Computational Particle Mechanics最新文献

Modeling 3D concrete printing through the combined DEM-discrete fresh concrete approach 结合dem -离散新混凝土方法对3D混凝土打印建模

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2026-01-23 DOI: 10.1007/s40571-025-01104-x

Victor Hugo M. Avancini, Osvaldo D. Quintana-Ruiz, Eduardo M. B. Campello

{"title":"Modeling 3D concrete printing through the combined DEM-discrete fresh concrete approach","authors":"Victor Hugo M. Avancini, Osvaldo D. Quintana-Ruiz, Eduardo M. B. Campello","doi":"10.1007/s40571-025-01104-x","DOIUrl":"10.1007/s40571-025-01104-x","url":null,"abstract":"<div><p>Three-dimensional concrete printing (3DCP) has emerged as a promising manufacturing technique in the civil engineering sector, offering significant advantages over traditional construction methods. Despite its potential, challenges persist in optimizing the deposition process, particularly regarding the rheological characteristics of printable concrete, which affect filament formation and stability during printing. In this study, we implement the discrete fresh concrete (DFC) model within an in-house formulation of the discrete element method (DEM) to simulate the rheological behavior of fresh concrete during extrusion. While using our implementation to analyze how printing speed and concrete mixture affect the quality of single-layer printing, we identify limitations in the original DFC model to properly represent particle-particle and particle-surface tangential interactions, particularly in energy dissipation mechanisms. To improve the model’s robustness, we suggest modifications to account for static friction and rolling resistance in the material model. Once these limitations are overcome, our simulation results indicate that the enhanced DFC framework can provide valuable insights into the printing process, including filament formation and layer continuity and stability, and may be a useful tool for process optimization in 3DCP applications.</p></div>","PeriodicalId":524,"journal":{"name":"Computational Particle Mechanics","volume":"12 6","pages":"4515 - 4531"},"PeriodicalIF":2.8,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Particle-mesh search based on cell-linked list for fixed and moving polygon walls in moving particle semi-implicit method 移动粒子半隐式法中基于细胞链表的固定和移动多边形壁的粒子网格搜索

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-12-21 DOI: 10.1007/s40571-025-01100-1

Matheus Carlos Bandeira Teixeira, Rubens Augusto Amaro Junior, Liang-Yee Cheng

{"title":"Particle-mesh search based on cell-linked list for fixed and moving polygon walls in moving particle semi-implicit method","authors":"Matheus Carlos Bandeira Teixeira, Rubens Augusto Amaro Junior, Liang-Yee Cheng","doi":"10.1007/s40571-025-01100-1","DOIUrl":"10.1007/s40571-025-01100-1","url":null,"abstract":"<div><p>In continuum-based particle methods, the adoption of polygon meshes for solid boundary modeling provides more efficient and smoother representation of complex-shaped solid boundaries. However, the computation of the particle-mesh distances might be an additional time-consuming task if naively performed. This additional computational time, in turn, may become a bottleneck for practical modeling of fluid–structure interaction (FSI) problems involving complex-shaped moving or deformable bodies. In the present work, we propose a technique named point-mesh search based on cell-linked list (PSCL), aiming to increase the computational efficiency of the particle-mesh search procedure. It is a variant of strategies that takes advantage of the cell-linked list structure to narrow the search domain. We investigated the behaviors of the particle-mesh searching techniques’ performances by considering FSI cases with violent free-surface deformations, such as relatively simple geometry dam breaking hitting a block for validation of the impact loads; water entry of a parabolic cylinder modeled as moving body or as fixed body with bottom inflow to assess the overhead due to moving meshes; and impact loads on freefall lifeboats to evaluate the computational efficiency in practical engineering applications. The results show that PSCL is robust and reliable and achieves significant speedups for real-world applications with complex-shaped moving bodies, demanding very low overhead for moving meshes.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":524,"journal":{"name":"Computational Particle Mechanics","volume":"12 6","pages":"4467 - 4494"},"PeriodicalIF":2.8,"publicationDate":"2025-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implicit incompressible SPH(2) with novel Laplacian of velocity operator for highly viscous rotational problems 高粘性旋转问题的隐式不可压缩SPH(2)与新颖的拉普拉斯速度算子

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-12-20 DOI: 10.1007/s40571-025-01102-z

Daniel S. Morikawa, Mitsuteru Asai

引用次数: 0

Two-relaxation-time lattice Boltzmann method for elastodynamic wave propagation in solids 固体弹性动力波传播的双松弛时间晶格玻尔兹曼方法

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-12-04 DOI: 10.1007/s40571-025-01065-1

Henning Müller, Ralf Müller

引用次数: 0

Scaling laws for the size-dependent breakage force of brittle near-spherical particles under quasi-static loading 准静态加载下脆性近球形颗粒破碎力随尺寸变化的标度规律

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-11-18 DOI: 10.1007/s40571-025-01095-9

Eric Fimbinger, Katja Wisiak

{"title":"Scaling laws for the size-dependent breakage force of brittle near-spherical particles under quasi-static loading","authors":"Eric Fimbinger, Katja Wisiak","doi":"10.1007/s40571-025-01095-9","DOIUrl":"10.1007/s40571-025-01095-9","url":null,"abstract":"<div><p>This study investigates the size-dependent breakage force of brittle, near-spherical particles under quasi-static compressive loading. A physically motivated analytical model is derived, predicting a power-law relationship between particle size and breakage force—specifically, a quadratic scaling with diameter and a 2/3-power scaling with mass. To validate this model, a multi-material experimental campaign using synthetically produced spherical specimens was conducted, followed by a numerical simulation campaign using the Discrete Element Method (DEM) with a bonded particle modelling (BPM) approach.</p><p>The experimental results confirmed the proposed scaling law, with coefficients of determination (R<sup>2</sup>) exceeding 0.94 for a combined material consideration. The DEM simulations, calibrated using experimental data, reproduced breakage forces, and scaling patterns with high fidelity and enabled extension of the size range by a factor of more than two in diameter and four in mass, whilst also increasing statistical resolution through a higher number of replicates per size class. This numerical extension not only enabled broader parameter exploration but also mitigated experimental limitations, such as specimen variability, preparation inconsistency, and practical size constraints.Across analytical, experimental, and numerical approaches, consistent agreement was found, supporting the general applicability of the model. The findings provide a robust basis for defining breakage thresholds in DEM-based simulations—e.g. for replacement-based approaches—and offer a scalable alternative to physical testing. The validated framework facilitates improved prediction of breakage behaviour in slow compression systems such as jaw crushers and contributes to the broader understanding of particle-scale mechanics in brittle materials.</p></div>","PeriodicalId":524,"journal":{"name":"Computational Particle Mechanics","volume":"12 6","pages":"4451 - 4466"},"PeriodicalIF":2.8,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40571-025-01095-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in discrete element modeling of rock fracture for next-generation comminution models 面向下一代破碎模型的岩石断裂离散元建模研究进展

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-11-08 DOI: 10.1007/s40571-025-01092-y

Vedad Tojaga, Mijo Nikolić, Michael Denzel, Jacinto Ulloa, Adnan Ibrahimbegovic, Magnus Evertsson, Adam Bilock, Timo Saksala, Johannes Quist

{"title":"Advances in discrete element modeling of rock fracture for next-generation comminution models","authors":"Vedad Tojaga, Mijo Nikolić, Michael Denzel, Jacinto Ulloa, Adnan Ibrahimbegovic, Magnus Evertsson, Adam Bilock, Timo Saksala, Johannes Quist","doi":"10.1007/s40571-025-01092-y","DOIUrl":"10.1007/s40571-025-01092-y","url":null,"abstract":"<div><p>This paper provides a methodological overview of the current state of the art in discrete element modeling of rock fracture in the context of comminution, an energy-intensive process of breaking down rocks into smaller sizes. This process is essential for liberating valuable metals and minerals that are in growing demand for the green transition and the electrification of society. The paper covers the most recent developments and addresses fundamental issues in the bonded discrete element method, the lattice element method, the particle replacement method, and the level-set discrete element method. We argue that the most effective modeling approach must emerge from a synergy between solid mechanics, rock mechanics, and the comminution field—an effort made by this collaborating multidisciplinary group, with the goal of making the next generation of comminution models, powered by GPU-accelerated high-performance computing, more reflective of real-life rock behavior, advancing energy-efficient mining.</p></div>","PeriodicalId":524,"journal":{"name":"Computational Particle Mechanics","volume":"12 6","pages":"4431 - 4449"},"PeriodicalIF":2.8,"publicationDate":"2025-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40571-025-01092-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A monolithic PFEM-FEM approach for fluid–structure interaction with structural contact: applications in engineering and biomechanics 流体-结构相互作用与结构接触的整体pmm - fem方法：在工程和生物力学中的应用

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-10-11 DOI: 10.1007/s40571-025-01081-1

Darcy H. F. R. Moreira, Giovane Avancini, Rodolfo A. K. Sanches

{"title":"A monolithic PFEM-FEM approach for fluid–structure interaction with structural contact: applications in engineering and biomechanics","authors":"Darcy H. F. R. Moreira, Giovane Avancini, Rodolfo A. K. Sanches","doi":"10.1007/s40571-025-01081-1","DOIUrl":"10.1007/s40571-025-01081-1","url":null,"abstract":"<div><p>The simulation of fluid–structure interaction problems involving structural contact has a wide range of applications in engineering as well as in biomechanical contexts, such as the actuation of heart valves. However, simulating these problems presents significant challenges, particularly due to the occurrence of topological changes in the fluid domain, dynamic solid-to-solid contact, and the complexities of fluid–structure coupling. This paper presents a monolithic numerical framework for simulating fluid–structure interaction problems involving structural contact. The method combines a particle-position-based formulation of the particle finite element method (PFEM) for fluid dynamics with a position-based total Lagrangian formulation for nonlinear solid mechanics, and employs a node-to-segment algorithm with Lagrange multipliers to handle structural contact. The PFEM effectively addresses topological changes in the fluid domain by integrating remeshing techniques with the particle concept, while the node-to-segment algorithm proves to be a reliable method for managing structural contact, even in scenarios involving complex geometries. The particle-position-based approach uses nodal positions as primary variables, making the monolithic coupling with the total Lagrangian position-based formulation for the solid straightforward and efficient, resulting in a framework that is particularly effective for strongly coupled problems. The proposed approach is tested through two-dimensional numerical examples, demonstrating its robustness and potential for biomedical and engineering applications.\u0000</p></div>","PeriodicalId":524,"journal":{"name":"Computational Particle Mechanics","volume":"12 6","pages":"4405 - 4429"},"PeriodicalIF":2.8,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An element-free Galerkin approach for rate- and temperature-dependent behavior of inelastic solids 非弹性固体随速率和温度变化行为的无单元伽辽金方法

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-09-19 DOI: 10.1007/s40571-025-01060-6

Hojjat Badnava, Sayed Hassan Nourbakhsh, Mahmoud Pezeshki

{"title":"An element-free Galerkin approach for rate- and temperature-dependent behavior of inelastic solids","authors":"Hojjat Badnava, Sayed Hassan Nourbakhsh, Mahmoud Pezeshki","doi":"10.1007/s40571-025-01060-6","DOIUrl":"10.1007/s40571-025-01060-6","url":null,"abstract":"<div><p>In many engineering applications, materials are subjected to high loading rates and severe deformation, where the coupled effects of temperature and mechanical response become significant. This study presents an element-free Galerkin meshless method for modeling the thermo-viscoplastic behavior of materials under dynamic loading conditions. The formulation is derived based on first-order conservation laws for linear momentum, deformation gradient tensor, volume map, area map, and entropy, within a total Lagrangian framework. A variational multiscale stabilization approach is employed to ensure numerical robustness. The Johnson-Cook model is incorporated to capture strain rate sensitivity in plastic deformation. The method is validated through plasticity benchmark problems, including the modeling of Taylor impact test, necking bar, and equal channel angular pressing process. Furthermore, the temperature-dependent phase transformation behavior of shape memory alloys is simulated under dynamic loading. Results demonstrate the capability of the proposed method to accurately capture the complex interplay between thermal and mechanical effects in highly nonlinear scenarios.</p></div>","PeriodicalId":524,"journal":{"name":"Computational Particle Mechanics","volume":"12 6","pages":"4591 - 4623"},"PeriodicalIF":2.8,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of the PFEM to the study of blood flows and their interactions with highly deformable artery walls, including rupture 应用PFEM研究血流及其与高变形动脉壁的相互作用，包括破裂

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-09-09 DOI: 10.1007/s40571-025-01042-8

Jeanne Delhez, Martin Lacroix, Jean-Philippe Ponthot

{"title":"Application of the PFEM to the study of blood flows and their interactions with highly deformable artery walls, including rupture","authors":"Jeanne Delhez, Martin Lacroix, Jean-Philippe Ponthot","doi":"10.1007/s40571-025-01042-8","DOIUrl":"10.1007/s40571-025-01042-8","url":null,"abstract":"<div><p>Cardiovascular diseases are the leading cause of mortality worldwide, with projections indicating a concerning rise in related deaths. Computational models offer promising tools to understand the hemodynamics and biomechanical mechanisms underlying vascular failure. In particular, Fluid-Structure Interaction (FSI) algorithms have found significant applications in cardiovascular engineering. This study aims at demonstrating the relevance of the Particle Finite Element Method (PFEM). to model fluid–structure interactions between artery walls and blood flows, and assess the corresponding biomechanical aspects. For this, the flow–structure interaction problem is addressed using a partitioned approach with a strong coupling of the PFEM (for the fluid) and FEM (for the solid) models. Both Newtonian and Casson fluid models, as well as a Mooney–Rivlin hyperelastic model for the deformation of blood vessels, are incorporated. The numerical simulations successfully describe a wide range of situations, from the ejection of blood from the left ventricle to the dynamics of an abdominal aortic aneurysm. To the best of our knowledge, this work describes the very first applications of the PFEM to the study of blood flows in FSI simulations. It is also original by the explicit description of the rupture of the artery wall. Although the model could still be improved, for instance by introducing a turbulence model to deal with high–speed flow through the valve or considering anisotropic hyperelastic models for vessels, the results demonstrate the high potential of this method for describing the interactions of blood flows with the deforming artery walls.</p></div>","PeriodicalId":524,"journal":{"name":"Computational Particle Mechanics","volume":"12 6","pages":"4567 - 4590"},"PeriodicalIF":2.8,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modelling the breakage of coated particles using discrete element and bonded particle method 采用离散元法和结合粒子法对包覆颗粒的破碎进行建模

IF 2.8 3区工程技术

Computational Particle Mechanics Pub Date : 2025-09-06 DOI: 10.1007/s40571-025-01061-5

Wasif Safdar, Sonja Rotter, Maike Orth, Stefan Heinrich, Alexander Düster

引用次数: 0