Engineering with Computers最新文献_第2页

IGANets: Isogeometric analysis networks and their applications to linear structural analysis problems. 等几何分析网络及其在线性结构分析问题中的应用。

IF 4.1 2区工程技术

Engineering with Computers Pub Date : 2026-01-01 Epub Date: 2026-05-11 DOI: 10.1007/s00366-026-02312-6

Matthias Möller, Günther Obermair, Isabella Singer, Christian Gollmann, Alessandro Reali, Stefanie Elgeti

{"title":"IGANets: Isogeometric analysis networks and their applications to linear structural analysis problems.","authors":"Matthias Möller, Günther Obermair, Isabella Singer, Christian Gollmann, Alessandro Reali, Stefanie Elgeti","doi":"10.1007/s00366-026-02312-6","DOIUrl":"10.1007/s00366-026-02312-6","url":null,"abstract":"Fast numerical predictions have become an indispensable component of modern engineering design workflows, whether in interactive design within computer-aided design (CAD) environments or in multi-query numerical tasks such as design optimization and uncertainty quantification. Depending on the context, \"fast\" may refer to near real-time predictions within a few seconds, or simply to methods that are significantly faster than high-fidelity simulations, for example those based on the finite element method (FEM). With the aim of providing a tool that not only enables such accelerated predictions but also integrates seamlessly into established workflows, we introduce the concept of IGANets. IGANets are spline-based, physics-informed machine learning models that can be integrated naturally between CAD representations and numerical analysis tools, particularly those based on isogeometric analysis (IGA). Unlike purely data-driven approaches, IGANets do not inherently rely on precomputed training data; instead, they are formulated in a collocation setting directly from physical models. In this paper, we present the IGANets concept and demonstrate its feasibility through numerical experiments for the Poisson equation and linear elasticity. In addition, we investigate a multi-instance linear-elasticity setting with varying I-beam-like geometries and boundary conditions in order to assess the generalization capability of the framework. The results show that IGANets can predict solutions for previously unseen problem instances within the training range with improved accuracy as the number of training samples increases.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"42 3","pages":"102"},"PeriodicalIF":4.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13158258/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 differentiable variational model for structural self-contact and fracture. 结构自接触与断裂的可微变分模型。

IF 4.1 2区工程技术

Engineering with Computers Pub Date : 2026-01-01 Epub Date: 2026-02-19 DOI: 10.1007/s00366-026-02285-6

Mirko Ciceri, Charlie Aveline, Dilaksan Thillaithevan, Robert Hewson, Matthew Santer

{"title":"A differentiable variational model for structural self-contact and fracture.","authors":"Mirko Ciceri, Charlie Aveline, Dilaksan Thillaithevan, Robert Hewson, Matthew Santer","doi":"10.1007/s00366-026-02285-6","DOIUrl":"10.1007/s00366-026-02285-6","url":null,"abstract":"Numerical modelling of structural self-contact and crack propagation presents significant challenges due to the inherently discontinuous and non-differentiable nature of the underlying physical phenomena. Traditional contact models demand explicit definition and tracking of contact points, while fracture models often rely on predefined crack initiation sites, sharp interfaces, and re-meshing. This study introduces a novel framework that overcomes these limitations within a unified and numerically stable variational formulation. The contact phenomenon is described through the hyperelastic third medium contact model and fracture is represented by a phase field. Structures are embedded in a third medium that stiffens under compression, enabling the transfer of forces between structural members. Crack propagation occurs in regions in which it is energetically favourable for the system to evolve toward a fully damaged state, specifically where the critical energy release rate is exceeded. Careful treatment is required when coupling the two phenomena, particularly concerning the void material behaviour. This work presents an efficient and differentiable numerical model that captures both nonlinear phenomena within a unified framework. This framework will allow designers and engineers to efficiently analyse complex nonlinear structural behaviours, previously requiring separate models that involved pre-defined crack initiation sites and contact points. Lastly, the differentiable nature of the model facilitates straightforward future integration into topology optimisation pipelines, providing designers the ability to intentionally design for and leverage self-contact interactions and material failure as functional, performance-enhancing features.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"42 2","pages":"52"},"PeriodicalIF":4.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12920418/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147270075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Weak wall boundary conditions for compressible flows. 可压缩流动的弱壁边界条件。

IF 4.9 2区工程技术

Engineering with Computers Pub Date : 2026-01-01 Epub Date: 2026-01-14 DOI: 10.1007/s00366-025-02232-x

Monu Jaiswal, Manoj R Rajanna, Md Rhyhanul Islam, Ming-Chen Hsu, Yuri Bazilevs

{"title":"Weak wall boundary conditions for compressible flows.","authors":"Monu Jaiswal, Manoj R Rajanna, Md Rhyhanul Islam, Ming-Chen Hsu, Yuri Bazilevs","doi":"10.1007/s00366-025-02232-x","DOIUrl":"10.1007/s00366-025-02232-x","url":null,"abstract":"Weak imposition of essential boundary conditions (i.e., weak BCs) for the Navier-Stokes equations of incompressible flows allows a certain amount of controlled numerical flow slip on the solid surface. Numerical flow slip mimics the presence of a thin boundary layer that would otherwise need to be captured using a fine mesh resolution. As a result, weak BCs enable the use of coarser meshes near solid walls without sacrificing numerical solution accuracy, which significantly reduces the computational costs, especially for 3D, wall-bounded turbulent flows. However, weak BCs for compressible flows are not as well understood as those for the incompressible-flow case. In particular, numerical instabilities were observed in some cases where the weak BCs were simultaneously imposed for the velocity and temperature fields. In the present effort, to address these stability issues, we develop a methodology for the design of compressible-flow weak BC operators and demonstrate the improved performance of the resulting weak BC formulations using challenging 2D and 3D test cases.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"42 1","pages":"16"},"PeriodicalIF":4.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12804276/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145997632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Bridging experiments and defects' mechanics: a data-driven toolbox for configurational force analysis. 桥接实验和缺陷力学：一个数据驱动的构形力分析工具箱。

IF 4.9 2区工程技术

Engineering with Computers Pub Date : 2026-01-01 Epub Date: 2026-01-14 DOI: 10.1007/s00366-025-02262-5

Abdalrhaman Koko, Alya Abdelnour, Thorsten H Becker, T James Marrow

{"title":"Bridging experiments and defects' mechanics: a data-driven toolbox for configurational force analysis.","authors":"Abdalrhaman Koko, Alya Abdelnour, Thorsten H Becker, T James Marrow","doi":"10.1007/s00366-025-02262-5","DOIUrl":"10.1007/s00366-025-02262-5","url":null,"abstract":"Understanding the mechanical behaviour of defective materials is key to predicting failure and enhancing performance. Traditional fracture mechanics often requires assumptions about geometry and loading that are unavailable in experimental systems. We present a MATLAB-based computational toolbox that extracts configurational forces and mixed-mode SIFs directly from experimentally measured displacement or deformation gradient fields, like digital image/volume correlation and high (angular) resolution electron backscatter diffraction. The toolbox implements path-independent energy integrals, including the J- and M-integrals, and introduces a novel mode decomposition formulation that isolates mode I-III SIFs contributions without predefined specimen geometries, applied loads, or boundary conditions. Applications to microcracks, dislocations, and fatigue cracks demonstrate its robust, geometry-independent characterisation, which can enable data-driven analysis of defect behaviour in anisotropic and complex materials. The framework is material-agnostic in principle and operates directly on experimental fields; however, its current implementation assumes small-strain kinematics, making it most applicable to linear and anisotropic elastic and elastoplastic materials such as metals and ceramics.Supplementary information: The online version contains supplementary material available at 10.1007/s00366-025-02262-5.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"42 1","pages":"21"},"PeriodicalIF":4.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12804342/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145997599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Surrogate model-based multi-objective Bayesian optimisation of porous acoustic barriers. 基于代理模型的多孔声障多目标贝叶斯优化。

IF 4.9 2区工程技术

Engineering with Computers Pub Date : 2025-01-01 Epub Date: 2025-10-24 DOI: 10.1007/s00366-025-02221-0

Hassan Liravi, François-Xavier Bécot, Sakdirat Kaewunruen, Jelena Ninić

{"title":"Surrogate model-based multi-objective Bayesian optimisation of porous acoustic barriers.","authors":"Hassan Liravi, François-Xavier Bécot, Sakdirat Kaewunruen, Jelena Ninić","doi":"10.1007/s00366-025-02221-0","DOIUrl":"10.1007/s00366-025-02221-0","url":null,"abstract":"Many engineering challenges involve optimising multiple criteria that often represent conflicting targets, posing significant difficulties for standard methods like gradient-based algorithms. This complexity is especially important in the context of acoustic wave propagation, where noise barriers are designed to attenuate sound pressure level (SPL). Achieving optimal performance requires carefully balancing design factors such as shape and material selection with economic constraints, making the optimisation process both technically demanding and computationally intensive. This paper proposes the development of a noise prediction surrogate model for the multi-objective optimisation of acoustic barriers. This model is developed based on data set generated employing a two-dimensional singular boundary method. The optimisation process is conducted using a multi-objective Bayesian optimisation algorithm, which is applied to the problem of acoustic line source diffraction in the presence of a porous noise barrier. Two distinct barrier configurations are considered: a straight-walled barrier and a T-shaped barrier. With a view to reduce the SPL behind the noise barrier, the set of spanned parameters includes the SPL on the side of the barrier opposite to the source, barrier's height, cap length of T-shaped barrier, porosity, tortuosity, and airflow resistivity of the material, integrating both microstructural and macrostructural aspects into the optimisation. Surface impedance boundary condition is used in the model to represent the dissipation at the surface of the noise barrier. The results demonstrate that the proposed optimisation framework enables efficient exploration of trade-offs to achieve an optimal barrier design that balances acoustic performance, material cost, and shape constraints.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"41 6","pages":"4197-4224"},"PeriodicalIF":4.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12715089/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145803572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An application of hp-version finite element methods to quench simulation in axisymmetric MRI magnets. hp版有限元法在轴对称核磁共振磁体淬火模拟中的应用。

IF 4.9 2区工程技术

Engineering with Computers Pub Date : 2025-01-01 Epub Date: 2025-04-05 DOI: 10.1007/s00366-025-02126-y

M S Miah, P D Ledger, A J Gil, M Mallett, T-Q Ye

{"title":"An application of hp-version finite element methods to quench simulation in axisymmetric MRI magnets.","authors":"M S Miah, P D Ledger, A J Gil, M Mallett, T-Q Ye","doi":"10.1007/s00366-025-02126-y","DOIUrl":"https://doi.org/10.1007/s00366-025-02126-y","url":null,"abstract":"Magnetic Resonance Imaging (MRI) scanners employ superconducting magnets to produce a strong uniform magnetic field over the bore of the scanner as part of the imaging process. Superconductors are preferred, as they can generate the required field strengths without electrical resistance, but, to do this, the materials need to be cooled to very low temperatures, typically around 4.2 K. However, due to imperfections in the windings, cracks and small air gaps in the epoxy resin between the wires, heating can occur leading to a process known as magnet quench. During magnet quench, the magnet temperature rises quickly, and the magnet loses its superconductivity. This work presents an accurate numerical model for predicting magnet quench for axisymmetric MRI scanners by solving the coupled system of thermal, electromagnetic and circuit equations by means of a high order/hp-version finite element method where regions of high gradients are resolved with boundary layer elements. A series of numerical results are included to demonstrate the effectiveness of the approach.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"41 5","pages":"2765-2793"},"PeriodicalIF":4.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12647358/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145631058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 second-generation URANS model (STRUCT- $$epsilon $$ ) applied to a generic side mirror and its impact on sound generation 应用于通用侧后视镜的第二代 URANS 模型（STRUCT- $$epsilon $$ ）及其对声音产生的影响

IF 8.7 2区工程技术

Engineering with Computers Pub Date : 2024-09-18 DOI: 10.1007/s00366-024-02060-5

J. Munoz-Paniagua, J. García, E. Latorre-Iglesias

{"title":"A second-generation URANS model (STRUCT- $$epsilon $$ ) applied to a generic side mirror and its impact on sound generation","authors":"J. Munoz-Paniagua, J. García, E. Latorre-Iglesias","doi":"10.1007/s00366-024-02060-5","DOIUrl":"https://doi.org/10.1007/s00366-024-02060-5","url":null,"abstract":"A generic side mirror can be approximated to the combination of a half cylinder topped with a quarter of sphere. The flow structure in the wake of the side mirror is highly transient and the turbulence plays an important role affecting aeroacoustics through pressure fluctuation. Thus, this geometry is one of the test cases object of several numerical studies in recent years to assess the aerodynamic and aeroacoustic capabilities of the turbulence models. In this context, this study presents how the second-generation URANS closure STRUCT-(epsilon ) is able to properly predict the expected stagnation, flow separation and vortex shedding phenomena. Besides, the predictive accuracy for the noise generation mechanism is evaluated by comparing the spectra of the sound pressure level measured at several static pressure sensors with the numerical results obtained with the STRUCT-(epsilon ). The response of this turbulence model has exceeded that from other hybrid methods and is in good agreement with the results from Large-Eddy Simulations or the experiments. To conclude the paper, the applicability of STRUCT-(epsilon ) to construct a Spectral Proper Orthogonal Decomposition method that helps identifying the most energetic modes to appropriately capture the dominant flow structures is also introduced.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"76 1","pages":""},"PeriodicalIF":8.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A universal material model subroutine for soft matter systems 用于软物质系统的通用材料模型子程序

IF 8.7 2区工程技术

Engineering with Computers Pub Date : 2024-09-18 DOI: 10.1007/s00366-024-02031-w

Mathias Peirlinck, Juan A. Hurtado, Manuel K. Rausch, Adrián Buganza Tepole, Ellen Kuhl

{"title":"A universal material model subroutine for soft matter systems","authors":"Mathias Peirlinck, Juan A. Hurtado, Manuel K. Rausch, Adrián Buganza Tepole, Ellen Kuhl","doi":"10.1007/s00366-024-02031-w","DOIUrl":"https://doi.org/10.1007/s00366-024-02031-w","url":null,"abstract":"Soft materials play an integral part in many aspects of modern life including autonomy, sustainability, and human health, and their accurate modeling is critical to understand their unique properties and functions. Today’s finite element analysis packages come with a set of pre-programmed material models, which may exhibit restricted validity in capturing the intricate mechanical behavior of these materials. Regrettably, incorporating a modified or novel material model in a finite element analysis package requires non-trivial in-depth knowledge of tensor algebra, continuum mechanics, and computer programming, making it a complex task that is prone to human error. Here we design a universal material subroutine, which automates the integration of novel constitutive models of varying complexity in non-linear finite element packages, with no additional analytical derivations and algorithmic implementations. We demonstrate the versatility of our approach to seamlessly integrate innovative constitutive models from the material point to the structural level through a variety of soft matter case studies: a frontal impact to the brain; reconstructive surgery of the scalp; diastolic loading of arteries and the human heart; and the dynamic closing of the tricuspid valve. Our universal material subroutine empowers all users, not solely experts, to conduct reliable engineering analysis of soft matter systems. We envision that this framework will become an indispensable instrument for continued innovation and discovery within the soft matter community at large.","PeriodicalId":11696,"journal":{"name":"Engineering with Computers","volume":"1 1","pages":""},"PeriodicalIF":8.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Multiphysics discovery with moving boundaries using Ensemble SINDy and peridynamic differential operator 利用集合 SINDy 和周动态微分算子发现具有移动边界的多物理场

IF 8.7 2区工程技术

Engineering with Computers Pub Date : 2024-09-16 DOI: 10.1007/s00366-024-02064-1

Ali Can Bekar, Ehsan Haghighat, Erdogan Madenci

引用次数: 0

A new kernel-based approach for solving general fractional (integro)-differential-algebraic equations 基于内核的求解一般分数（整数）-微分-代数方程的新方法

IF 8.7 2区工程技术

Engineering with Computers Pub Date : 2024-09-15 DOI: 10.1007/s00366-024-02054-3

Tayebeh Taheri, Alireza Afzal Aghaei, Kourosh Parand

引用次数: 0