Latin American Journal of Solids and Structures最新文献_第6页

Theoretical Investigation on Stiffness and Vibration Characteristics of Laminated Beams with Uniformly Vertical Displacement 具有均匀竖向位移的叠合梁刚度和振动特性的理论研究

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78257035

X. Liang, Bo Chen, Wenrui He

引用次数: 0

A generalized finite element interface method for mesh reduction of composite materials simulations 复合材料模拟网格缩减的广义有限元界面法

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78257273

Gelson de Sousa Alves, F. Evangelista Junior, Guilherme Oliveira Ferraz de Paiva

引用次数: 0

Theoretical and computational simulation of the effect of the number of intermediate diaphragms on the live load distribution factors and structural response of a precast girder bridge 中间隔板数目对预制梁桥活载分布系数及结构响应影响的理论与计算模拟

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78257120

José Miguel Parra Benítez, J. Benjumea, V. Haach

{"title":"Theoretical and computational simulation of the effect of the number of intermediate diaphragms on the live load distribution factors and structural response of a precast girder bridge","authors":"José Miguel Parra Benítez, J. Benjumea, V. Haach","doi":"10.1590/1679-78257120","DOIUrl":"https://doi.org/10.1590/1679-78257120","url":null,"abstract":"Intermediate diaphragms (ID) in bridges with precast girders are intended to improve load distribution among girders. Despite this, their efficacy has been doubted recently due to the complex construction tasks needed to join them to the girders. Accordingly, this work aimed to determine the effect of the number of IDs on the distribution of vertical loads and girders response of a simply supported bridge. Four bridge layouts (0, 1, 2, and 3 IDs) were analyzed using 3D computational grillage models. The load distribution factors from the models were compared to those calculated using the Engesser-Courbon and Fauchart methods to determine the latter’s accuracy in capturing the effect of the number of IDs. Moreover, the girders responses under the live loads in the current Colombian and Brazilian bridge design codes were assessed. The results show that the IDs have a more significant effect on the load distribution and deflection of interior girders than the exterior girders. Additionally, increasing the number of IDs reduced the maximum shear and torque while the bending moment and deflections remained nearly constant.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":"26 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67620342","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

Comparison of Seismic Response Corner Beam-Column Joint with and without Fuse Bars Under In-Plane Lateral Cyclic Loading 面内横向循环荷载作用下带与不带保险丝的转角梁柱节点地震响应比较

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78256581

Nurfarhana Diyana Hadi, N. Hamid, Ili Farhana Azmi, R. Hassan, Y. Sutopo, B. Chao, Nurul Azmi Zainuddin

{"title":"Comparison of Seismic Response Corner Beam-Column Joint with and without Fuse Bars Under In-Plane Lateral Cyclic Loading","authors":"Nurfarhana Diyana Hadi, N. Hamid, Ili Farhana Azmi, R. Hassan, Y. Sutopo, B. Chao, Nurul Azmi Zainuddin","doi":"10.1590/1679-78256581","DOIUrl":"https://doi.org/10.1590/1679-78256581","url":null,"abstract":"Two full-scale corner beam-column joints with and without fuse bars were designed, constructed, tested, analyzed and modeled under in-plane lateral cyclic loading presented herein. The first specimen was designed using Eurocode 8 and equipped with four fuse bars. Second specimen was designed using BS8110 (non-seismic code of practice) with corbel. All the specimens have similar size of foundation beams, columns and beams. Visual observation during testing showed that specimen with fuse bars suffered less damage as compare with specimen without fuse bars. Furthermore, specimen with fuse bars has higher lateral strength capacity, stiffness, ductility and equivalent viscous damping than specimen without fuse bars. Finally, there is good agreement of lateral strength capacity, ductility, stiffness and equivalent viscous damping which lies between 2% and 20% between experiment and modeling hysteresis loops. Thus, it is recommended that fuse bar as a green structural material can be installed inside the corner beam-column joint for RC buildings to cater strong earthquakes in high seismic regions.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67618408","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

Shear contribution on viscoelastic behavior of beams modeled using plane frame elements with Reissner kinematics 基于Reissner运动学的平面框架单元对梁粘弹性特性的剪切贡献

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78256709

Juliano dos Santos Becho, M. Greco, Daniel Nelson Maciel

{"title":"Shear contribution on viscoelastic behavior of beams modeled using plane frame elements with Reissner kinematics","authors":"Juliano dos Santos Becho, M. Greco, Daniel Nelson Maciel","doi":"10.1590/1679-78256709","DOIUrl":"https://doi.org/10.1590/1679-78256709","url":null,"abstract":"The development of a numerical formulation is presented to describe viscoelastic behavior considering shear effects. The nonlinear positional formulation of the Finite Element Method is used considering plane frame elements with Reissner kinematics. The description of the viscoelastic behavior is considered through the adoption of a stress-strain relation based on Boltzmann rheological model. The used kinematics allows to describe the decoupling between the rotations and the displacements in element cross-sections. This approach allows to evaluate the contribution of shear effects in viscoelastic behavior in an original way. Based on the developments and the results obtained, it is possible to observe that strains and displacements due to viscoelastic behavior are significantly superior to the results obtained considering Bernoulli-Euler kinematics hypothesis. It is possible to notice a better agreement between the obtained numerical results and the results in the literature. Results obtained from the developed formulation allow the assessment of the shear effects on the viscoelastic behavior of plane frames.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67619113","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

A Novel Sliding Mode Control Algorithm for an Active Suspension System Considering with the Hydraulic Actuator 一种考虑液压作动器的主动悬架滑模控制新算法

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78256883

Duc Ngoc Nguyen, T. Nguyen, N. Dang

{"title":"A Novel Sliding Mode Control Algorithm for an Active Suspension System Considering with the Hydraulic Actuator","authors":"Duc Ngoc Nguyen, T. Nguyen, N. Dang","doi":"10.1590/1679-78256883","DOIUrl":"https://doi.org/10.1590/1679-78256883","url":null,"abstract":"The suspension system has the role of regulating and extinguishing oscillations in the vehicle. To improve stability and comfort, the active suspension system is proposed to replace the passive suspension system. There are many algorithms used for active suspension system control, such as PID, LQR, Fuzzy, etc. Among them, the nonlinear control method which uses the SMC algorithm gives a stable performance. This research proposes the use of the SMC algorithm to control the operation of the active suspension system equipped with a quarter dynamics model. The process of linearization of the hydraulic actuator is presented in the paper. As a result of the simulation, the values of displacement and acceleration of the sprung mass were significantly reduced when the vehicle used the active suspension system controlled by the SMC algorithm. The SMC controller established in this paper provides stability in many situations. Therefore, the vehicle's smoothness and comfort have been significantly improved. In the future, intelligent algorithms can be combined with SMC algorithms to improve the efficiency of the controller.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67619375","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: 16

The Impact of the Cracks on the Harmonic Response of Stiffened Steel Plates 裂纹对加筋钢板谐波响应的影响

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78256790

Oguzhan Das, Can Gonenli

引用次数: 3

Analysis of the Effective Dynamic Properties of Particulate Composites with Respect to Constituent Properties 基于组分性能的颗粒复合材料有效动态性能分析

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78256893

Mohammad Rahimzadeh

{"title":"Analysis of the Effective Dynamic Properties of Particulate Composites with Respect to Constituent Properties","authors":"Mohammad Rahimzadeh","doi":"10.1590/1679-78256893","DOIUrl":"https://doi.org/10.1590/1679-78256893","url":null,"abstract":"The propagation of longitudinal and shear elastic waves through a multi-phase material was studied and the effective elastic properties of the medium were evaluated. The distribution of the reinforcing inclusions was considered random throughout the matrix. The effective dynamic properties of the composites, including their effective bulk and shear moduli and effective densities, were examined along with the effective phase velocity and attenuation of the incident P and S waves. The Sabina – Willis model was employed to study the wave propagation behavior, and the model performance was analyzed through comparison with experimental data from the literature. The results indicated that wave propagation significantly depended on the physical and mechanical properties of inclusions relative to those of the matrix and the normalized wave number of the propagated elastic wave. Moreover, despite the fact that the elastic properties of the incidence in the P and S waves exhibited a similar trend, their values differed significantly. The results can serve as a design criterion for composite materials under dynamic loading.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67619576","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

Collapse Resistance Model and Deformation Mechanism of Shear Wall Replacement 剪力墙置换抗倒塌模型及变形机理

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78257189

Lei Qi, Xuansheng Cheng, Shanglong Zhang

引用次数: 0

Automatic Form-finding of N-4 Type Tensegrity Structures N-4型张拉整体结构的自动找形

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2022-01-01 DOI: 10.1590/1679-78256735

Xiaoming Yu, Yinghua Yang, Ya-dong Ji

引用次数: 0