Results 61 to 70 of about 383 (176)

Data‐Driven Detection of Internal Erosion Initiation in Gap‐Graded Soils: Combining Particle‐Scale CFD‐DEM Simulation With 3D Convolutional Autoencoder

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 17, Page 4225-4247, 10 December 2025.
ABSTRACT Internal erosion in gap‐graded soils poses significant risks to water‐retaining structures such as earth dams. However, its underlying mechanisms at the particle scale remain poorly understood. This study couples the discrete element method (DEM) with computational fluid dynamics (CFD) to simulate internal erosion in gap‐graded soil assemblies
Jie Qi   +3 more
wiley   +1 more source

A Comparative Study of Physics‐Informed and Data‐Driven Neural Networks for Compound Flood Simulation at River‐Ocean Interfaces: A Case Study of Hurricane Irene

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Simulating compound flooding (CF) at the river‐ocean interface within large‐scale Earth System Models (ESMs) presents significant challenges due to complex interactions between river discharge, storm surge, and tides. This study assesses the comparative advantages of physics‐informed and data‐driven machine learning (ML) approaches for ...
Dongyu Feng   +5 more
wiley   +1 more source

The Applications of Meshfree Particle Methods at the Nanoscale [PDF]

open access: yes, 2005
Since meshfree particle methods are beneficial in simulating the problems involving extremely large deformations, fractures, etc., these methods become attractive options in multiscale modeling, especially when approaching a large number of atoms. In this paper, we propose preliminary research on applying meshfree particle methods to solve nanoscale ...
Weixuan Yang, Shaoping Xiao
openaire   +1 more source

A parametrized variational principle of nonlinear piezoelectricity

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The variational theory is the theoretical basis of the finite element method, meshfree particle methods and other modern numerical techniques. The present paper establishes a family of variational principles for nonlinear piezoelectricity.
Ji-Huan He
doaj  

A Study of the Partition of Unity-based T3-CNS and T3-DNS Finite Elements in Surface Fitting

open access: yesCivil Engineering Dimension
Various alternative, enhanced finite element methods (FEMs) have been proposed to improve the accuracy and convergence of traditional FEM. One promising approach is the hybrid FEM-meshfree method using the partition of unity concept. This study examines
Heri Istiono, Wong Foek Tjong
doaj   +1 more source

Determination of the critical load and energy release rate in mode II delamination using a meshfree method

open access: yesScience and Engineering of Composite Materials, 2014
Simulation of fracture by using numerical methods is important to treat geometries that change in time. In this study, both numerical and experimental investigations are presented for the delamination under mode II loading, detailing the derivation of ...
Pekbey Yeliz   +3 more
doaj   +1 more source

Evaluation of coupled finite element/meshfree method for a robust full-scale crashworthiness simulation of railway vehicles

open access: yesAdvances in Mechanical Engineering, 2016
The crashworthiness of a railway vehicle relates to its passive safety performance. Due to mesh distortion and difficulty in controlling the hourglass energy, conventional finite element methods face great challenges in crashworthiness simulation of ...
Zhao Tang   +4 more
doaj   +1 more source

Recent Progress on Mesh-free Particle Methods for Simulations of Multi-phase Flows: A Review

open access: yesKONA Powder and Particle Journal, 2019
The discrete element method (DEM) and the moving particle semi-implicit (MPS) method are the most popular mesh-free particle methods in the discontinuum and continuum. This paper describes a state-of-the-art modeling on multi-phase flows using these mesh-
Mikio Sakai   +3 more
doaj   +1 more source

Modeling of plate structures for Galerkin meshfree methods (2nd report: Geometrical non-linear analysis)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
In 1st report, the authors presented Galerkin-based meshfree modeling for folded plate structures. A flat shell formulation was developed including drilling rotation components, and multiple point constraint technique was introduced to model the folded ...
Shota SADAMOTO   +2 more
doaj   +1 more source

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