Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria最新文献_第5页

An improved FEM-DEM coupling simulation for granular-media-based thin-wall elbow tube push-bending process 基于颗粒介质的薄壁弯头管推弯过程的改进FEM-DEM耦合模拟

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2023-01-01 DOI: 10.23967/j.rimni.2023.05.005

H. Liu, G. M, Z. Geng

引用次数: 0

An analytical solution to soil consolidation around a pile considering earthquake effect 考虑地震效应的桩周土体固结解析解

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2023-01-01 DOI: 10.23967/j.rimni.2023.05.007

Y. Zhang, J. Zhang, X. Xu

{"title":"An analytical solution to soil consolidation around a pile considering earthquake effect","authors":"Y. Zhang, J. Zhang, X. Xu","doi":"10.23967/j.rimni.2023.05.007","DOIUrl":"https://doi.org/10.23967/j.rimni.2023.05.007","url":null,"abstract":"In this paper, an analytical solution is developed to investigate soil consolidation around a pile under earthquake loading. The solution is validated using finite element method. The influence of various parameters on excess pore water pressure is analyzed. The results show that excess pore water pressure increases with depth and is positively correlated with n and Neq/N1, while negatively correlated with η, χ, kv, and td. The values of η, χ, kv, Neq/N1, and td affect excess pore water pressure during and after the earthquake, while the value of n only affects excess pore water pressure after the earthquake. The growth rate of excess pore water pressure during the earthquake is positively correlated with n, η, kv, and Neq/N1, and negatively correlated with χ and td. The dissipation rate of excess pore water pressure during the earthquake is positively correlated with η, χ, kv, Neq/N1, and td, and negatively correlated with n. Additionally, a formula for calculating the reconsolidation settlement of pile-soil foundation after an earthquake is proposed, and the effects of pile and soil parameters on pile-soil foundation reconsolidation settlement are analyzed. The results indicate that reconsolidation settlement can be divided into two stages: rapid settlement stage and slow settlement stage. The total settlement of the foundation is positively correlated with n, η, and Neq/N1, while negatively correlated with χ, kv, and td.","PeriodicalId":49607,"journal":{"name":"Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68782426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Consolidation of soil induced by pile installation considering disturbance effect 考虑扰动效应的桩基固结

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.03.008

P. Li, Z. Chen, Y. Ding

{"title":"Consolidation of soil induced by pile installation considering disturbance effect","authors":"P. Li, Z. Chen, Y. Ding","doi":"10.23967/j.rimni.2022.03.008","DOIUrl":"https://doi.org/10.23967/j.rimni.2022.03.008","url":null,"abstract":"In practice, the consolidation of soil around the pile has a great influence on the time-dependent bearing capacity of pile. However, most of the consolidation theory of soil around the pile neglects the disturbance effect of pile-driving on surrounding soil and regards the soil as homogeneous, which overestimates the consolidation efficiency of the soil, and obtains a higher pile bearing capacity. In view of this, a consolidation model of soil around a pipe pile considering soil disturbance effect is presented in this paper. Fourier transform and separation of variables are used to obtain the analytical solution, and then the solution is verified by degradation analysis and Finite Difference Method (FDM). Firstly, the radial and vertical distribution of excess pore pressure generated after pile-driving is analyzed. In the radial direction, the excess pore pressure decreases rapidly from the radius of pipe pile to the radius of the disturbed zone, then slowly decays to 0 from the radius of disturbed zone to the influencing radius of pipe pile. In the vertical direction, the excess pore pressure along the vertical direction grows linearly. Subsequently, the variation of the average excess pore pressure at the pile-soil interface with the permeability coefficient and radius of disturbance zone are analyzed. The permeability coefficient of disturbance zone has a remarkable negative effect on the excess pore pressure during the whole consolidation period. Increasing the radius of the disturbance zone will hinder the dissipation of the excess pore pressure in the intermediate and later stages. Finally, the validity of the proposed analytical solution is illustrated by comparing with the laboratory results.","PeriodicalId":49607,"journal":{"name":"Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68781508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Prony's method and matrix pencil method performance on determining the complex natural resonance frequencies of a linear system proony法和矩阵铅笔法在确定线性系统的复固有谐振频率方面表现良好

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.06.005

R. Barroso, Alfonso J. Zozaya Sahad

引用次数: 0

Influence of residual stress models prescribed in design codes for steel I-section behavior 设计规范中规定的残余应力模型对工字钢性能的影响

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.09.008

Í. Lemes, J. Silva, E. Batelo, R. Silveira

{"title":"Influence of residual stress models prescribed in design codes for steel I-section behavior","authors":"Í. Lemes, J. Silva, E. Batelo, R. Silveira","doi":"10.23967/j.rimni.2022.09.008","DOIUrl":"https://doi.org/10.23967/j.rimni.2022.09.008","url":null,"abstract":"Non-uniform cooling of steel cross-sections during the manufacturing process generates a state of residual stresses in the cross-section. Design codes describe the distribution of these stresses in different ways. This work aims to numerically investigate the influence of these models on the behavior of bare steel and steel-concrete composite sections by the curves: flexural stiffness-bending moment, moment-curvature and yield curves (initial and full yield). These procedures are important for the study of the simplified curves used in some methodologies of the refined plastic hinge method (RPHM) analysis. The study will use the strain compatibility method (SCM), where, if the axial strain of the cross-section point is known, the section stiffness is obtained using the tangential Young's modulus derived from the materials constitutive relationship. A fiber discretization algorithm is applied and the residual stresses are explicitly inserted into the fibers automatically. The methodology was calibrated using the moment-curvature relationship and the flexural stiffness-bending moment curve. These results were numerically stable and good convergence with literature data was obtained. In general, the residual stress model of the American standard (AISC, 2016) defines a larger elastic region within the interaction diagrams then European model (CEN, 2005). The results obtained showed that the initial yield curves for steel I-sections under minor axis bending require revision for application to RPHM, mainly due to the loss of symmetry in relation to the M axis in the normal force-bending moment (NM) interaction diagram.","PeriodicalId":49607,"journal":{"name":"Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68781948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2

Minimization of completion time variance in flowshops using genetic algorithms 基于遗传算法的流水作业完井时间方差最小化

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.05.002

I. Chaudhry, I. Elbadawi, A. Rafique, A. Boudjemline, M. Boujelbene, M. Usman, M. Aichouni

{"title":"Minimization of completion time variance in flowshops using genetic algorithms","authors":"I. Chaudhry, I. Elbadawi, A. Rafique, A. Boudjemline, M. Boujelbene, M. Usman, M. Aichouni","doi":"10.23967/j.rimni.2022.05.002","DOIUrl":"https://doi.org/10.23967/j.rimni.2022.05.002","url":null,"abstract":"The majority of the flowshop scheduling literature focuses on regular performance measures like makespan, flowtime etc. In this paper a flowshop scheduling problem is addressed where the objective is to minimize completion time variance (CTV). CTV is a non-regular performance measure that is closely related to just-in-time philosophy. A Microsoft Excel spreadsheet-based genetic algorithm (GA) is proposed to solve the problem. The proposed GA methodology is domain-independent and general purpose. The flowshop model is developed in the spreadsheet environment using the built-in formulae and function. Addition of jobs and machines can be catered for without the change in the basic GA routine and minimal change to the spreadsheet model. The proposed methodology offers an easy-to-handle framework whereby the practitioners can implement a heuristic-based optimization tool with the need for advanced programming tools. The performance of the proposed methodology is compared to previous studies for benchmark problems taken from the literature. Simulation experiments demonstrate that the proposed methodology solves the benchmark problems efficiently and effectively with a reasonable accuracy. The solutions are comparable to previous studies both in terms of computational time and solution quality.","PeriodicalId":49607,"journal":{"name":"Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68781737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Numerical Solution of Diffusion Equation using a Method of Lines and Generalized Finite Differences 用线法和广义有限差分法数值解扩散方程

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.06.003

G. Tinoco, F. Domínguez, J. Guzmán, J. Tinoco-Ruiz

引用次数: 0

Fractal dimension measured over areas and perimeters using “Box Counting” technique applied over a Mandelbrot figure. 分形维数测量的面积和周长使用“盒计数”技术应用于曼德布洛特图。

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.03.007

C. Acosta, F. Peñuñuri, O. Carvente

引用次数: 0

Experimental characterization and two-dimensional hydraulic-hydrologic modelling of the infiltration process through permeable pavements 透水路面入渗过程的实验表征和二维水力水文模型

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.03.012

M. Sanz-Ramos, G. Olivares, E. Bladé

{"title":"Experimental characterization and two-dimensional hydraulic-hydrologic modelling of the infiltration process through permeable pavements","authors":"M. Sanz-Ramos, G. Olivares, E. Bladé","doi":"10.23967/j.rimni.2022.03.012","DOIUrl":"https://doi.org/10.23967/j.rimni.2022.03.012","url":null,"abstract":"Permeable pavements are a common solution for wearing course layers in roads and urban areas. They are composed by highly porous materials with permeability several orders of magnitude above of the natural terrain. This work presents, on one hand, the experimental characterisation of the hydraulic behaviour of a permeable asphalt concrete wearing course layer and, on the other hand, the development and validation of a two-dimensional coupled hydraulic-hydrological distributed numerical model to reproduce the effect of the infiltration in the rainfall-runoff transformation and in the overland flow propagation processes. Experiments show linear and potential trends for permeability-hydraulic head relations when considering constant and variable hydraulic heads, respectively, reaching permeability up to 0.04 m/s for 1 m of hydraulic head. Experiments are reproduced numerically by incorporating new infiltration formulas, which consider the infiltration rate as a function of the hydraulic head, and a specific numerical scheme for properly dealing the mass conservation when negative values of the water depth may occur numerically due to high infiltration rates. This two-dimensional coupled hydraulic-hydrological distributed numerical model is a validated tool for simulating the effect of permeable pavements not only in the rainfall-runoff process, but also for the overland flow propagation.","PeriodicalId":49607,"journal":{"name":"Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68781626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 5

Structural design and performance analysis of sliding double-layer water injection distributor 滑动式双层注水分布器结构设计及性能分析

IF 0.5 4区工程技术

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI: 10.23967/j.rimni.2022.11.002

X. Zhou, H. Fang, Z. Zhao, X. Zhang, X. Ji

引用次数: 0