme for miter points

Y Park, QY Hong, MS Kim, G Elber - Computer Aided Geometric Design, 2021 - Elsevier
We present an efficient and robust algorithm for computing the self-intersection of a freeform
surface, based on a special representation of miter points, using sufficiently small …