Yong-he Li, Qingguo Wang, Lina Tuo, Fasong Zhang, Xiaoyu Zhang
{"title":"Experimental investigations of a novel pressure microfoam preparation device for dust removal","authors":"Yong-he Li, Qingguo Wang, Lina Tuo, Fasong Zhang, Xiaoyu Zhang","doi":"10.1515/secm-2022-0001","DOIUrl":"https://doi.org/10.1515/secm-2022-0001","url":null,"abstract":"Abstract Compared with large size foam, pressure microfoam has the characteristics of a good pipeline transportation stability, good jet orientation, strong impact force, and strong ability to capture fine dust, which is more suitable for dust removal. The traditional foam preparation device has the disadvantages of high-pressure loss, poor foaming effect, and foam uniformity. To overcome the above shortcomings, the annular air supply vertical foam preparation device was proposed in the article. The foaming cylinder of the device adopts a vertical design to avoid the influence of uneven distribution of foam caused by gravity; the spiral nozzle is used to evenly spray the foaming liquid on the foaming mesh to increase the contact area between foam and airflow. The stainless steel wire mesh and cotton wire mesh are adopted to improve the reliability and durability of concave foaming mesh. The performance of the new device was obtained by the self-built experimental system. Finally, the field test shows that the conditions of the heading face could fully meet the requirements of the device for pressure water and compressed air, and the produced pressure microfoam can effectively control dust.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"1 - 8"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43316568","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}
Ran Yang, Jigang Zhang, Chenghao Zhou, Wenli Chen, Jiguang Chen, Yang Zhao
{"title":"Theoretical analysis of aluminum honeycomb sandwich panel supported by reinforced concrete wall under low-speed impact load","authors":"Ran Yang, Jigang Zhang, Chenghao Zhou, Wenli Chen, Jiguang Chen, Yang Zhao","doi":"10.1515/secm-2022-0150","DOIUrl":"https://doi.org/10.1515/secm-2022-0150","url":null,"abstract":"Abstract Honeycomb materials are widely used across engineering fields. The use of honeycomb sandwich structures as energy dissipation and impact protection materials for reinforced concrete components in the field of civil engineering is a novel concept. Therefore, it is of great significance to study the energy absorption characteristics, dynamic response theoretical model, and collapse energy dissipation theory for the use of honeycomb sandwich structures as protective materials. Based on the large-scale low-speed pendulum impact test and the corresponding finite element model, this study establishes an ideal model for the honeycomb sandwich panel under the impact of a square flat head and gives the corresponding theoretical derivation. At the same time, it puts forward a method to estimate the energy consumption and dynamic crushing distance based on the energy consumption theory angle of the covering layer.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"265 - 273"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47395140","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":"The viability of cell that encapsulated in calcium alginate hydrogel beads","authors":"Fang-fang Li, W. Tang, Q. Xie","doi":"10.1515/secm-2022-0156","DOIUrl":"https://doi.org/10.1515/secm-2022-0156","url":null,"abstract":"Abstract Objective To prove that calcium alginate beads can be used as scaffolds during in vitro culture. Methods Mouse preosteoblastic cells (MC3T3-E1) were encapsulated in calcium alginate hydrogel beads. The Cell Counting Kit-8 (CCK-8) assay was used to assess cell viability at 2, 5, 8, 11, 14, and 21 days. Calcein-AM and propidium iodide (PI) were employed for live/dead staining. Results MC3T3-E1 cells were alive on day 21 and had the highest viability on day 14. Conclusion MC3T3-E1 cells could be encapsulated in calcium alginate hydrogel beads and cultured. Calcium alginate hydrogel beads can be used as scaffolds for three-dimensional in vitro culture.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"473 - 480"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44893964","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}
Leema Rose Ayyasamy, Anbarasu Mohan, D. S. Vijayan, Agoramoorthy Sattainathan Sharma, Parthiban Devarajan, Aravindan Sivasuriyan
{"title":"Finite element analysis of behavior and ultimate strength of composite column","authors":"Leema Rose Ayyasamy, Anbarasu Mohan, D. S. Vijayan, Agoramoorthy Sattainathan Sharma, Parthiban Devarajan, Aravindan Sivasuriyan","doi":"10.1515/secm-2022-0017","DOIUrl":"https://doi.org/10.1515/secm-2022-0017","url":null,"abstract":"Abstract Composite sections are found to be a novel technique in modern day scenario of construction. This stands tall than the ordinary and conventional type of constructions. Columns as a structural element play a vital role in structural frame. This research comments on the behavior of composite columns. The main objective of this study is to analyze the behavior of steel-encased concrete composite columns as experimentally under axial compression and the mode of failure under ultimate failure and yield point. The steel-concrete composite system combines the formability and rigidity of reinforced concrete with the ductility and strength of structural steel to meet the demand for earthquake-resistant constructions. Three specimens were chosen for this study: one was a composite column, the other two were ordinary RC columns and structural steel columns. The raw materials' natural properties are assessed. As a result, material testing for cement, fine aggregate, and coarse aggregate was completed, as well as a concrete mix design. A comparative analysis of the local and post-local buckling behavior of different composite sections has been studied and the column sections have been designed according to Eurocode 4 (ENV 1994) to determine the plastic resistance of the section. These three specimens underwent compression test and the results are tabulated and compared. The corrosion resistance and fireproof nature (resistance to fire at higher temperatures) that are transmitted into the member are related to the steel being encased within the concrete. These are the two major drawbacks of any steel construction combined with an earthquake-resistant structure. Rather than a traditional steel construction, earthquake structures benefit from this type of load handling capabilities. The portion can be used before it completely collapses if proper design factors are taken into account.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"176 - 182"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41645906","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}
Changmei Du, Hanhua Li, S. Yan, Qiuhua Zhang, Jiale Jia, Xixi Chen
{"title":"Damage and failure analysis of composite stiffened panels under low-velocity impact and compression after impact with damp-heat aging","authors":"Changmei Du, Hanhua Li, S. Yan, Qiuhua Zhang, Jiale Jia, Xixi Chen","doi":"10.1515/secm-2022-0159","DOIUrl":"https://doi.org/10.1515/secm-2022-0159","url":null,"abstract":"Abstract The low-velocity impact and compression after the impact of the composite stiffened panels were carried out after damp-heat aging. The experimental results show that reinforcing the ribs can enhance the impact resistance of test pieces after damp-heat aging. After impacting, the specimens were tested in an axial compression. The results show that the ultimate bearing capacity of the specimen is also affected by different located positions of the impact and different aging times. Compared with the intact specimen, the ultimate load-bearing capacity was reduced to 16.83, 12.10, and 17.10% with the specimen aging for 0, 45, and 90 days, respectively, while the impact position located at the intersection of longitudinal and transverse bars has the greatest influence on the damp-heat aging of specimens.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"378 - 393"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42604888","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}
Peiyu You, Chen Chen, Ye Wu, Baohua Zhang, Xiaojun Tang, Dalei Zhu, Zhenxue Liu, Yunsheng Ma
{"title":"An experimental study on the failure and enhancement mechanism of bolt-strengthening GFRP T-joint subjected to tensile loading","authors":"Peiyu You, Chen Chen, Ye Wu, Baohua Zhang, Xiaojun Tang, Dalei Zhu, Zhenxue Liu, Yunsheng Ma","doi":"10.1515/secm-2022-0169","DOIUrl":"https://doi.org/10.1515/secm-2022-0169","url":null,"abstract":"Abstract The aim of this article is to investigate the failure and enhancement mechanism of bolt-strengthening glass fiber-reinforced polymer (GFRP) T-joints under quasi-static tension. One-step molding technology based on the vacuum-assisted resin infusion process is carried out to fabricate the GFRP T-joints structures. Then, a special fixture and constraint condition are set up to take the quasi-static tensile test with high reliability. Moreover, it is demonstrated that the T-joints structures may decrease their bearing capacity, resulting in interlaminar delamination at the corner region. Further, to strengthen the T-joints, the bolts are employed to effectively prevent the initiation and propagation of interlaminar delamination in the tensile loading. At the same time, as their enhancement and failure mechanisms are revealed deeply, the strengthening method is optimized as well.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"466 - 472"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49165592","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}
Xi Wang, Shiqin Liao, Lizhu Hu, Pei Xiao, Peijian Du
{"title":"A simple method for measuring the monofilament diameter of continuous filament yarn with high bending stiffness via synthetic laser imaging","authors":"Xi Wang, Shiqin Liao, Lizhu Hu, Pei Xiao, Peijian Du","doi":"10.1515/secm-2022-0157","DOIUrl":"https://doi.org/10.1515/secm-2022-0157","url":null,"abstract":"Abstract The uniformity of the monofilament diameter plays a key role in the performance of continuous filament yarns and their subsequent products. However, traditional methods for measuring fiber or filament diameters focus on estimating the arithmetic mean data, and only part of the diameter data can be obtained. Additionally, most of these traditional methods require complex sample preparations, such as by making cross-sectional slice samples. This study intends to present a simple method for measuring almost all of the monofilament diameters in a single yarn. It is not necessary to make slice samples. After the yarn sample or fabric sample is taken and prepared, synthetic laser images can be obtained directly by scanning the cross section of the sample with a 3D laser scanning confocal microscope. According to the results of many experiments, more than 90% of the monofilament diameters of a single yarn can be measured. The result also shows that the difference in the diameter data between the traditional method and the synthetic laser imaging method is less than 2%. This method presents the differences between the majority of monofilament diameters, and the yarn clustering property can be evaluated by the sum of the monofilament diameters and the yarn cross-sectional area.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"312 - 321"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45591479","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}
Dong-Chul Kim, J. Choi, Hyo‐Soon Shin, Inkyun Jung, Y. Heo
{"title":"Effect of the manufacturing process on the equivalency qualification of glass fiber reinforced polymer","authors":"Dong-Chul Kim, J. Choi, Hyo‐Soon Shin, Inkyun Jung, Y. Heo","doi":"10.1515/secm-2022-0164","DOIUrl":"https://doi.org/10.1515/secm-2022-0164","url":null,"abstract":"Abstract Glass Fiber Reinforced Polymer (GFRP) is widely used as aerospace material requiring high specific strength, specific stiffness, and excellent mechanical and chemical properties. To apply the already approved composite materials to other processes, an equivalency test that compares the mechanical properties of the composite materials based on the database is required. For the successful completion of the equivalency test, it is important to control the factors affecting the mechanical properties. The resin content and density of the specimens are manufactured differently according to the process. The effect of these factors on the change of mechanical properties required for equivalency qualification has not been sufficiently reported. In this study, an equivalency test was performed on the GFRP applied to the aircraft radome based on the procedure of the equivalency test and acceptance test proposed by the National Center for Advanced Materials Performance. The causes of problems occurring between equivalency tests were analyzed. It was confirmed that the resin content, density, and voids of the specimen affect the mechanical properties. As the resin content decreases, the density and voids were controlled, and it was confirmed that the average strength and modulus increase by 13.12 and 6.78%, respectively. The equivalency qualification was completed by applying an improved process in which these factors were controlled.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"403 - 411"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47771027","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":"Calculation method of elastic modulus for carbon fiber-reinforced plastics considering inhomogeneous interphase","authors":"Pengfei Bu, H. Ren, W. Ruan, K. Dong","doi":"10.1515/secm-2022-0171","DOIUrl":"https://doi.org/10.1515/secm-2022-0171","url":null,"abstract":"Abstract The characteristic of interphase has a significant influence on the macroscopic performance of carbon fiber-reinforced plastics (CFRP). To investigate the effect of interphase on composite elastic modulus, a representative volume element (RVE) of unidirectional CFRP with inhomogeneous interphase was established. Based on the bridging model, a theoretical calculation method of composite elastic modulus was given. The elastic modulus of T300/BSL914C composites was obtained by the theoretical method. Results are in good agreement with the finite element method and experimental data. Four types of interphase models were given including inhomogeneous transversely isotropic, inhomogeneous isotropic, homogeneous transversely isotropic, and homogeneous isotropic. The results demonstrate that interphase type has an influence on the prediction of CFRP composites’ elastic modulus. With the increase of thickness, the prediction error of elastic modulus caused by interphase type increases rapidly. Furthermore, the relationship between composite elastic modulus and interphase thickness and stiffness is analyzed. With the increase in thickness, the changes in shear modulus G 12 and Poisson’s ratio ν23 are more evident than in other elastic properties, and with the enhancement of interphase stiffness, the increase of G 12 is the most significant.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"452 - 465"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45778696","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":"Mechanical properties improving and microstructure characterization of inorganic artificial stone binder","authors":"Yifeng Huang, Lanyu Ma, W. Lai, Qiufeng Mo, Yihua Zheng, Yanming Li, Mengxue Xu, Zhimin Huang","doi":"10.1515/secm-2022-0162","DOIUrl":"https://doi.org/10.1515/secm-2022-0162","url":null,"abstract":"Abstract In this article, aiming at the problems of low mechanical properties and the unstable structure of the binder in inorganic artificial stone, performance improvements were studied. The effects of 12 materials of blast-furnace slag (BFS), fly ash (FA), and kaolin on the properties and microstructure of inorganic binders were systematically studied and analyzed. As a result, the compressive strength of BFS-2, FA-1, and FA-2 binder was increased by 10.0, 6.0, and 1.5%, and the flexural strength was increased by 44.8, 79.2, and 1.3%, respectively. It was worth noting that BFS and FA could effectively promote hydration reactions due to active materials and boost the growth of C–S–H and CH, leading to the inorganic binder forming a stable structure. Thus, this work systematically designs and prepares inorganic binders with high compressive strength and excellent flexural strength. This reveals how inorganic materials affect the properties of inorganic binders on the microstructure and offer a new idea for the development of this field.","PeriodicalId":21480,"journal":{"name":"Science and Engineering of Composite Materials","volume":"29 1","pages":"335 - 345"},"PeriodicalIF":1.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45030984","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}