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

Nonlocal static modeling of laminated composite shells using peridynamic differential operator in a higher-order shear deformation framework 基于高阶剪切变形框架的复合材料层合壳非局部静力模拟

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-11 DOI: 10.1016/j.enganabound.2025.106384

Yonca Bab , Mehmet Dorduncu , Akif Kutlu , Bernd Markert

{"title":"Nonlocal static modeling of laminated composite shells using peridynamic differential operator in a higher-order shear deformation framework","authors":"Yonca Bab , Mehmet Dorduncu , Akif Kutlu , Bernd Markert","doi":"10.1016/j.enganabound.2025.106384","DOIUrl":"10.1016/j.enganabound.2025.106384","url":null,"abstract":"<div><div>This study investigates the flexural behaviour of the laminated composite shells in the framework of Higher-Order Shear Deformation Theory (HSDT) and Peridynamic Differential Operator (PDDO), namely PD-HSDT, for the first time. Laminated composite shell structures are widely used in aerospace, automotive, and marine industries due to their high strength-to-weight ratio and design flexibility. Therefore, understanding their mechanical behavior under various loading conditions is crucial for ensuring structural reliability and performance optimization. However, such structures may possess complex curvatures and highly heterogenous laminate stackings, leading to inaccurate numerical stress analyses. The HSDT successfully captures displacement and stress distributions as well as cross-sectional warping through higher-order functions exist in the kinematics. Moreover, the PDDO represents the local derivatives in their nonlocal form, making it well-suited for problems involving higher-order derivatives and discontinuities. The governing equations and boundary conditions of the HSDT are solved by using the PDDO to accurately achieve the stress and displacement fields in the laminated composite shells. The robustness of the PD-HSDT is established by considering various loading and boundary conditions. The proposed approach demonstrates high accuracy in stress and displacement predictions when validated against reference solutions available in existing literature. This indicates strong potential for extending the methodology to more complex loading scenarios and damage mechanisms in future studies.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106384"},"PeriodicalIF":4.2,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597210","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

Research on prediction method of rock uniaxial compressive strength based on interpretable INFO-Stacking model 基于可解释INFO-Stacking模型的岩石单轴抗压强度预测方法研究

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-10 DOI: 10.1016/j.enganabound.2025.106390

Jie Wang , Xinqiu Fang , Dexing He , Yang Song , Ningning Chen , Haotian Feng

{"title":"Research on prediction method of rock uniaxial compressive strength based on interpretable INFO-Stacking model","authors":"Jie Wang , Xinqiu Fang , Dexing He , Yang Song , Ningning Chen , Haotian Feng","doi":"10.1016/j.enganabound.2025.106390","DOIUrl":"10.1016/j.enganabound.2025.106390","url":null,"abstract":"<div><div>Uniaxial compressive strength (UCS) is essential for evaluating rock properties and ensuring stability in geotechnical and mining engineering, frequently applied in slope design, tunnel reinforcement, and mining operations. To overcome the limitations of traditional UCS testing, including high costs and lengthy procedures, this study presents an interpretable model grounded in the INFO-Stacking algorithm. The model, trained on 285 rock samples, incorporates variables such as porosity, Schmidt rebound hardness, P-wave velocity, and point load index, with UCS as the target output. We evaluated six machine learning models, both before and after INFO optimization, and developed a stacking ensemble model combining RF, XGBoost, CatBoost, and AdaBoost. The model demonstrated superior performance compared to traditional and individual models. SHAP(Shapley Additive Explanations) analysis clarified the significance of porosity and P-wave velocity, enhancing the model's interpretability. Additionally, a user-friendly graphical interface was created to facilitate UCS predictions in real-world engineering scenarios. The INFO-Stacking model achieved an <em>R²</em> of 0.952, <em>RMSE</em> of 9.975, and <em>MAE</em> of 7.349, providing a more accurate and efficient approach to UCS prediction and supporting engineering decision-making.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106390"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144595388","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 adaptive particle generation method 一种自适应粒子生成方法

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-10 DOI: 10.1016/j.enganabound.2025.106385

Kan Liu, Xiufeng Yang, Huan Li, M.M.A. Sohag, Yin Hong, E.M. Umana

{"title":"An adaptive particle generation method","authors":"Kan Liu, Xiufeng Yang, Huan Li, M.M.A. Sohag, Yin Hong, E.M. Umana","doi":"10.1016/j.enganabound.2025.106385","DOIUrl":"10.1016/j.enganabound.2025.106385","url":null,"abstract":"<div><div>The particle-based methods have been widely used in numerical simulations in recent years. However, there are only a few particle generation methods available for particle-based simulations, and the existing particle generation methods are either directly or indirectly based on lattices or meshes. This paper proposes an innovative adaptive particle generation method that eliminates the reliance on lattices or meshes. The adaptive particle generation method generates particles using particle splitting and merging algorithms, and then the particles will fill geometric shapes using particle shifting algorithm. The new method offers three key advantages: (1) it enables the generation of particles with uniform or adaptive resolutions for complex geometries; (2) the generated particles adaptively fit the geometries; (3) the volume of geometry is exactly conserved during the particle generation process. The adaptive particle generation method is firstly validated by generating particles of uniform and adaptive resolutions for different geometries. Then the adaptive particle generation method is validated by generating initial particles for SPH simulations of dam-break flow, oscillating drop and liquid sloshing.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106385"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597211","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 flexible solution for seepage problems integrating SBFEM and recursive polytree meshing 结合SBFEM和递归多树网格的渗流问题柔性求解方法

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-10 DOI: 10.1016/j.enganabound.2025.106389

Guoyang Yi , Degao Zou , Kai Chen , Mingliang Zhang , Shaoyun Pang

{"title":"A flexible solution for seepage problems integrating SBFEM and recursive polytree meshing","authors":"Guoyang Yi , Degao Zou , Kai Chen , Mingliang Zhang , Shaoyun Pang","doi":"10.1016/j.enganabound.2025.106389","DOIUrl":"10.1016/j.enganabound.2025.106389","url":null,"abstract":"<div><div>In this paper, a flexible analysis method for the seepage problem is proposed by improving the traditional scaled boundary finite element method (SBFEM) and automatically adapting the polytree-based refinement algorithms. Firstly, by embedding integration points inside the boundary element instead of the traditional boundary integration scheme, the dynamic evolution process of the free water surface inside the cell can be directly described, which overcomes the limitations of the traditional boundary integration method. Subsequently, the innovative integration of SBFEM into a static grid iterative framework avoids the problem of frequent re-meshing of conventional SBFEM due to free water surface motion. In order to take full advantage of the cross-scale meshing of SBFEM, adaptive refinement based on a polytree algorithm and a free surface position indicator is implemented, and the accuracy is dynamically controlled by error feedback. Then, the above algorithm is integrated into the finite element software GEODYNA based on object-oriented programming architecture. Finally, the correctness and effectiveness of the proposed method are verified by carrying out seepage analysis on the earth-rock dam. The results show that the proposed method can perform cross-scale analyses in critical regions, thus effectively improving the computational efficiency without affecting the solution accuracy.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106389"},"PeriodicalIF":4.2,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144595384","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

Shear deformable plate subjected to internal distortion by SGBEM 基于SGBEM的剪切变形板内部变形分析

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-08 DOI: 10.1016/j.enganabound.2025.106356

S.S. Terravecchia, M. Zito

{"title":"Shear deformable plate subjected to internal distortion by SGBEM","authors":"S.S. Terravecchia, M. Zito","doi":"10.1016/j.enganabound.2025.106356","DOIUrl":"10.1016/j.enganabound.2025.106356","url":null,"abstract":"<div><div>The Symmetric Galerkin Boundary Element Method (SGBEM) is applied to shear deformable plates of Mindlin’s type subjected to internal distortion.</div><div>In the present paper, the domain integral with strong or hypersingular kernel, pertaining to constant internal distortion, are transformed in boundary ones. In the Somigliana's Identity (S.I) of deformations, the domain integral presents a hypersingular kernel. This integral is subject to a regularization process, which makes it possible to divide it into two parts. The first part is evaluated as Cauchy Principal Value and divided into a regular part and a singular part; the latter is transformed into boundary integral using the Radial Integral Method (R.I.M). The second part of the original integral is transformed, using Gauss's theorem, in order to obtain a matrix of free domain terms called Bui Free Terms. These operations make it possible to replace the hypersingular integral of the S.I. of the deformations with a boundary one to which a constant term is added. The expressions thus obtained for the displacements and tractions are utilized for the evaluation of the load coefficient connected to internal distortion.</div><div>This strategy make it possible to evaluate the load coefficients avoiding considerable difficulties due to the geometry of the analyzed solid.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106356"},"PeriodicalIF":4.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580154","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

Adaptive RBF-FD meshless solution of 3D fluid flow and heat transfer problems 三维流体流动与传热问题的自适应RBF-FD无网格解

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-08 DOI: 10.1016/j.enganabound.2025.106367

Luca Bacer , Riccardo Zamolo , Davide Miotti , Enrico Nobile

{"title":"Adaptive RBF-FD meshless solution of 3D fluid flow and heat transfer problems","authors":"Luca Bacer , Riccardo Zamolo , Davide Miotti , Enrico Nobile","doi":"10.1016/j.enganabound.2025.106367","DOIUrl":"10.1016/j.enganabound.2025.106367","url":null,"abstract":"<div><div>This paper describes an adaptive approach for the solution of 3D steady and incompressible flows with the RBF-FD (Radial Basis Function-Finite Difference) meshless method. This method relies on a set of scattered nodes in the domain instead of a traditional mesh data structure. The lack of connectivity information and the absence of the mesh generation make the RBF-FD method particularly advantageous for the accurate numerical solution of many problems of engineering interest. Furthermore, automatic node generation is possible thanks to many algorithms that recently have been proposed. However, as it happens for mesh-based methods, the accurate solution of partial differential equations usually require proper node distributions with higher node density in specific areas. The approach described in this paper allows the re-generation of the entire node distribution in order to minimize some error indicator by automatically adjusting local node density depending on the domain and physical problem. The main contribution of this work is the introduction of some original error indicators which are used for the aforementioned adaptive node generation and the assessment of their effect on accuracy. Results show good convergence properties and highlight some differences in the behavior of the different adaptive approaches in the spatial error distribution.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106367"},"PeriodicalIF":4.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571949","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

Simulation of bending problems of magnetoelectroelastic nanoplates on Pasternak elastic foundation by the meshless backward substitution method 基于无网格倒向代换法的帕斯捷尔纳克弹性地基上磁电弹性纳米板弯曲问题模拟

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-08 DOI: 10.1016/j.enganabound.2025.106373

Yitong Xu , Zhichao Ding , Ji Lin , Jun Lu , C.S. Chen

引用次数: 0

Solution of the Stokes free boundary problem using boundary elements 用边界元求解Stokes自由边界问题

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-08 DOI: 10.1016/j.enganabound.2025.106364

Alfredo Canelas , Jean R. Roche

引用次数: 0

Multi-field FEM-PD model for non-uniform corrosion and damage evolution in reinforced concrete under chloride-sulfate attack 氯化物-硫酸盐侵蚀下钢筋混凝土非均匀腐蚀与损伤演化的多场FEM-PD模型

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-07 DOI: 10.1016/j.enganabound.2025.106386

Yujiao Liu , Wanjin Li , Jinwei Guan , Xin Zhou , Li Guo

{"title":"Multi-field FEM-PD model for non-uniform corrosion and damage evolution in reinforced concrete under chloride-sulfate attack","authors":"Yujiao Liu , Wanjin Li , Jinwei Guan , Xin Zhou , Li Guo","doi":"10.1016/j.enganabound.2025.106386","DOIUrl":"10.1016/j.enganabound.2025.106386","url":null,"abstract":"<div><div>Accurately predicting the longevity of reinforced concrete structures in multi-factor corrosive environments remains a critical challenge in civil engineering due to the complex interactions among multi-physical fields and ionic species. In this work, an innovative computational framework, the Multi-Field FEM-Peridynamic (MF FEM-PD) model, was developed to integrate a nonlinear damage evolution algorithm for the concrete matrix with time-dependent corrosion kinetics for steel reinforcement. The proposed model systematically addresses two predominant deterioration mechanisms: chloride-induced steel corrosion and sulfate-attack-induced concrete degradation. The coupled effects of concrete expansion damage, rust layer development, and progressive material deterioration are explicitly incorporated. According to the obtained numerical simulating results, the accuracy and effectiveness of the proposed MF FEM-PD model were validated through five comparisons with both published experimental results and corresponding theoretical solutions, demonstrating a strong capability in capturing multi-physics coupling mechanisms. Moreover, parametric analysis revealed a concentration-dependent dual effect of sulfate ions. Compared to solutions containing only chloride ions, the addition of sulfate at a concentration of 0.1 mol/m³ in a chloride-rich environment significantly inhibited corrosion propagation, whereas higher sulfate concentrations of 0.5 mol/m³ substantially accelerated deterioration within concrete pore environments.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106386"},"PeriodicalIF":4.2,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570207","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 novel rotational spring model to enrich the ordinary state-based peridynamic method with bond rotation and elastic-plastic effects in steel plates 提出了一种新的旋转弹簧模型，丰富了普通的基于状态的周动力学方法，考虑了钢板的键合旋转和弹塑性效应

IF 4.2 2区工程技术

Engineering Analysis with Boundary Elements Pub Date : 2025-07-07 DOI: 10.1016/j.enganabound.2025.106378

Morteza Khomami Abadi, Mohammad Zaman Kabir

{"title":"A novel rotational spring model to enrich the ordinary state-based peridynamic method with bond rotation and elastic-plastic effects in steel plates","authors":"Morteza Khomami Abadi, Mohammad Zaman Kabir","doi":"10.1016/j.enganabound.2025.106378","DOIUrl":"10.1016/j.enganabound.2025.106378","url":null,"abstract":"<div><div>This paper introduces a novel model based on the finite element method, incorporating a new rotational spring model to consider bond rotation effects. This model is added to an elastic-plastic model, which improves the peridynamic method for more accurate analysis of ductile materials. In this model, the bond between two material points is discretized into two sub-elements on either side of the rotational spring. The energy equations are divided into two elastic and plastic components. The bond energy between material points is determined by calculating the energy of the spring and sub-elements, as well as the volumetric and deviatoric deformation energy. The accuracy and efficiency of the proposed model are compared with the finite element method by analyzing several scenarios of intact and cracked steel plates under shear loading. In addition, several experimental Arcan tests and micromechanical analyses were performed to validate the results. The effects of different parameters, such as micro-crack growth path, horizon size, and number of material points, are examined. The enriched OSB-PD model, which incorporates rotational spring effects and elastic-plastic equations, accurately predicts the ductile behavior of steel plates, with a maximum error of <3.73 % compared to experimental results in the worst case.</div></div>","PeriodicalId":51039,"journal":{"name":"Engineering Analysis with Boundary Elements","volume":"179 ","pages":"Article 106378"},"PeriodicalIF":4.2,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570314","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