Advances in Materials Research-An International Journal最新文献

Correlation of strength development of RCA in quaternary blended cementitious system 第四系共混胶凝体系中RCA强度发展的相关性研究

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-09-01 DOI: 10.12989/AMR.2021.10.3.211

M. Sastri, K. Rao, V. Bhikshma

引用次数: 0

Application of an image processing-based algorithm for river-side granular sediment gradation distribution analysis 基于图像处理的河滨颗粒泥沙级配分析算法

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-09-01 DOI: 10.12989/AMR.2021.10.3.229

Mohammad Azarafza, Y. A. Nanehkaran, H. Akgün, Yi-min Mao

{"title":"Application of an image processing-based algorithm for river-side granular sediment gradation distribution analysis","authors":"Mohammad Azarafza, Y. A. Nanehkaran, H. Akgün, Yi-min Mao","doi":"10.12989/AMR.2021.10.3.229","DOIUrl":"https://doi.org/10.12989/AMR.2021.10.3.229","url":null,"abstract":"Determining grain-size and grading distribution of river-side sediments is very important for issues related to lateral embankment drift, river-side nourishment, management plans, and riverbank stability. In this regard, experimental procedures such as sieve analysis are used in regular assessments which require special laboratory equipment that are quite time consuming to perform. The presented study provides a machine vision and image processing-based approach for determining coarse grained sediment size and distribution that is relatively quick and effective. In this regard, an image image processing-based method was used to determine the particle size of sediments as justified by screening tests which were conducted on samples taken from the riverside granular sediments. As a methodology, different grain identification stages were applied to extract sediment features such as pre-processing, edge detection, granular size classification and post-processing. According to the results of the grain identification stages, the applied technique identified about 35% sand, 55% gravel and 7% cobble which is approximately near to the screen test results which were determined as 30% sand, 52% gravel, and 5% cobble. These results obtained from computer-based analyses and experiments indicated that the utilised processing technique provided satisfactory results for gradation distribution analysis regarding riverside granular sediments.","PeriodicalId":46242,"journal":{"name":"Advances in Materials Research-An International Journal","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48129399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Cyclic behavior and performance of a coupled-steel plate shear wall with fuse pin 带保险销的钢板剪力墙的循环性能

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-09-01 DOI: 10.12989/AMR.2021.10.3.245

Mahdi Usefvand, A. Maleki, B. Alinejad

{"title":"Cyclic behavior and performance of a coupled-steel plate shear wall with fuse pin","authors":"Mahdi Usefvand, A. Maleki, B. Alinejad","doi":"10.12989/AMR.2021.10.3.245","DOIUrl":"https://doi.org/10.12989/AMR.2021.10.3.245","url":null,"abstract":"Coupled steel plate shear wall (C-SPSW) is one of the resisting systems with high ductility and energy absorption. Energy dissipation in the C-SPSW system is accomplished by the bending and shear behavior of the link beams and SPSW. Energy dissipation and floor displacement control occur through link beams at low seismic levels, easily replaced after an earthquake. In this study, a coupled steel plate shear wall with a yielding fuse is presented. The system uses a high-ductility fuse pin element instead of a link beam, which has good replaceability after the earthquake. In this study, four models of coupled steel plate shear walls were investigated with I-shaped link beam, Ishaped link beam with reduced beam section (RBS), box-link beam with RBS, and fuse pin element under cyclic loading. The finite element method was used through ABAQUS software to develop the C-SPSW models. To verify the finite element model results, two test specimens of coupled steel plate shear walls were validated. Comparative results of the hysteresis curves obtained from the finite element analysis with the experimental curves indicated that the finite element model offered a good prediction of the hysteresis behavior of C-SPSW. The results of the C-SPSW models revealed that the fuse pin caused an increase in the ultimate capacity by approximately 19% and the energy dissipation by 20% compared to the other C-SPSW.","PeriodicalId":46242,"journal":{"name":"Advances in Materials Research-An International Journal","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49130801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Optimization and application of a gel polymer electrolyte in solid state super capacitors with graphite electrodes 凝胶聚合物电解质在石墨电极固态超级电容器中的优化与应用

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-06-01 DOI: 10.12989/AMR.2021.10.2.137

B. Gunasekara, K. Perera, K. Vidanapathirana, K. Vignarooban

{"title":"Optimization and application of a gel polymer electrolyte in solid state super capacitors with graphite electrodes","authors":"B. Gunasekara, K. Perera, K. Vidanapathirana, K. Vignarooban","doi":"10.12989/AMR.2021.10.2.137","DOIUrl":"https://doi.org/10.12989/AMR.2021.10.2.137","url":null,"abstract":"The prime objective of the present study is to exploit a user friendly, inexpensive all solid state super capacitor using a suitable electrolyte and electrodes. A gel polymer electrolyte (GPE) consisted with polyvinylidene fluoride-co-hexafluopropylene (PVdF), ethylene carbonate (EC), propylene carbonate (PC) and zinc trifluoromethane sulfonate (Zn(CF3SO3)2-ZnTF) was prepared using solvent casting method and its properties were optimized by varying the composition. The composition of 16 PVdF : 22 ZnTF : 31 EC : 31 PC (weight %) exhibits the optimum room temperature conductivity of 3.09 × 10-3 Scm-1. It is purely an ionic conductor having a negligible electronic conductivity. In addition, it was possible to obtain a thin, mechanically stable film. The electrodes were prepared using Sri Lankan natural graphite (NG) with a polymer binder. Eventhough there are reports about natural graphite based super capacitors, Sri Lankan natural graphite has not been considered for super capacitors at a large scale. The main reason for turning towards natural graphite is to reap the benefits of low cost as well as the safety. In order to optimize the electrode properties, the ratio between graphite and polymer binder (in weight basis) was changed. The polymer binder used was polytetrafluoroethylene (PTFE). Super capacitor fabricated with the electrode of the composition, NG : PTFE = 90:10 shows the maximum single electrode specific capacitance (2.58 Fg-1). The fabricated device retains for continuous charge discharge operation with a minimum performance reduction.","PeriodicalId":46242,"journal":{"name":"Advances in Materials Research-An International Journal","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47561964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Forced vibration analysis of a fiber reinforced composite beam 纤维增强复合材料梁的受力振动分析

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-03-01 DOI: 10.12989/AMR.2021.10.1.057

Ş. Akbaş

引用次数: 3

Effect of physical properties of samples on the mechanical characteristics of high-density polyethylene (HDPE) 样品物理性能对高密度聚乙烯(HDPE)力学特性的影响

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-03-01 DOI: 10.12989/AMR.2021.10.1.067

A. Kalmagambetova, T. Bogoyavlenskaya

{"title":"Effect of physical properties of samples on the mechanical characteristics of high-density polyethylene (HDPE)","authors":"A. Kalmagambetova, T. Bogoyavlenskaya","doi":"10.12989/AMR.2021.10.1.067","DOIUrl":"https://doi.org/10.12989/AMR.2021.10.1.067","url":null,"abstract":"This study aimed an experimental data about the effect of physical properties of samples on the mechanical characteristics of high-density polyethylene (HDPE) used for the manufacture of preinsulated pipes for heating networks. The main waterproofing insulation material in the construction of preinsulated pipelines for heating networks is polyethylene. Outer outer casing of preinsulated pipes made of high density polyethylene (HDPE) are used as a waterproofing insulation of polyurethane foam of steel pipes manufactured in the factory. The sufficient resistances to cracking and mechanical stress, resistance to ultraviolet radiation, high density, high strength, low aging are main properties of HDPE. The study of HDPE of different manufacturers is relevant because of the aging of preinsulated pipelines with HDPE outer casing. In this study are tested physical characteristics of HDPE as a melt flow rate, density at 23°C, water content of PE80, PE100 pipe polyethylene of different world manufacturers. The best samples of HDPE and the effects of various aging factors on the properties of polyethylene are presented.","PeriodicalId":46242,"journal":{"name":"Advances in Materials Research-An International Journal","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44849731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simplified numerical method for nonlocal static and dynamic analysis of a graphene nanoplate 石墨烯纳米板非局部静、动态分析的简化数值方法

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-03-01 DOI: 10.12989/AMR.2021.10.1.001

Mohammad Javad Rahi, A. R. Firoozjaee, M. Dehestani

引用次数: 0

Aluminum beam reinforced by externally bonded composite materials 外粘结复合材料加固铝梁

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-03-01 DOI: 10.12989/AMR.2021.10.1.023

Rabahi Abderezak, T. H. Daouadji, Benferhat Rabia

{"title":"Aluminum beam reinforced by externally bonded composite materials","authors":"Rabahi Abderezak, T. H. Daouadji, Benferhat Rabia","doi":"10.12989/AMR.2021.10.1.023","DOIUrl":"https://doi.org/10.12989/AMR.2021.10.1.023","url":null,"abstract":"A recently popular method for retrofitting reinforced structure beams is to bond composite plates to their tensile faces. An important failure mode of such plated beams is the debonding of the composite plates from the base material of the beam due to high level of stress concentration in the adhesive at the ends of the composite plate. This paper, shows and presents in more detail a closed-form rigorous solution for interfacial stress in cantilever aluminum beams strengthened with bonded composite (sika wrap) plates and subjected to a uniformly distributed load. The results show that there exists a high concentration of both shear and normal stress at the ends of the laminate, which might result in premature failure of the strengthening scheme at these locations. A parametric study has been conducted to investigate the sensitivity of interface behavior to parameters such as laminate and adhesive stiffness, the thickness of the laminate; the effect on plate length of the strengthened cantilever beam region, the effect of adhesive (modules, thickness) and the effect of loading and geometry for the cantilever beam; where all were found to have a marked effect on the magnitude of maximum shear and normal stress in the composite member. The theoretical predictions are compared with other existing solutions. Finally, this research is helpful for the understanding on mechanical behaviour of the interface and design of the composite-aluminum hybrid structures.","PeriodicalId":46242,"journal":{"name":"Advances in Materials Research-An International Journal","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48194439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Thermostructural shape memory effect observations of ductile Cu-Al-Mn smart alloy 韧性Cu-Al-Mn智能合金的热结构形状记忆效应观察

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-03-01 DOI: 10.12989/AMR.2021.10.1.045

C. Canbay, O. Karaduman, P. A. Ibrahim, I. Ozkul

{"title":"Thermostructural shape memory effect observations of ductile Cu-Al-Mn smart alloy","authors":"C. Canbay, O. Karaduman, P. A. Ibrahim, I. Ozkul","doi":"10.12989/AMR.2021.10.1.045","DOIUrl":"https://doi.org/10.12989/AMR.2021.10.1.045","url":null,"abstract":"The Cu-Al-Mn shape memory alloy (SMA) with a new different composition was fabricated by arc melting method. The characteristic shape memory effect (SME) property of Cu-Al based SMA was revealed by performing thermostructural measurements. The differential scanning calorimetry (DSC) tests were taken to observe the reversible martensitic phase transformation peaks of the alloy as evidence of SME property of the alloy. To determine the basic thermodynamical parameters of the alloy, these endothermic and exothermic transformation peaks were analyzed by the tangent differentiation method that was performed automatically by the DSC analyzing program over a manually selected part on the DSC curve and by these analyses the characteristic martensitic transformation temperatures (working temperatures) that found below 100°C and the enthalpy change values of the alloy were directly obtained. The other kinetic transformation parameters of the alloy - the entropy change, hysteresis, and equilibrium temperature - were also determined. The common high-temperature behavior of the Cu-Al based Heusler alloys was detected by differential thermal analysis (DTA) measurement. The XRD and metallography tests that were conducted at room temperature showed the presence of M18R and the dominant 2H martensite structures that formed in the alloy and this dual martensitic structure was also prescribed by determining the theoretical e/a ratio of the alloy. Furthermore, the microhardness tests on the alloy demonstrated the high ductility feature of the alloy. All results demonstrated that the CuAlMn alloy exhibiting a shape memory effect property can be useful in smart alloy applications.","PeriodicalId":46242,"journal":{"name":"Advances in Materials Research-An International Journal","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46953424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and sizing of RC beams reinforced by external bonding of imperfect functionally graded plate 不完善功能梯度板外粘接加固RC梁的分析与配筋

IF 2.2

Advances in Materials Research-An International Journal Pub Date : 2021-01-01 DOI: 10.12989/AMR.2021.10.2.077

Benferhat Rabia, T. H. Daouadji, Rabahi Abderezak

引用次数: 1