Linlin Liu, Hongyu Xu, Li Gao, Yinghu Zhao, Hai-Bo Wang, N. Shi, Lixiao Guo, Pan Liu
{"title":"Application of melanin as biological functional material in composite film field","authors":"Linlin Liu, Hongyu Xu, Li Gao, Yinghu Zhao, Hai-Bo Wang, N. Shi, Lixiao Guo, Pan Liu","doi":"10.1515/secm-2022-0013","DOIUrl":"https://doi.org/10.1515/secm-2022-0013","url":null,"abstract":"Abstract Melanin comes from a wide range of sources. It can be isolated and characterized from some plants, animals and microorganisms, and can also be simply polymerized by dopamine. It has many biological properties such as antioxidant, ultraviolet shielding and bacteriostasis. Based on the above characteristics, the addition of melanin to film-forming materials can improve the relevant physical properties and functional properties of the film. In this article, the structure and properties of melanin were briefly introduced, and then the advantages and related research progress of melanin as a functional filler in the field of composite film were summarized.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"126 - 139"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47984295","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}
A. Bieliatynskyi, Shilin Yang, V. Pershakov, M. Shao, M. Ta
{"title":"Study of carbon nano-modifier of fly ash in cement concrete mixtures of civil engineering","authors":"A. Bieliatynskyi, Shilin Yang, V. Pershakov, M. Shao, M. Ta","doi":"10.1515/secm-2022-0018","DOIUrl":"https://doi.org/10.1515/secm-2022-0018","url":null,"abstract":"Abstract Modern materials science has faced the problem of reducing the cost of raw materials and labor costs while obtaining basic construction materials (cement concrete) with increased performance properties. The article aims to substantiate the use of carbon nanotubes of fly ash as a cement concrete modifier to be reasonable for solving the above problem. Experimental studies are carried out using standard and special methods. The technological properties of cement concrete mixtures are determined in accordance with the European and American standards. The study investigates the impact of carbon nanotubes of fly ash on the structure and properties of the mineral Portland cement binder. The article provides the examination of structural and rheological characteristics of nano-modified cement concrete mixtures. The effect of a carbon nano-modifier on the strength, deformation, and performance properties of cement concrete mixtures is defined. As a result, the optimal composition of nano-modified cement concrete mixture has been developed that meets the criteria of concrete compressive strength and flowability. Positive research results allow determining the areas of application of the obtained compositions in civil engineering.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"227 - 241"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49332966","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}
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":"29 1","pages":"206 - 214"},"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}
{"title":"Review on research progress of cemented sand and gravel dam","authors":"Xin Cai, Yanan Zhang, Xing-wen Guo, Xiaochuan Zhang, Fan-Chang Li, Tianye Zhang","doi":"10.1515/secm-2022-0168","DOIUrl":"https://doi.org/10.1515/secm-2022-0168","url":null,"abstract":"Abstract As an environmentally friendly, green, and low-carbon construction material, cemented sand and gravel (CSG) dam is widely used in civil engineering and water conservation projects in China. This study describes the progress of research on CSG dams (materials) in recent years, including the progress of engineering related to cemented gravel dams, the static, dynamic, and thermodynamic properties and intrinsic structure models of dam building materials, the static, dynamic, and temperature field analysis of dam structures, and the design of dam profiles; and on this basis, it proposes the direction of further research and development of cemented gravel structures, which will provide research for new cemented gravel structures in China. Structure design, old and diseased engineering structure removal and reinforcement, and safety assessment to provide research status and new ideas.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"438 - 451"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46418026","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}
{"title":"Research on back analysis of meso-parameters of hydraulic cemented sand and gravel based on Box-Behnken design response surface","authors":"Lixia Guo, Yuhang Guo, L. Zhong, Jiantao Zhu","doi":"10.1515/secm-2022-0008","DOIUrl":"https://doi.org/10.1515/secm-2022-0008","url":null,"abstract":"Abstract Cemented sand and gravel (CSG) is a new type of dam-building material. Aiming at the cumbersome process and long calculation time of traditional methods to invert the meso-parameters, a mesophase parameter inversion method based on Box-Behnken Design response surface was proposed. By constructing a response surface simulation test scheme with different inversion parameters (elastic modulus of aggregates, mortars and interfaces, and interfacial tensile strength), the stochastic aggregate model is used to complete the numerical simulation of the damage process, and different results are obtained. The equation between the response variable (stress at different loading times) and the independent variable (inversion parameter) was verified, and the rationality of the response model was verified; the action mechanism of mesophase parameters at different stages on the mechanical properties of the specimen was analysed. The test results are brought into the response surface model, and the meso-parameters are obtained by inverse analysis. The stress–strain curve obtained by numerical simulation with this parameter has an error of 1.1% at the peak stress and 3.27% at the peak strain. The accuracy is high, the number of test groups is much smaller than other conventional inversion methods, and has feasibility of application in CSG.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"84 - 96"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46980856","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}
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":"29 1","pages":"194 - 205"},"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}
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":"29 1","pages":"50 - 64"},"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}
{"title":"In-situ CT characterization of 2D woven SiCf/SiC composite loading under compression","authors":"Wei-yao Guo, Yantao Gao, Lijuan Sun","doi":"10.1515/secm-2022-0166","DOIUrl":"https://doi.org/10.1515/secm-2022-0166","url":null,"abstract":"Abstract SiC fiber-reinforced SiC matrix composites (SiCf/SiC) with 2D woven fabric as preform were tested under compression with in-situ X-ray computed tomography. The microstructure and damage evolution of the material under continuous loading levels were accurately revealed by image reconstruction of CT data. There were inhomogeneous pores in SiCf/SiC composite because of the un-uniform fiber distribution in the preform. The result also showed that 2D woven SiCf/SiC composite had obvious non-linear characteristics by its compressive load–displacement curve, and the damage modes included transverse matrix cracking, interlayer cracking, longitudinal matrix cracking, and fiber bundle fracture. Matrix cracking tended to occur near the pores or holes of the material, and the number of longitudinal cracks was relatively high compared to the number of transverse cracks.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"394 - 402"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48581999","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}
{"title":"Investigation on mechanical and conductive behaviors of nano-graphite-based concrete","authors":"Jie Zhou, Fan-Chang Li, Yanan Zhang, X. Du","doi":"10.1515/secm-2022-0151","DOIUrl":"https://doi.org/10.1515/secm-2022-0151","url":null,"abstract":"Abstract The aim of this study is to investigate an approach to the electricity conductivity of nano-graphite in concrete by experiments, and different doses of nano-graphite have a different influence on the electrical conductivity of the whole structure. In this research project, the compression test was carried out on a 50 mm × 100 mm cylinder using a Baldwin machine and a digital multimeter to measure the conductivity. To find out the patterns of how different nano-graphites influence the properties of concrete structures, multifarious percentages of nano-graphite’s content are employed for testing both the electrical resistivity and compressive strength. These results are important to predict and prevent structural failure and fill the gap in nano-graphene concrete research, thereby saving human lives and significantly reducing the structures’ cost of maintenance and repair.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"346 - 351"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43843755","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}
{"title":"Use of line laser scanning thermography for the defect detection and evaluation of composite material","authors":"Yin Li, Yuan-Jia Song, Zheng-wei Yang, Xin Xie","doi":"10.1515/secm-2022-0007","DOIUrl":"https://doi.org/10.1515/secm-2022-0007","url":null,"abstract":"Abstract The line laser scanning thermography was applied for the defect detection and evaluation of composite material in this work, which was carried out by the following procedures. First, a novel contrast enhancement method by homomorphic technology was proposed and validated by a case study. Then, a specimen containing 12 prefabricated defects was detected using line laser scanning thermography and the obtained thermal image sequence and changeable temperature were analyzed. Finally, the defect area was obtained via such thermal image processing as contrast enhancement based on the proposed method, threshold segmentation and quantitative evaluation. The obtained results show that the composite material defects with a depth of less than 4 mm can be detected using line laser scanning thermography but that with a depth of less than 3 mm can be evaluated quantitatively with a small error less than 10%.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"74 - 83"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44317380","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}