Hantao Huang, Zhifang Zhang^*, Zhenhua Wu, Yao Liu

Structural Durability & Health Monitoring, Vol.18, No.4, pp. 409-423, 2024, DOI:10.32604/sdhm.2024.048597 - 05 June 2024

Abstract In this paper, recycled carbon fiber reinforced polymer (CFRP) mixture (CFRP-M, including recycled carbon fiber and powder) and refined recycled CFRP fiber (CFRP-F, mostly recycled carbon fiber) were added to cement to study the influence of addition on the flexural strength, compressive strength, and fluidity of cement-based materials. The recycled CFRP were prepared by mechanically processing the prepreg scraps generated during the manufacture of CFRP products. For comparison, commercial carbon fiber powder was also added in cement and the performance was compared to that of addition of recycled CFRP. The hydration products and strengthening mechanism… More >

Yao Lu¹, Jianyu Chen², Dianlei Feng^3,*, Moubin Liu^1,*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.25, No.3, pp. 1-2, 2023, DOI:10.32604/icces.2023.010004

Abstract CFRPs (carbon fiber reinforced plastics), as a kind of fiber-reinforced plastic, present various advantages over traditional materials regarding the specific strength, stiffness, and corrosion resistance. For this reason, CFRPs are widely used in the space industry, like satellites and space stations, which are easily subjected to the HVIs (hypervelocity impacts) threatened by space debris. In order to mitigate the damage of HVIs and protect the spatial structures, it is necessary to predict the HVI process on CFRPs. Smoothed particle hydrodynamics (SPH) method, as a mesh-free particle-based method, has been widely applied for modeling HVI problems… More >

Mahdi Hosseini^1,2,*, Bingyu Jian^1,2, Jian Zhang³, Haitao Li^1,2,*, Rodolfo Lorenzo⁴, Ahmad Hosseini⁵, Pritam Ghosh⁵, Feng Shen⁶, Dong Yang^1,2, Ziang Wang^1,2

Journal of Renewable Materials, Vol.11, No.9, pp. 3517-3531, 2023, DOI:10.32604/jrm.2023.028164 - 20 July 2023

Abstract The safety of civilian and military infrastructure is a concern due to an increase in explosive risks, which has led to a demand for high-strength civil infrastructure with improved energy absorption capacity. In this study, a Finite Element (FE) numerical model was developed to determine the effect of hybrid Fibre Reinforced Polymer (FRP) as a strengthening material on full-scale Reinforced Concrete (RC) slabs. The reinforcing materials under consideration were Carbon (CFRP) and Glass (GFRP) fibres, which were subjected to blast loads to determine the structural response. A laminated composite fabric material model was utilized to More > Graphic Abstract

Mahdi Hosseini^1,2,*, Bingyu Jian^1,2, Haitao Li^1,2,*, Dong Yang^1,2, Ziang Wang^1,2, Zixian Feng^1,2, Feng Shen³, Jian Zhang⁴, Rodolfo Lorenzo⁵, Ileana Corbi⁶, Ottavia Corbi⁶

Journal of Renewable Materials, Vol.10, No.12, pp. 3243-3262, 2022, DOI:10.32604/jrm.2022.022171 - 14 July 2022

Abstract The use of fibre-reinforced polymer (FRP) to confine concrete columns improves the strength and ductility of the columns by reducing passive lateral confinement pressure. Many numerical and analytical formulations have been proposed in the literature to describe the compressive behaviour of FRP confined concrete under both monotonic and cyclic loads. However, the effect of a stress/strain level in the columns has not been well defined because of the lack of well-defined strategies of modelling and oversimplification of the model. This paper reviews the existing FRP combinations and the available numerical and analytical methods to determine More >

Zhijian Yang¹, Guochang Li^1,*, Yan Lang², Zengmei Qiu¹

CMES-Computer Modeling in Engineering & Sciences, Vol.127, No.1, pp. 273-290, 2021, DOI:10.32604/cmes.2021.014606 - 30 March 2021

Abstract This paper studies the contribution of CFRP (carbon fiber-reinforced polymer) to the mechanical behavior of high strength concrete-filled square steel tube (HCFST) under biaxial eccentric compression. The new type of composite member is composed of an inner CFRP tube and an outer steel tube with concrete filled in the two tubes. The finite element analysis was made by ABAQUS on the behavior of high strength concrete filled square steel tubular columns with inner CFRP circular tube subjected to bi-axial eccentric loading. The results obtained from the finite element analysis were verified with the experimental results. More >

Wenru Fan, Chi Wang^*

Structural Durability & Health Monitoring, Vol.14, No.4, pp. 303-314, 2020, DOI:10.32604/sdhm.2020.011009 - 04 December 2020

Abstract Due to the widespread use of carbon fiber reinforced polymer/plastic (CFRP), the nondestructive structural health monitoring for CFRP is playing an increasingly essential role. As a nonradiative, noninvasive and nondestructive detection technique, planar electrical capacitance tomography (PECT) electrodes array is employed in this paper to reconstruct the damage image according to the calculated dielectric constant changes. The shape and duty ratio of PECT electrodes are optimized according to the relations between sensitivity distribution and the dielectric constant of different anisotropic degrees. The sensitivity matrix of optimized PECT sensor is more uniform as the result shows, More >

Meijuan Shan^{1, 2}, Libin Zhao^{2, *}, Wei Huang³, Fengrui Liu², Jianyu Zhang^{4, *}

CMES-Computer Modeling in Engineering & Sciences, Vol.123, No.1, pp. 101-127, 2020, DOI:10.32604/cmes.2020.09099 - 01 April 2020

Abstract The high demands for load-carrying capability and structural efficiency of composite-metal bolted joints trigger in-depth investigations on failure mechanisms of the joints in hygrothermal environments. However, few studies have been presented to exhaustively reveal hygrothermal effects on the failure of CFRP-metal bolted joints, which differ from CFRP-CFRP or metal-metal bolted joints because of the remarkably different material properties of CFRPs and metals. In this paper, hygrothermal effects on tensile failures of single-lap and double-lap CFRP-aluminum bolted joints were experimentally and numerically investigated. A novel numerical model, in which a hygrothermal-included progressive damage model of composites… More >

Xizhi Wu^1,2, Xueyou Huang³, Xianjun Li^1,*, Yiqiang Wu¹

Journal of Renewable Materials, Vol.7, No.12, pp. 1295-1307, 2019, DOI:10.32604/jrm.2019.07839

Abstract This study presents a new structure made up of bamboo scrimber and carbon fiber reinforced polymer (CFRP) to address the low stiffness and strength of bamboo scrimbers. Three-point bending test and finite element model were conducted to study the failure mode, strain-displacement relationship, load-displacement relationship and relationships between strain distribution, contact pressure and deflection, and adhesive debonding. The results indicated that the flexural modulus and static flexural strength of the composite beams were effectively increased thanks to the CFRP sheets. The flexural modulus of the composite specimens were 2.33-2.94 times that of bamboo scrimber beams, More >

M. J. Mohammad Fikry^1,*,Shinji Ogihara¹, Vladimir Vinogradov²

The International Conference on Computational & Experimental Engineering and Sciences, Vol.22, No.4, pp. 172-172, 2019, DOI:10.32604/icces.2019.5210

Abstract Digital Image Correlation (DIC) is a new non-contact method to analyze the deformation of materials that can measure displacement or strain behavior during tensile loading. In this study, DIC is used to measure the deformation of cross-ply Carbon Fibre Reinforced Plastics (CFRP) laminates and for the detection of damages in them. The objective of this study is to measure the deformation around the damages in cross-ply CFRP laminates by using the DIC system from both width and thickness directions. For this purpose, thick CFRP [0₄/90₂₄]_s and thinner [0/90₆]_s laminates were tested. In cross-ply laminates, usually a… More >

F. Balle¹, S. Huxhold¹, G. Wagner¹, D. Eifler¹

Structural Durability & Health Monitoring, Vol.8, No.4, pp. 359-370, 2012, DOI:10.32604/sdhm.2012.008.359

Abstract Aluminum alloys and carbon fiber reinforced polymers (CFRP) are two important materials for lightweight design and the combination of these dissimilar materials becomes increasingly important. Recent investigations have shown that ultrasonic metal welding is a well suited process to realize aluminum/CFRP-joints.The ultrasonic shear oscillation parallel to the welding zone with a simultaneous welding force perpendicular to the aluminum/CFRP-sheets melts the polymer matrix and squeezes the polymer matrix out of the welding zone. This allows a direct contact between the carbon fibers and the aluminum. Beside monotonic properties the cyclic deformation behavior of these ultrasonically welded More >