Science and Engineering of Composite Materials最新文献_第9页

Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite Z-pin对碳纤维复合材料吸湿性能及弯曲载荷下损伤模式的影响

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0020

Yansheng Fan, Min Li, Yizhuo Gu, Shaokai Wang, Yanjie Wang

{"title":"Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite","authors":"Yansheng Fan, Min Li, Yizhuo Gu, Shaokai Wang, Yanjie Wang","doi":"10.1515/secm-2022-0020","DOIUrl":"https://doi.org/10.1515/secm-2022-0020","url":null,"abstract":"Abstract The effect of carbon fiber Z-pin on carbon fiber composite under moisture condition with and without flexural load was investigated in this work. Moisture absorption property and crack propagation of carbon fiber reinforced epoxy matrix composite and Z-pinned composite were evaluated under moisture only and moisture-coupled load conditions. The moisture property was evaluated by moisture content and microscopic morphology obtained using X-ray micro-computed tomography (X-ray μCT). The microstructures inside composites and Z-pinned composites after moisture conditions and three-point flexural test were detected using X-ray μCT and optical microscope. It illustrates that the moisture content of Z-pinned composites is higher due to the rich-resin pocket brought by the implantation of Z-pin. The cracks are obvious inside Z-pinned composites after moisture-coupled load conditions. It is attributed to the implantation of each pin which is the weak point for stress concentration and crack formation. Failure morphologies on the surface of composites and Z-pinned composites are different under different moisture conditions. Less macro-interlayer cracks are detected on the surface of Z-pinned composites, and plenty of microcracks initiating from pins are observed.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43633657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deformation behavior of rubber composite based on FEA and experimental verification 基于有限元分析和实验验证的橡胶复合材料变形行为

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0011

Yongfeng Shan, Haitao Cui, Hong-jian Zhang, H. Liu

{"title":"Deformation behavior of rubber composite based on FEA and experimental verification","authors":"Yongfeng Shan, Haitao Cui, Hong-jian Zhang, H. Liu","doi":"10.1515/secm-2022-0011","DOIUrl":"https://doi.org/10.1515/secm-2022-0011","url":null,"abstract":"Abstract A novel separating device, Inertial particle separator (IPS), has been developed recently to separate solid particles and to protect the turbine engine from particle erosion damage. Herein first, an advanced model based on IPS was proposed to investigate the deformational behavior of deformable particle separator, and to meet the higher requirements of sand discharge and pneumatic demand, which are operated under hostile working conditions or environments and severe climate conditions. We established a three-dimensional (3D) nonlinear finite element analysis (FEA) model of bump consequently, which was the core of centerbody. The essential material parameters of the FEA model were obtained via experimental data (tensile testing). By comparing the influence of these factors (pressure and laying angle), the deformational behavior of the centerbody was discussed. Finally, based on the simulation results with the experimental data (Schlieren testing), the model was found to perform with high reliability and accuracy, demonstrating the great capability in precisely predicting the deformational characteristics of the bump under practical working environments.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43715175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new EPS beads strengthening technology and its influences on axial compressive properties of concrete EPS微珠加固新技术及其对混凝土轴压性能的影响

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0005

Yuanyuan Ji, Wang Linbing, Li Weilong, Yang Hailu, Wang Jianjun, Zhang Wenhua, Xiong Zhenzhen

{"title":"A new EPS beads strengthening technology and its influences on axial compressive properties of concrete","authors":"Yuanyuan Ji, Wang Linbing, Li Weilong, Yang Hailu, Wang Jianjun, Zhang Wenhua, Xiong Zhenzhen","doi":"10.1515/secm-2022-0005","DOIUrl":"https://doi.org/10.1515/secm-2022-0005","url":null,"abstract":"Abstract In this article, a new technology of surface wrapping and strengthening of expandable polystyrene (EPS) beads is proposed. Three wrapping materials including magnesium phosphate cement (MPC), ultra-high performance concrete (UHPC), and water-borne polyurethane (WPU) were evaluated. Four groups of uniaxial compression tests of EPS concrete specimens were conducted: the failure process and the characteristics of the specimens were analyzed; and the complete stress–strain equation is proposed based on these analyses. The research shows that the EPS beads were strengthened by wrapping, and the axial compressive strength of concrete is increased by 50–75%; the concrete with EPS beads wrapped by MPC and WPU has obvious brittleness; the concrete with EPS beads wrapped by UHPC has axial compressive strength close to that of EPS concrete wrapped with MPC and WPU but has a larger ductility coefficient (150%), a larger toughness coefficient (50–90% larger), a higher energy dissipation coefficient (40% larger), and larger residual stress. The proposed stress–strain model is in good agreement with the experimental results, which can accurately describe the stress and deformation characteristics of EPS concrete under uniaxial compression and has good applicability. The discovery of this study provides background knowledge for the structural analysis and design of this kind of concrete; it provides a basis for selecting EPS concrete as structural materials.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49528689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Investigation on mechanical and conductive behaviors of nano-graphite-based concrete 纳米石墨基混凝土的力学和导电性能研究

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0151

Jie Zhou, Fan-Chang Li, Yanan Zhang, X. Du

引用次数: 0

In-situ CT characterization of 2D woven SiCf/SiC composite loading under compression 二维编织SiCf/SiC复合材料压缩载荷的原位CT表征

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0166

Wei-yao Guo, Yantao Gao, Lijuan Sun

引用次数: 3

A novel superabsorbent material based on soybean straw: Synthesis and characterization 基于大豆秸秆的新型高吸水性材料的合成与表征

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0006

Junhua Guo, Jing-Xing Huang, Tingguo Liu, Jianbin Chen, S. Janaswamy

引用次数: 2

Use of line laser scanning thermography for the defect detection and evaluation of composite material 线激光扫描热成像在复合材料缺陷检测和评价中的应用

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0007

Yin Li, Yuan-Jia Song, Zheng-wei Yang, Xin Xie

引用次数: 4

Analysis of electromagnetic characteristics of the proposed composite four-rail electromagnetic launcher 复合四轨电磁发射器电磁特性分析

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0010

Li Tengda, Feng Gang, Liu Shaowei

{"title":"Analysis of electromagnetic characteristics of the proposed composite four-rail electromagnetic launcher","authors":"Li Tengda, Feng Gang, Liu Shaowei","doi":"10.1515/secm-2022-0010","DOIUrl":"https://doi.org/10.1515/secm-2022-0010","url":null,"abstract":"Abstract In the existing composite four-rail electromagnetic launcher (CFREL), the armature and rail contact surface produces significant heat and bears considerable wear, thereby reducing the potential amount of electromagnetic thrust to be generated. To eliminate the damage caused by the thermal effect of the rail contact surface and to meet the electromagnetic thrust demand of the load, a CFREL is proposed. The proposed CFREL model is constructed, and the launcher’s electromagnetic characteristics are simulated and compared using the finite element method. The current density, distribution of magnetic flux density, and electromagnetic thrust characteristics are analysed. The results showed that the proposed CFREL reduced the maximum current density of the contact surface and effectively eliminated the current concentration of the armature and rail contact surfaces. Effective magnetic field shielding is realised with a larger range, which can better meet the requirements of the intelligent load’s magnetic field environment and provide stronger electromagnetic thrust for the load, hence solving the problem of insufficient thrust.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47521516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Study of concrete properties based on crushed stone sand mixture and fiber of fly ash of thermal power plants 火电厂粉煤灰纤维与碎石砂混合料混凝土性能研究

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0167

A. Bieliatynskyi, Shilin Yang, V. Pershakov, M. Shao, M. Ta

{"title":"Study of concrete properties based on crushed stone sand mixture and fiber of fly ash of thermal power plants","authors":"A. Bieliatynskyi, Shilin Yang, V. Pershakov, M. Shao, M. Ta","doi":"10.1515/secm-2022-0167","DOIUrl":"https://doi.org/10.1515/secm-2022-0167","url":null,"abstract":"Abstract The study aims to optimize the composition of the main composite, the components of which, in their joint presence, make it possible to obtain the most significant positive synergistic effect. The authors of this article used the fibers of fly ash from thermal power plants as a finely dispersed component added to the crushed stone sand mixture. The result of the study was a high-strength corrosion-resistant material consisting of a crushed stone sand mixture (CSSM) with the addition of the fibers of fly ash. The authors applied the thermogravimetric and standard methods to study and determine the performance and strength characteristics of the obtained material. The combined effect of a complex organic-mineral modifying additive and the cement with the fibers of fly ash provided a compacted and reinforced structure of cement stone. An optimal binder composition was developed, consisting of cement and fiber of fly ash. The authors of this article examined the physical-mechanical and structural-mechanical properties of a CSSM of fine-grained concrete reinforced with a complex additive of cement, fibers of fly ash, and a superplasticizer. The study also provided technological solutions for manufacturing a functional mixture of fine-grained concrete based on the developed complex organic-mineral additive.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47577489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Failure process of steel–polypropylene hybrid fiber-reinforced concrete based on numerical simulations 基于数值模拟的钢-聚丙烯混杂纤维混凝土破坏过程

IF 1.9 4区材料科学

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI: 10.1515/secm-2022-0154

H. Wu, Yu Zhang, Kaisheng Yao, Bozhen Yang

引用次数: 1