Engineering Analysis with Boundary Elements最新文献_第10页

Forward and inverse problem solvers for Reynolds-averaged Navier–Stokes equations with fractional Laplacian 分数阶拉普拉斯reynolds -average Navier-Stokes方程的正解和逆解

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-12 DOI: 10.1016/j.enganabound.2025.106193

Rui Du , Tongtong Zhou , Guofei Pang

引用次数: 0

Three-dimensional seepage analysis for the tunnel in nonhomogeneous porous media with physics-informed deep learning 基于深度学习的非均匀多孔介质隧道三维渗流分析

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-12 DOI: 10.1016/j.enganabound.2025.106207

Shan Lin , Miao Dong , Hongming Luo , Hongwei Guo , Hong Zheng

{"title":"Three-dimensional seepage analysis for the tunnel in nonhomogeneous porous media with physics-informed deep learning","authors":"Shan Lin , Miao Dong , Hongming Luo , Hongwei Guo , Hong Zheng","doi":"10.1016/j.enganabound.2025.106207","DOIUrl":"10.1016/j.enganabound.2025.106207","url":null,"abstract":"<div><div>Tunnel engineering is one of the hot spots of research in the field of geotechnical engineering, and the seepage analysis of tunnels is an important research direction at present. In recent years, physics-informed deep learning based on priori fusion data has become a cross-disciplinary hotspot for solving forward and inverse problems based on partial differential equations (PDEs). In this paper, physics-informed deep learning (PIDL) is introduced to the solution of PDEs for Geotechnical Engineering problems. This paper builds relevant theoretical models and systematically discusses the issues associated with applying this method to the numerical simulation of tunnel seepage, starting from the mathematical theory of physics-informed deep learning. The results of this paper are compared with the analytical solution and the finite element method, and the generalization accuracy of the neural network is tested by replacing different boundary conditions, which verifies the feasibility of the physics-informed deep learning method for solving the seepage problem of tunnels with nonhomogeneous porous media. The results of several typical numerical examples show that the method has the advantages of meshless and refined simulation.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106207"},"PeriodicalIF":4.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143600793","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 high-speed numerical simulation method for diverse boundary conditions for real time applications unleashing MeshGraphNet 基于网格graphnet的实时应用中多种边界条件的高速数值模拟方法

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-11 DOI: 10.1016/j.enganabound.2025.106204

Avishek Mukherjee , Surjya Kanta Pal , Debashish Chakravarty

{"title":"A high-speed numerical simulation method for diverse boundary conditions for real time applications unleashing MeshGraphNet","authors":"Avishek Mukherjee , Surjya Kanta Pal , Debashish Chakravarty","doi":"10.1016/j.enganabound.2025.106204","DOIUrl":"10.1016/j.enganabound.2025.106204","url":null,"abstract":"<div><div>The study presents an adapted MeshGraphNet for real-time field prediction in digital twins, surpassing traditional FEM in efficiency and boundary condition adaptability but falling short of real-time computational demands. Trained with true labels, MeshGraphNet accurately predicts nodal variables on coarse graphs and reduces simulation time through parallel sub-mesh processing. Applied to a 1D mesh, it solved an ordinary differential equation with similar FEM accuracy for finer meshes, retaining high precision only on trained resolutions, highlighting limited generalizability. Time complexity was evaluated by plotting solution timings against node count and analyzing trend line slopes. MeshGraphNet predicts the solutions, achieving 97–100 % accuracy through subdivision, with a slope of 4 × 10<sup>−5</sup> whereas for FEM it is 0.117, which is lagging due to its calculative nature. With 8-core processing, the time ratio of prediction of proposed method is 5 × 10<sup>−6</sup>. In a thermal case, accuracy reached 98–100 %, while maintaining a time consumption slope of 2 × 10<sup>−6</sup> and 2 × 10<sup>−5</sup> with and without sub-mesh division respectively. In solid mechanics case, subdivision reduced RMSE from 0.14 to 0.02 with a slope of 0.1803,.003, and 3 × 10<sup>−5</sup> for FEM, without and with subdivision respectively. This efficient processor utilization paves the way for real-time execution of complex simulations using the proposed method.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106204"},"PeriodicalIF":4.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592949","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

An efficient midpoint and Richardson extrapolation-based rapid Quadrature for fracture problems using Radial Point Interpolation Method 基于径向点插值方法的高效中点和Richardson外推的裂缝问题快速求积分

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-11 DOI: 10.1016/j.enganabound.2025.106188

Sai Naga Kishore Vutla , Thamarai Selvan Vasu , Jeyakarthikeyan P.V.

{"title":"An efficient midpoint and Richardson extrapolation-based rapid Quadrature for fracture problems using Radial Point Interpolation Method","authors":"Sai Naga Kishore Vutla , Thamarai Selvan Vasu , Jeyakarthikeyan P.V.","doi":"10.1016/j.enganabound.2025.106188","DOIUrl":"10.1016/j.enganabound.2025.106188","url":null,"abstract":"<div><div>An efficient numerical integration technique, namely the Element Midpoint(EM) Method, is successfully applied to meshless methods to solve the fracture problem, which is modeled using the Radial point interpolation method. The results were compared with standard <span><math><mrow><mo>(</mo><mn>3</mn><mo>×</mo><mn>3</mn><mo>)</mo></mrow></math></span> points Gauss quadrature and <span><math><mrow><mo>(</mo><mn>6</mn><mo>×</mo><mn>6</mn><mo>)</mo></mrow></math></span> points Gauss quadrature in 2D to validate the presented numerical methods. To demonstrate the efficiency and effectiveness of this method, four benchmark problems, Edge Crack, Center Crack, and Inclined Edge Crack problem under tensile load and Edge Crack problem under shear load, are considered to solve and further calculate Stress Intensity Factor (SIF). Based on the formulation and examples, a comparative study on accuracy and computational time has been presented to show the effectiveness of the integration technique against complex problems like fracture.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106188"},"PeriodicalIF":4.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592954","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

Extended discontinuous deformation analysis for brittle failure simulation of transversely isotropic rocks under static and dynamic conditions 横向各向同性岩石静、动态脆性破坏模拟的扩展不连续变形分析

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-10 DOI: 10.1016/j.enganabound.2025.106195

Qinglong Deng , Fei Zheng , Zhi Li , Yu-Yong Jiao

{"title":"Extended discontinuous deformation analysis for brittle failure simulation of transversely isotropic rocks under static and dynamic conditions","authors":"Qinglong Deng , Fei Zheng , Zhi Li , Yu-Yong Jiao","doi":"10.1016/j.enganabound.2025.106195","DOIUrl":"10.1016/j.enganabound.2025.106195","url":null,"abstract":"<div><div>Discontinuous numerical methods have been widely applied to investigate rock deformation and failure behavior in rock engineering scenarios such as tunnel excavation and oil/gas exploitation. Compared to discontinuous numerical methods with explicit formulations, discontinuous deformation analysis (DDA) has the advantages of unconditional stability and strict contact convergence with its implicit formulation. However, it lacks proper implementation of specific models for mechanical analysis of layered rocks. To solve this problem, DDA is extended with transversely isotropic constitutive models. With the sub-block and artificial joints (bond) strategy, a transversely isotropic constitutive model is incorporated by solving the global motion equation in a local coordinate system. The strength anisotropy caused by the rock matrix and discontinuities is considered by adding the transversely isotropic failure criteria characterized by the sub-block stress state. The feasibility of modeling elastic and strength behavior is validated by conducting a series of numerical uniaxial compression and direct tensile tests. The proposed approach is further applied to investigate the mechanical response and fracturing characteristics under both quasi-static and dynamic loading conditions, and its accuracy is verified by comparing the experimental results in the uniaxial compression (UC) tests and split Hopkinson pressure bar (SHPB) tests.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106195"},"PeriodicalIF":4.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592953","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

Real-time prediction method of three-dimensional flow field for pumping station units operation under geometrically variable conditions based on reduced-order model and machine learning 基于降阶模型和机器学习的几何可变条件下泵站机组运行的三维流场实时预测方法

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-09 DOI: 10.1016/j.enganabound.2025.106205

Chao Wang , Yaofei Zhang , Sherong Zhang , Xiaohua Wang

{"title":"Real-time prediction method of three-dimensional flow field for pumping station units operation under geometrically variable conditions based on reduced-order model and machine learning","authors":"Chao Wang , Yaofei Zhang , Sherong Zhang , Xiaohua Wang","doi":"10.1016/j.enganabound.2025.106205","DOIUrl":"10.1016/j.enganabound.2025.106205","url":null,"abstract":"<div><div>In large-scale water diversion projects, the rapid and accurate evaluation of pumping station unit performance is crucial to ensure that flow rates meet delivery requirements. Computational fluid dynamics (CFD) is effective in analyzing unit performance but is constrained by its high computational complexity and time consumption. Reduced-order models (ROMs) partially alleviate these issues; however, their application is restricted in scenarios involving geometric variability, such as adjustable blade angles, where re-simulation after mesh adjustments leads to inconsistent node configurations. To address these limitations, this study proposes an efficient method for predicting three-dimensional flow fields under varying geometric conditions. A unified snapshot matrix, constructed using interpolation and CFD data, ensures consistent data representation across different geometries. Machine learning is combined with ROMs to achieve efficient and accurate flow field predictions. Compared to the 600.84 s required by traditional CFD simulations, the proposed method reduces computation time to just 1.67 s while maintaining an accuracy of over 90 %. This approach resolves the computational and geometric challenges of traditional CFD and ROMs, providing an efficient solution for real-time evaluation of pumping station unit performance Moreover, it provides a foundation for developing digital twin systems to enhance decision-making efficiency in pumping station management.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106205"},"PeriodicalIF":4.2,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578326","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

An improved numerical manifold method for stability of heterogeneous gravity dams 非均质重力坝稳定性的改进数值流形法

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-09 DOI: 10.1016/j.enganabound.2025.106202

Yujie Xu , Yuan Wang , Lingfeng Zhou , Qi Dong

{"title":"An improved numerical manifold method for stability of heterogeneous gravity dams","authors":"Yujie Xu , Yuan Wang , Lingfeng Zhou , Qi Dong","doi":"10.1016/j.enganabound.2025.106202","DOIUrl":"10.1016/j.enganabound.2025.106202","url":null,"abstract":"<div><div>In the study of the stability of gravity dam, the situation of dam and rock mass is complicated, there may be pore water and various kinds of heterogeneous materials to affect the stability of rock mass, among which the deformation and failure of the dam cannot be ignored. In this paper, an improved high-order covering function is applied to the Numerical Manifold Method (NMM), and the Hermite form weight function is used, which not only improves computational accuracy but also facilitates preprocessing. In elastoplastic analysis, a modified Mohr-Coulomb criterion is introduced, which can consider both tensile and shear failure, and consider the distribution of plastic zone more comprehensively. In addition, a comprehensive calculation method for safety factors considering regional damage is proposed. Based on the improved NMM, the gravity dam is simulated, and the physical response of two various actions of water to gravity dam is discussed. It is fully proved that the improved NMM can accurately calculate the hydraulic and mechanical field, and can effectively solve the discontinuity problem of some physical quantities. At the same time, considering the rationality of seepage volume force and the method of considering regional safety factor is of practical significance in engineering.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106202"},"PeriodicalIF":4.2,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578325","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

Singular layer PINN methods for steep reaction–diffusion equations in a smooth convex domain 光滑凸域陡峭反应扩散方程的奇异层PINN方法

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-07 DOI: 10.1016/j.enganabound.2025.106178

Chang-Yeol Jung , Junghwa Kim , Eaint Phoo Ngon

引用次数: 0

Nonlinear numerical assessment of damped oscillation of SMA Timoshenko curved beams under impulsive loading SMA Timoshenko弯曲梁在脉冲荷载作用下阻尼振荡的非线性数值评估

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-07 DOI: 10.1016/j.enganabound.2025.106199

Ali Cheraghback , M. Botshekanan Dehkordi , Y. Kiani

{"title":"Nonlinear numerical assessment of damped oscillation of SMA Timoshenko curved beams under impulsive loading","authors":"Ali Cheraghback , M. Botshekanan Dehkordi , Y. Kiani","doi":"10.1016/j.enganabound.2025.106199","DOIUrl":"10.1016/j.enganabound.2025.106199","url":null,"abstract":"<div><div>Due to the many applications of shape memory alloys (SMAs) to make the structures more intelligent, these materials are getting great attention of researchers. Meanwhile, the nonlinear dynamic analysis of curved beams made of SMAs has not been investigated so far. Therefore, this work focuses on a nonlinear dynamic analysis of SMA curved beams under transverse impulse loading taking into account the pseudo-elastic behavior of SMAs. It is worth noting that both material and geometrical nonlinearities of the SMA curved beam are considered in this study. In order to model the nonlinear behavior of SMAs, the Lagoudas model is employed and for the mathematical modeling of the curved beam the Timoshenko beam theory under the assumption of von Karman nonlinear strains is used. Then, by employing the Hamilton principle, the governing equations of the structure are extracted, while the nonlinear kinematic equations of SMAs are coupled with the governing equations of the curved beam. To solve these coupled nonlinear equations, the numerical technique of differential quadrature method (DQM) along with Newmark's time integration scheme is employed. In this regard, the return mapping algorithm in conjunction with the Newton–Raphson method is employed to solve the nonlinear terms of equations. The quick convergence and high accuracy of the proposed formulation are achieved by the analysis of different examples. After that, some novel results are presented by investigating the influence of different types of boundary conditions, radius of curvature, angle of curvature and thickness of beam on the transient damped response, hysteresis loops and also martensite phase transformation of the SMA curved beams.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106199"},"PeriodicalIF":4.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563735","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 computationally efficient peridynamic framework for modeling damage in viscoelastic fiber-reinforced lamina 一种计算效率高的粘弹性纤维增强板损伤周动力模型

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-03-06 DOI: 10.1016/j.enganabound.2025.106196

Alireza Masoumi , Amirreza Moradi , Mohammad Ravandi , Manouchehr Salehi

{"title":"A computationally efficient peridynamic framework for modeling damage in viscoelastic fiber-reinforced lamina","authors":"Alireza Masoumi , Amirreza Moradi , Mohammad Ravandi , Manouchehr Salehi","doi":"10.1016/j.enganabound.2025.106196","DOIUrl":"10.1016/j.enganabound.2025.106196","url":null,"abstract":"<div><div>A novel computational framework based on modified bond-based peridynamics is proposed for viscoelastic laminas. The framework accurately captures deformations, damage initiation, and propagation under mechanical and thermal loads. It reduces numerical complexity by directly assessing viscoelastic strains each time step, eliminating real-time increment constraints. Constitutive component models, including viscoelastic Prony series and lamina stiffness matrices, are integrated into a 2D formulation. To address the limitations of the adaptive dynamic relaxation (ADR) method in modeling high-rate phenomena, an innovative ADR variant with an infinitesimal steady time step is introduced, enabling accurate capture of thermoviscoelastic creep-recovery responses above glass transition temperatures. Model validation against literature data, analytical solutions, and finite element models demonstrates accurate predictions of thermoviscoelastic responses, lamina deformations, damage initiation, and propagation patterns. Stress-strain diagrams reveal an inverse relationship between fiber orientation and stress peaks. The framework's efficiency makes it suitable for modeling complex viscoelastic composites and delamination damage. Its capabilities enable high-fidelity virtual testing and design of advanced composites under multi-axial viscoelastic conditions.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"175 ","pages":"Article 106196"},"PeriodicalIF":4.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563150","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