Composites and Advanced Materials最新文献_第5页

Microstructural and mechanical characterization of steel-DP780/Al-5052 joints formed using resistance element welding with concealed rivet cover 隐藏铆钉盖电阻元件焊接钢- dp780 /Al-5052接头的显微组织和力学性能

Composites and Advanced Materials Pub Date : 2022-01-01 DOI: 10.1177/26349833221101076

Wanyu Cai, Qi Chen, Yijin Wang, S. Dong, P. Luo

引用次数: 1

Poly-(vinyl alcohol) composite films reinforced with carboxylated functional microcrystalline cellulose from jute fiber 用黄麻纤维羧化功能性微晶纤维素增强的聚乙烯醇复合薄膜

Composites and Advanced Materials Pub Date : 2022-01-01 DOI: 10.1177/26349833221103888

Md.Zahid Hasan, Yeasin Arafat, M. M. Bashar, Md. Nabi Newaz Niloy, Md Imranul Islam, S. Khandaker, Amrita S. Chowdhury

{"title":"Poly-(vinyl alcohol) composite films reinforced with carboxylated functional microcrystalline cellulose from jute fiber","authors":"Md.Zahid Hasan, Yeasin Arafat, M. M. Bashar, Md. Nabi Newaz Niloy, Md Imranul Islam, S. Khandaker, Amrita S. Chowdhury","doi":"10.1177/26349833221103888","DOIUrl":"https://doi.org/10.1177/26349833221103888","url":null,"abstract":"Bio-based materials have attracted ample research interest due to their intrinsic beneficial impact on human society. Microcrystalline cellulose (MCC) extracted from a variety of bioresources is one of the most prominent candidate in this regard. Herein, the MCC was synthesized from jute fiber by a facile ammonium persulfate (APS) oxidation method resulting in carboxylic functional groups on the fiber surface. The carboxylated MCC was utilized to develop polyvinyl alcohol (PVA) composite films in a solution casting method. The surface chemistry, thermal properties, and surface morphology of MCC and MCC-PVA composite films were studied by FT-IR spectroscopy, thermogravimetric analysis, and scanning electron microscopy. The SEM images confirmed the rod-like MCC with average particle diameter 4.6 μm and length in 48.4 μm. The FT-IR spectroscopy suggested the complete removal of lignin and hemicellulose from jute fiber. A peak at 1730 cm−1 was introduced in MCC due to oxidation with APS. The MCC was readily dispersible in water, and chemical interaction with –OH group of PVA was spontaneous due to the carboxylation in MCC. The absorption peak of –OH groups in MCC-PVA composite films were shifted, somewhat disappeared and weakened due to the intra and intermolecular hydrogen bonding of MCC and OH groups in PVA. Thermogravimetric analysis expressed the thermal behavior of MCC and MCC-PVA composite films. The char formation at 500°C of the two different composite films was 15% and 16%, respectively. The stability of MCC-PVA composite films at elevated temperatures is the indication of potential application as flame retardant material.","PeriodicalId":10608,"journal":{"name":"Composites and Advanced Materials","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76162477","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

Comparative investigation of the influence of stone-dust particles and bagasse fiber on the mechanical and physical properties of reinforced recycled high-density polyethylene bio-composites 石尘颗粒与甘蔗渣纤维对增强再生高密度聚乙烯生物复合材料力学和物理性能影响的对比研究

Composites and Advanced Materials Pub Date : 2022-01-01 DOI: 10.1177/26349833221077701

I. Oladele, Simbiat Olawunmi Aliu, A. S. Taiwo, N. I. Agbeboh

{"title":"Comparative investigation of the influence of stone-dust particles and bagasse fiber on the mechanical and physical properties of reinforced recycled high-density polyethylene bio-composites","authors":"I. Oladele, Simbiat Olawunmi Aliu, A. S. Taiwo, N. I. Agbeboh","doi":"10.1177/26349833221077701","DOIUrl":"https://doi.org/10.1177/26349833221077701","url":null,"abstract":"One of the main purposes of this research is to control environmental pollution and mitigate the impact of ignorantly discarded waste plastics in the environment through recycling of such plastics and using them to develop innovative composite materials. The present work investigates the influence of stone-dust particles and bagasse fiber on the mechanical and physical properties of reinforced recycled high-density polyethylene bio-composites. The bagasse fiber was first treated with 0.5 m NaOH solution at a temperature of 50°C for 2 h in order to improve the surface morphology and also modified the mechanical properties of the fiber. Likewise, the stone-dust particles were analyzed by using a standard sieve shaker to obtain particle sizes of 75 μm. Both reinforcements were used for composite development through the compression molding technique and the samples were subjected to mechanical and physical properties tests in accordance with standards. Analysis of the results revealed that flexural, hardness, wear, and hydrophobicity of the developed bio-composites were improved by stone-dust particles. The flexural strength at peak and modulus were enhanced by 88% and 92%, respectively. Also, it was discovered that, tensile, impact and thermal conductivity properties of the bio-composites were improved by bagasse fiber. The ultimate tensile strength and Young’s modulus were enhanced by 43% and 34%, respectively. Hence, the blend of these by-products showed that they are potential bio-materials for the development of bio-composites.","PeriodicalId":10608,"journal":{"name":"Composites and Advanced Materials","volume":"256 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77618446","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: 4

Confined hollow concrete block masonry buildings: An experimental approach for vulnerability assessment 约束空心混凝土砌块砌体建筑:易损性评估的实验方法

Composites and Advanced Materials Pub Date : 2022-01-01 DOI: 10.1177/26349833221091290

A. Ahmed, A. Sadiq, K. Shahzada

引用次数: 2

Experimental study on the effect of Cordia africana’s and Austria pine’s wood species on the performance of wood plastic composite 非洲松和奥地利松两种木材对木塑复合材料性能影响的试验研究

Composites and Advanced Materials Pub Date : 2022-01-01 DOI: 10.1177/26349833221105522

Abraham Murad, Belete Sirahbizu

{"title":"Experimental study on the effect of Cordia africana’s and Austria pine’s wood species on the performance of wood plastic composite","authors":"Abraham Murad, Belete Sirahbizu","doi":"10.1177/26349833221105522","DOIUrl":"https://doi.org/10.1177/26349833221105522","url":null,"abstract":"With its market demand expansion and increased application areas, products of wood-plastic composite (WPC) have been developing and growing rapidly in many countries over the last decades. This paper attempts to investigate the effect of wood species that are waste from the furniture industries on the performance of wood-plastic composites (WPCs). The samples were prepared by varying the wood flour species at 30wt% mixed with 70wt% HDPE (High Density polyethylene). The wood species used for samples preparation are Cordia africana’s /wanza/ wood flour, Austria pine’s wood flour, and the mixture of both wood species flour in 15wt% of each wood species and the resulted composites tensile and impact properties determined. Morphological and water absorption characteristics of these composites were also determined. The composite from the mixture of wood species exhibited best interfacial bonding between matrix and reinforcement that resulted in providing the best water absorption property, and the maximum tensile strength of the composite which is, 15.465 MPa. Compared with the pure HDPE, the reduction of impact strength with the addition of wood was also observed. Wood species in wood-plastic composites are an essential factor for the performance of WPCs.","PeriodicalId":10608,"journal":{"name":"Composites and Advanced Materials","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86246082","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

Modeling of the mechanical properties of fused deposition modeling (FDM) printed fiber reinforced thermoplastic composites by asymptotic homogenization 基于渐近均匀化的熔融沉积(FDM)打印纤维增强热塑性复合材料力学性能建模

Composites and Advanced Materials Pub Date : 2022-01-01 DOI: 10.1177/26349833221132296

A. Özen, D. Auhl

{"title":"Modeling of the mechanical properties of fused deposition modeling (FDM) printed fiber reinforced thermoplastic composites by asymptotic homogenization","authors":"A. Özen, D. Auhl","doi":"10.1177/26349833221132296","DOIUrl":"https://doi.org/10.1177/26349833221132296","url":null,"abstract":"Fused deposition modeling (FDM) is a low-cost additive manufacturing method with moderate tolerances and high design flexibility. Ample studies are being undertaken for modeling the mechanical properties of FDM by using the Finite Element Method (FEM). The process technique of FDM results in anisotropic inner structures that are affected by the chosen manufacturing parameters. Moreover, composite filaments, such as fiber-reinforced polymers, have anisotropy even in filament form before FDM printing. These anisotropic effects are needed to be examined and incorporated for an adequate model. In order to speed up the design stage, we aim to prepare a practical method for simulating the mechanical properties of FDM-printed fiber-reinforced polymer composites. In this work, we computed the homogenized material properties for various fiber lengths, fiber volume percentages, and fiber orientations by asymptotic homogenization at the microscale. Then, mesoscale simulations are carried out through FEM simulations by incorporating the influences of process parameters. In this way, we demonstrate the effect of various micro- and mesostructural features on the homogenized properties step by step.","PeriodicalId":10608,"journal":{"name":"Composites and Advanced Materials","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88903737","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: 2

U-type mechanical clamping to anchor the CFRP composites in strengthening of RC beams subjected to bending u型机械夹紧锚定CFRP复合材料在钢筋混凝土梁受弯加固中的应用

Composites and Advanced Materials Pub Date : 2021-01-01 DOI: 10.1177/26349833211003578

K. Letcham, P. Vincent

{"title":"U-type mechanical clamping to anchor the CFRP composites in strengthening of RC beams subjected to bending","authors":"K. Letcham, P. Vincent","doi":"10.1177/26349833211003578","DOIUrl":"https://doi.org/10.1177/26349833211003578","url":null,"abstract":"The present study investigates the performance of U-type clamp anchorage on external strengthening of reinforced concrete beams using carbon fibre-reinforced polymer composites. Unidirectional carbon fibre was used to strengthen the beam having a cross-section of 150 × 200 mm2 and the fabricated U-type clamp was used as a clamping device to enhance the fibre-reinforced polymer (FRP) bonding. To test the beam, four-point bending system was adopted and the experimental parameters were the number of FRP layers. The failure mode of strengthened beams with U-type clamp was very similar (rupture of FRP composites) to the beams without U-type clamp. However, the delamination of FRP was evaded by counteracting the peeling stress development at the edge of fibre. Since the beams strengthened with U-type clamp exhibited more linear behaviour than that of the beams strengthened without U-type clamp, there may be a higher possibility for abrupt/rapid/brittle mode of failure and the ductility index of the beam with U-type clamp confirmed the above behaviour. However, the introduction of U-type clamp enhanced the flexural stiffness and ultimate strength by counteracting the debonding, and the beam with U-type clamp exhibited a maximum of 58.33% and 20.37% enhancement in flexural stiffness and ultimate strength than that of the beam without U-type clamp, respectively. The theoretical strength value of all strengthened beams was evaluated using models proposed in the previous research and compared with experimental results. It is inferred that the use of U-type clamp in FRP strengthening provides economic and structural benefits compared to a beam without U-type clamp.","PeriodicalId":10608,"journal":{"name":"Composites and Advanced Materials","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78242250","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

Microstructure and wear resistance of red mud iron alloy with chromium and titanium 含铬钛赤泥铁合金的显微组织及耐磨性

Composites and Advanced Materials Pub Date : 2021-01-01 DOI: 10.1177/2634983321994745

Jiachang Zhou, Heyi Kang, H. Wei, Hongqun Tang, Xing Ou, Chaoqin Luo

{"title":"Microstructure and wear resistance of red mud iron alloy with chromium and titanium","authors":"Jiachang Zhou, Heyi Kang, H. Wei, Hongqun Tang, Xing Ou, Chaoqin Luo","doi":"10.1177/2634983321994745","DOIUrl":"https://doi.org/10.1177/2634983321994745","url":null,"abstract":"Red mud is a solid waste in the production of alumina from bauxite. Red mud iron alloy (RMIA) is prepared from the red mud and laterite nickel ore via the high-temperature carbothermal reduction smelting and refining. Herein, by adjusting the contents of chromium (Cr) and titanium (Ti) in RMIA, low alloy cast iron with high hardness and wear resistance was obtained. Optical emission spectrometer, optical microscope, scanning electron microscopy, and hardness and two-body wear test were used for characterization. The results show that the addition of either Cr or Ti element can lead to carbide formation and refining of graphite. With an increase in the content of Cr or Ti, the hardness and the wear resistance of the alloy were enhanced, and the effect of Cr element was better than that of Ti element. The optimal microstructure and properties of the alloy were obtained at 4.8%Cr0.36%Ti, at which stage, the network eutectic carbide structure disappeared and evenly distributed in the matrix, and meanwhile, the graphite morphology was refined. The hardness of the alloy was higher than high chromium cast iron (HCCI), and the wear resistance of the modified alloy was better than HCCI under low load. The aim of this work is to provide a reference for the preparation of wear-resistant ferroalloys from the red mud directly via high-temperature carbothermal reduction.","PeriodicalId":10608,"journal":{"name":"Composites and Advanced Materials","volume":"145 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77965999","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

A new numerical method for the tensile property analysis of discontinuous fiber-reinforced thermoplastics 一种新的非连续纤维增强热塑性塑料拉伸性能数值分析方法

Composites and Advanced Materials Pub Date : 2021-01-01 DOI: 10.1177/2633366X20977496

Dawei Zhang, P. Qu, Yuxi Jia

引用次数: 2

Effect of phosphate treatment on interfacial properties of poplar fiber/high-density polyethylene composites 磷酸盐处理对杨木纤维/高密度聚乙烯复合材料界面性能的影响

Composites and Advanced Materials Pub Date : 2021-01-01 DOI: 10.1177/26349833211024659

Liang Caiping

引用次数: 0