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Numerical modelling of the flow in a swelling preform during LCM mould filling J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-12-06 Shivam Salokhe; Mohammad Rahmati; Ryan Masoodi
Composite industry increasingly uses natural fibres because of their environment-friendly advantages. These natural fibres may swell during the mould filling process when they absorb resin, and this swelling reduces the porosity and permeability of the preform. Hence, computational modelling of the flow in swelling porous media would be useful to model the different mould filling processes with the
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Improvement of mechanical-antibacterial performances of AR/PMMA with TiO2 and HPQM treated by N-2(aminoethyl)-3-aminopropyl trimethoxysilane J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-29 Paveena Tangudom; Ignacio Martín-Fabiani; Benjaphorn Prapagdee; Ekachai Wimolmala; Teerasak Markpin; Narongrit Sombatsompop
The mechanical and antibacterial properties of acrylic rubber/poly(methyl methacrylate) (AR/PMMA) blend at 10 to 50 wt% of AR content with non-treated and treated titanium dioxide (TiO2) and 2-Hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate (HPQM) by N-2(aminoethyl)-3-aminopropyl trimethoxysilane were studied. The antibacterial property against Escherichia coli was evaluated. The
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Optimization of microstructural morphology via laser processing to enhance the bond strength of Al-CFRP J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-26 Xiaokang Liu; Hang Zhu; Yingxi Xie; Lanying Xu; Na Lin; Longsheng Lu
Generating surface-functional microstructures is an effective way to enhance the bonding strength of metal and carbon fiber-reinforced polymer (CFRP). In this study, different microstructural morphologies consisting of two different patterns were generated on the aluminum alloy (A7075) surface via laser processing. The experimental results indicated that different microstructural morphologies contribute
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Parametric and non-parametric tests for the evaluation of interlaminar fracture toughness of polymer composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-17 Hande Yavuz; Durdu Hakan Utku
This study is based on the statistical analysis of interlaminar fracture toughness of various laminated polymer composites used in aerospace applications through parametric and non-parametric tests. Tukey’s, Dunkan’s, two-sample t-test, and Kolmogorov–Smirnov tests are used to analyze tensile mode interlaminar fracture toughness of various fiber-reinforced polymer composites obtained by beam theory
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Interphase approach for modeling the DC conductivity of diverse allotropic types of carbon-reinforced polymer composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-11 Y Nioua; N Aribou; S Boukheir; ME Achour; LC Costa
This work is based on a generalized effective medium-modified model for predicting the DC electrical conductivity of polymer composites, taken into account the interactions between the components using an interphase approach. Generalized effective medium-modified model is a simple extension of the Generalized Effective Medium Theory proposed by McLachlan. We studied the modeling of the DC electrical
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Compressive properties of reversibly assembled lattice structures J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-11 Yueqing Zhao; Mingyang Liu; Tao Zhang; Bo Xu; Boming Zhang
Lattice structures are competitive to fabricate sandwich structures for their excellent mechanical properties and large internal space volume. A non-planar cross-shaped part as a regular building block has been designed and manufactured using glass fiber-reinforced thermoplastic composites. Identical cross-shaped parts can be assembled into 120-unit cell lattice structures by a mechanical interlocking
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Modeling of dynamic milling forces considering the interlaminar effect during milling multidirectional CFRP laminate J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-03 Fuji Wang; Guangjian Bi; Fuda Ning
The milling process is always required to achieve dimensional tolerance for the near-net-shape carbon fiber reinforced polymer (CFRP) parts. However, delamination and cracking are inevitably induced in milling CFRP due to the excessive milling forces. The milling forces should be thereby well controlled to reduce damages of CFRP parts. Developing a theoretical milling force model is an effective approach
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Bridging the low-velocity impact energy versus impact damage and residual compression strength for composite laminates J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-01 Di Zhang; Xitao Zheng; Jin Zhou; Wenxuan Zhang
A finite element (FE) model based on fiber kinking and a transversal fracture angle damage model with cohesive elements are proposed to simulate the low-velocity impact (LVI) and compression after impact (CAI), and build a relationship between LVI energy and CAI strength of composites. The proposed FE model is validated by a comprehensive experimental work conducted using a high strength carbon fiber/epoxy
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Factors affecting hole quality during drilling of natural fiber-reinforced composites: A comprehensive review J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-11-01 Muhammad Helmi Abdul Kudus; Mani Maran Ratnam; Hazizan Md. Akil
In recent years, with greater emphasis on environmental and sustainability aspects of engineering materials, natural fiber-reinforced polymer composites (NFRPCs) have gained significance in practical applications because of their numerous advantages. Although many researchers have developed NFRPCs using various types of natural fibers and matrix materials, in real-world applications of NFRPCs, secondary
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Evaluating the effect of variable fiber content on mechanical properties of additively manufactured continuous carbon fiber composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-30 Dakota R Hetrick; Seyed Hamid Reza Sanei; Charles E Bakis; Omar Ashour
Fiber volume fraction is a driving factor in mechanical properties of composites. Micromechanical models are typically used to predict the effective properties of composites with different fiber volume fractions. Since the microstructure of 3D-printed composites is intrinsically different than conventional composites, such predictions need to be evaluated for 3D-printed composites. This investigation
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Analytical modeling for offshore composite rubber hose with spiral stiffeners under internal pressure J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-30 Pan Gao; Qiang Gao; Chen An; Ji Zeng
Internal pressure is the most important functional load for the offshore composite rubber hose. In this paper, the stress and radial displacement of the hose under internal pressure are investigated. The hose dimensions are length of 10.7 m and nominal bore diameter of 500 mm. The composite structure is mainly composed of cord-rubber reinforcement layers and a spiral steel stiffener. To calculate the
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Fabrication of Kevlar®-reinforced ultra-high molecular weight polyethylene composite through microwave-assisted compression molding for body armor applications J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-23 Taresh Guleria; Nishant Verma; Sunny Zafar; Vivek Jain
Kevlar®-reinforced composites are used in high energy absorption applications. In the present work, Kevlar®-reinforced ultra-high molecular weight polyethylene composites were fabricated through microwave-assisted compression molding. The microwave-assisted compression molding parameters were optimized through trial and error method. Analysis of mechanical behavior of composites was accessed through
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Physical and abrasive wear behaviour of Urena lobata fiber-reinforced polymer composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-23 Chioma E Njoku; Joseph A Omotoyinbo; Kenneth K Alaneme; Michael O Daramola
The influence of fiber loading and chemical treatment of Urena lobata natural fiber loading (5, 10, 15, 20, 25, 30, and 35 wt%) on the physical, wear, and thermal stability of polypropylene-based composites was investigated. Urena lobata fibers were treated with 6 wt% NaOH solution. Both the untreated and treated Urena lobata/polypropylene composites were produced by compression molding. The physical
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Vacuum infusion in porous preform with different mould configurations: Flow simulation and experimental validation J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-22 Debabrata Adhikari; Suhasini Gururaja; Santosh Hemchandra
The present work focuses on the formulation of transient incompressible resin flow during vacuum-assisted resin transfer moulding using level set front tracking method in a multi-block structured grid within a finite difference framework. Initially, the relation between compaction pressure and fibre volume fraction (Vf) has been established by conducting compression tests using a universal tensile
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A new strategy of reusing abandoned carbon fiber reinforced plastic: Microstructures and properties of C/C composites based on recycled carbon fiber J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-20 Wenjian Guo; Shuxin Bai; Yicong Ye
A new strategy of recycling and reusing abandoned carbon fiber reinforced plastics (CFRP) is proposed: CFRPs are first fully carbonized to CF reinforced carbon (C/C) preforms, and then are manufactured into high value-added C/C composites. The results showed that the carbon residue rate of epoxy-resin (EP) matrix was fully recovered as the decomposition route of EP matrix was changed by charring agent
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Comparison of woven and stitched out-of-autoclave E-glass/epoxy composites subjected to quasi-static and cyclic tensile loads J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-20 Rudy T Haluza; Charles E Bakis; Kevin L Koudela
Tensile quasi-static and fatigue behaviors of out-of-autoclave, quasi-isotropic, E-glass/epoxy composites with woven and stitched fiber architectures are compared. Some specimens were cyclically loaded to failure, while others were tested for residual modulus and ultimate strength. Both laminates survived 107 cycles at a maximum stress of 94.8 MPa but failed prior to 107 cycles at a maximum stress
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Electro-flexure response of multi-functional natural fiber hybrid composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-17 Christopher Meninno; Vijaya Chalivendra; Yong Kim
An experimental study was conducted to investigate the electro-flexure response of conductive natural fiber hybrid laminate composites. The composites were composed of laminates of jute and flax fibers, and the composites were subjected to flexural loading for the electrical and bending response. Multi-walled carbon nanotubes were shear mixed and ultrasonicated into the epoxy matrix. Short carbon fibers
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Review of material test standardization status for the material qualification of laminated thermosetting composite structures J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-14 Sang Yoon Park; Won Jong Choi
This paper presents a review of recent literature related to the static mechanical testing of thermoset-based carbon fiber reinforced composites and introduces a material qualification methodology to generate statistically-based allowable design values for aerospace application. Although most test methods have been found to be effective in determining the specific material properties by incorporating
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Microstructural investigation and hole quality evaluation in S2/FM94 glass-fibre composites under dry and cryogenic conditions J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-14 Khaled Giasin; Antigoni Barouni; Hom Nath Dhakal; Carol Featherson; Zitoune Redouane; Sezer Morkavuk; Ugur Koklu
S2/FM94 glass fibre reinforced epoxy is an aerospace-grade composite currently bonded with aluminium alloys and installed in parts of the Airbus A380 fuselage. In addition to its abrasive and hard nature, S2/FM94 glass fibre is sensitive to thermal effects developed during the drilling process, and therefore using coolants becomes necessary. However, conventional oil and water-based coolants are not
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Thermal buckling of braided flax woven polylactic acid composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-11 Sateeshkumar Kanakannavar; Jeyaraj Pitchaimani
This study presents influence of thermal environment on buckling behaviour of natural fibre braided yarn fabric reinforced polylactic acid composite beams. The thermal buckling study is carried out using an in-house built experimental set up for beam like composites exposed to different types of in-plane temperature variations. Influences of temperature variations, direction of loading and volume fraction
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Conventional and unconventional machining performance of natural fibre-reinforced polymer composites: A review J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-11 Shanmugam Vigneshwaran; KM John; R Deepak Joel Johnson; Marimuthu Uthayakumar; V Arumugaprabu; Sundaresan T Kumaran
Natural fibre composites are the promising replacement for synthetic fibre owing to their improved properties, and more importantly, natural fibres are biodegradable and of low cost. These characteristics have made them viable for contemporary engineering and structural applications. However, large scale production of natural fibre composites is in prone because of the challenges in manufacturing and
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Applicability of fiber Bragg grating sensors for cure monitoring in resin transfer molding processes J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-10 Yannick Blößl; Gergely Hegedüs; Gábor Szebényi; Tamás Tábi; Ralf Schledjewski; Tibor Czigany
This article examines the use of fiber Bragg grating sensors for cure monitoring purposes in resin transfer molding processes. Within a resin transfer molding test series a thermoset epoxy-amine resin system was used in combination with a woven flax fiber reinforcement. Particular attention was paid on the location of the optical fiber sensor and its sensitive Bragg grating element inside the mold
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Mechanical characterisation of kenaf/PALF reinforced composite-metal laminates: Effects of hybridisation and weaving architectures J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-09 Ng Lin Feng; Sivakumar Dhar Malingam; Chen Wei Ping
Fibre metal laminates are advanced sandwich materials that offer various outstanding properties over conventional metallic alloys and composites. This research study intends to investigate the effects of weaving architectures and stacking configurations on the mechanical properties of fibre metal laminates based on kenaf/pineapple leaf fibre. Fibre metal laminates were fabricated through the hot moulding
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Drill bit with clip-edges based on the force control model for reducing the CFRP damage J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-09-09 Jiaxuan Hao; Fuji Wang; Meng Zhao; Yu Bai; Zhenyuan Jia
Carbon fiber reinforced plastic composites are popular in the aviation industry, and it is inevitable to drill holes within strict damage tolerances during assembly. However, drilling damages often occur at the drill-exit of carbon fiber reinforced plastic for lacking back support. This paper aims to study the drilling damages formation of carbon fiber reinforced plastic, and further proposes a novel
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Experimental investigation on flexural behaviour of spherical core sandwich structure J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-08-30 V Pandyaraj; A Rajadurai
The flexural behaviour of a novel spherical core sandwich structure made up of glass fibre reinforced plastic is investigated. The core orientation is modified into four different types called as regular, inverted, interlock and stagger. Vinyl ester resin is used as a matrix and two glass fibre reinforcements, namely chopped strand mat and woven fabrics, are used. The spherical core diameter is taken
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Investigation of dielectric relaxation phenomena and AC electrical conductivity in graphite/carbon nanotubes/engine oil nanofluids J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-08-24 S Barnoss; BMG Melo; M El Hasnaoui; MPF Graça; ME Achour; LC Costa
In this paper, we report an investigation on electrical conduction mechanisms of nanofluids based on commercial engine oil loaded with graphite (Gt) and multiwalled carbon nanotubes, at different concentrations. The impedance spectroscopy technique was used to measure the resistance and capacity characterizing each sample in a frequency range 100 Hz–1 MHz and a temperature range 300–400 K. Two formalisms
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A cohesive zone model for predicting the initiation of Mode II delamination in composites under cyclic loading J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-08-16 Roham Rafiee; Sina Sotoudeh
A new approach for simulating delamination initiation under cyclic loading is proposed. This approach is based on the hysteresis cohesive zone modeling and the gradual degradation of interface properties. The initiation of delamination is predicted based on the monotonic traction–separation law of the interface. A damage criterion is proposed that depends on the bilinear traction–separation law and
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Stress characteristics of double-row glass fiber-reinforced plastic pipe culvert with sand and optimization of load reduction parameters under adverse conditions J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-08-11 Qing-Zhou Wang; Cheng-Yu Jiao; Jian-Bin Zhou; Lian-Yu Wei; Cheng-Zhi Xiao
In this study, the stress and deformation rules of the double-row fiber-reinforced plastic sand pipes under the two loading methods of single-pipe and double-pipe loading were discussed. First, the indoor full-scale test was used to analyze the single-tube pipe top loading. The 90° measurement point of the loaded pipe and the 270° measurement point of the adjacent pipe were the most unfavorable positions
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Characterization and numerical simulation of laminated glass fiber–polyester composites for a prosthetic running blade J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-08-11 Wafa Ouarhim; Mehdi Ait-Dahi; Mohammed-Ouadi Bensalah; Mounir El Achaby; Denis Rodrigue; Rachid Bouhfid; Abouelkacem Qaiss
The objective of this work was to explore different types of deformations (buckling, bending, and relaxation) on the properties of laminated composites based on polyester as the matrix and glass fiber in two forms: woven and chopped strand mat. The specimens were produced with the same thickness but with different number of ply. Also, a thin gelcoat based on clay particles was applied on the chopped
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A hybrid electro-responsive SWNT/PEDOT: PSS-based membrane towards soft actuator applications J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-23 Ajahar Khan; Ravi Kant Jain; Priyabrata Banerjee; Khalid A Alamry; Bhaskar Ghosh; ▪ Inamuddin; Abdullah M Asiri
The flexible soft actuators of conducting polymers can directly convert electrical stimulus into mechanical motions, which can be used for robotics and biomimetic applications. Herein, an electro-responsive membrane actuator based on poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate), functionalized single-walled carbon nanotube was fabricated using solution casting method with poly(vinyl alcohol)
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Challenges on machining characteristics of natural fiber-reinforced composites – A review J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-21 Sonia S Raj Raj; J Edwin Raja Dhas; CP Jesuthanam
The emerging “green” economy is based on energy efficiency, renewable food stocks in polymeric products, industrial processes that reduce carbon emissions, and recyclable materials. Natural fiber is a type of renewable source and a new generation of reinforcements and integrators for polymer-based materials. Because of its advantages over synthetic fibers, the use of natural fibers as reinforcements
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Out-of-plane shear property analysis of Nomex honeycomb sandwich structure J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-19 Yue Liu; Wei Liu; Weicheng Gao
Honeycomb sandwich structure finds immense applications in aerospace manufacturing and other similar fields. The Nomex honeycomb sandwich structural material exhibits a complex structure and boundary conditions, making it difficult to obtain exact solutions for the equivalent out-of-plane shear modulus and shear strength of the Nomex honeycomb using current analytical methods. To this end, based on
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Evaluation of physicochemical and mechanical properties with the in vitro degradation of PCL/nHA/MWCNT composite scaffolds J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-19 Esperanza Díaz; Jon Aresti; Joseba León
The fabrication of biodegradable magnetic poly(caprolactone)(PCL)/nanohydroxyapatite (nHA)/multiwalled carbon nanotube (MWCNT) composite scaffolds by thermally induced phase separation (TIPS) for bone regeneration is reported in this study. The magnetism tests completed on the porous matrices pointed to their ferromagnetic behavior. Both in-vitro degradation and mechanical properties are studied over
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Experimental and numerical study on stiffness and damage of glass/epoxy biaxial weft-knitted reinforced composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-12 Navid Shekarchizadeh; Reza Jafari Nedoushan; Tohid Dastan; Hossein Hasani
This paper deals with investigating the tensile characteristics of biaxial weft-knitted reinforced composites in terms of stiffness, strength and failure mechanism. The biaxial weft-knitted fabric was produced on an electronic flat knitting machine by E-glass yarns and then was impregnated with epoxy resin. Using an accurate geometrical model, the composite unit cell was designed in Abaqus software’s
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Bonded composite patch repair’s fiber VF effects on damaged Al-plates fatigue employing a multi-scale algorithm J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-12 M Davoodi Moallem; M Barzegar; A Abedian; SA Hosseini Kordkheili
Recently, bonded composite patch repair, because of its significant advantages over traditional methods, has been highly accepted in several industries, particularly in aerospace applications. In this paper, a multi-scale finite element algorithm is proposed to simulate crack growth of repaired plates under fatigue load by considering the effects of composite micro-scale properties. The algorithm is
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A review on composite patch repairs and the most important parameters affecting its efficiency and durability J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-12 Sirvan Mohammadi; Mohammad Yousefi; Mahdi Khazaei
In many industries, when replacement of a part is not possible or economic, the repair is done. One of the best methods for repairing metal and composite parts is using composite patches. Repairing with a composite patch is a widespread field to extend the service life of the cracked components. This technique is more structurally efficient with fewer damages on the structure than others. The bonded
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Analysis of influence factors on interfacial bond between BFRP bars and seawater sea-sand concrete J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-07-12 Yuntao Hua; Shiping Yin; Zihan Wang
In this paper, the influences of parameters such as the bond length, surface textures of reinforcement, reinforcement type and stirrups restraint were considered. Pull-out failure, splitting failure and splitting-pullout failure modes were observed during the test. The slip at the free end always lagged behind the slip at the loading end and the bond-slip curve of ribbed basalt fiber reinforced polymer
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Drilling and mechanical performance analysis on flax-sisal hybrid composite embedded with perforated aluminum foil J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-30 G Rajamurugan; Agrawal Prajwal Sanjay; Prabu Krishnasamy; B Muralidharan; Sanyam Jain
This paper focused on the investigation of mechanical, twist drilling performance and microstructural analysis in aluminum foil reinforced sisal flax epoxy composite. Six combinations of composite (SF1–SF6) were fabricated by hand layup method with two different orientation of circular (φ = 5 mm) geometrical patterns in aluminum foil (thickness 0.024 mm) as structural reinforcement. The mechanical
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Stability analysis of glass fibre polyamide composite transmission tower J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-30 Chiranjit Bhowmik; Krishanu Gupta; Prasun Chakraborti
The cross-sectional degradation of steel transmission tower members due to corrosion has been one of the major issues in the transmission line system. The degradation of appearance of the material has also been seen because of corrosion. Therefore, there is a need for a less corrosive and high strength alternate material for transmission towers. It seems in recent years that alternate materials have
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Mechanical characterisation of a bamboo fibre/polylactic acid composite produced by fused deposition modelling J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-30 July A Taborda-Ríos; Omar López-Botello; Patricia Zambrano-Robledo; Luis A Reyes-Osorio; Carlos Garza
Polymer matrices are usually reinforced with fibres giving a good strength/weight ratio. Currently, innovative research has been focussed in producing new composite materials using natural fibres as an alternative sustainable material. In the present work, the mechanical behaviour of a composite based on polylactic acid reinforced with bamboo fibre produced by additive manufacturing was evaluated.
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Tensile progressive damage and compressive postbuckling analysis of open-hole laminate composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-28 Huairong Kang; Pengfei He; Cunman Zhang; Ying Dai; Zhongde Shan; Yong Zang; Hong Lv
Laminate composites contain holes as a means of connection in industrial applications. A better understanding of the mechanical properties of open-hole components is necessary. Herein, progressive damage postbuckling analysis models are proposed for investigation of tensile damage and compressive buckling behaviors of open-hole laminate composites. The progressive damage model is based on failure criteria
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Effect of fiber modified by alkali/polyvinyl alcohol coating treatment on properties of sisal fiber plastic composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-28 Can Hu; Yueyun Zhou; Ting Zhang; Taijun Jiang; Guangsheng Zeng
Demand for natural fibers reinforced composites is growing as an alternative to synthetic fiber reinforced plastic composites. However, poor compatibility between natural fiber and matrix has limited its development. Therefore, it is necessary to improve their interfacial adhesion to improve the comprehensive properties of composites. In this work, sisal fibers were subjected to an alkali/polyvinyl
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Assessing tensile behavior of open-hole variable angle tow composites using a general gradient property simulation methodology J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-26 Yingdan Zhu; Shijie Qi; Hongli Jia; Pengcheng Shi; Youqiang Yao; Junfeng Hu; Philippe Boisse; Haibing Xu
Variable Angle Tow placement is a way to steer individual curvilinear fibers. This work presents the assessment of tensile behavior of open-hole composite laminates with Variable Angle Tow reinforcement. A new multi-scale finite element method, consisting of a microscale unit cell model and a macroscale gradient property model, is developed to simulate Variable Angle Tow structures with various fiber
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Exploiting the optical reflectance behaviour of carbon fibre composites for low-cost inspection and orientations analysis J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-23 Robert S Pierce; Xiaoling Liu
This work focusses on understanding and exploiting the optical reflectance behaviour of carbon fibre reinforced polymer composites for the non-destructive determination of fibre orientation and surface defects. By taking a series of images under different lighting conditions, fibre reflections have been isolated and MATLAB image analysis has been used to calculate the fibre orientations across the
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Defects detection from time series of cutting force in composite milling process by recurrence analysis J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-20 Krzysztof Ciecieląg; Krzysztof Kecik; Kazimierz Zaleski
The article presents possibility of defects detection from milling time series using nonlinear methods: recurrence plots and recurrence quantifications. The defects are modeled as the holes with different diameters and depths. This allows estimation of the minimal size of defect possible to detect. Based on the conducted research, it has been shown that some of the recurrence indicators enable detection
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Review on process model, structure-property relationship of composites and future needs in fused filament fabrication J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-19 Easir Arafat Papon; Anwarul Haque
This paper presents the state-of-the-art of additive manufacturing of composites for processing functional, load-bearing components. A general overview of different additive manufacturing methods is provided, and specific attention is focused on fused filament fabrication-based composites processing. Different process modeling strategies are summarized, and key aspects of these models are discussed
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Failure modeling and analysis of composite laminates: Interval-based approaches J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-19 Singiresu S Rao; Mashhour A Alazwari
Abstract Composite materials inherently exhibit scatter in their basic characteristics such as the mechanical properties of constituent materials, fibers orientations, ply thicknesses, and applied loads. The uncertainties present in the basic parameters are available, in most cases, in the form of ranges or intervals. The use of the existing deterministic failure theories, which do not consider the
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Influence of freeze/thaw cycling on the mechanical performance of resistance-welded carbon fibre/polyphenylene sulphide composite joints J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-19 Vincent Rohart; Louis L Lebel; Martine Dubé
This study evaluates the effects of freeze/thaw cycles on the mechanical performance and failure mode of resistance-welded carbon fibre/polyphenylene sulphide composite joints. Dry and moisture-saturated joints are subjected to 1000 temperature cycles varying between –40°C and 82°C. A silane coating is applied on the stainless steel mesh heating element to improve its adhesion with the polyphenylene
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Kink band evolution in polymer matrix composites under bending: A digital image correlation study J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-19 Jay Patel; Adarsh Ayyar; Pedro Peralta
Polymer matrix composites are attractive structural materials in automotive, defense, and aerospace industries due to their high strength to low weight ratios. However, due to their low shear strength, compression dominated failure mechanisms such as plastic microbuckling lead to the development of kink bands, which are a key strength-limiting factor in modern polymer matrix composites. This phenomenon
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Investigation of residual stresses induced by composite forming using macro-micro simulation J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-17 Qi Wu; Nobuhiro Yoshikawa; Naoki Morita; Tomotaka Ogasawara
As the thickness of a composite differs significantly from the size of a representative volume element, composite is studied at both micro- and macroscales. In this study, the synergy between the prescribed displacement boundary and massively parallel computing enables end users to model a composite described in the micro-meter scale and take into account the global influence of the forming process
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Evaluation of heat generation using a microscopic cutting model with thermo-mechanical coupling for carbon fiber reinforced polymer composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-15 Miao Qian; Jianzhang Xiao; Guifeng Wang; Pengcheng Huang; Zhongzhe Chen; Gaorong Han
A three-dimensional micromechanical finite element cutting model with the thermo-mechanical coupling was developed for carbon fiber reinforced polymer composites in the paper. The finite element modeling considers the three phases of a composite, in which the interphase between the fiber and matrix can realize heat transfer and allow debonding to represent the failure of composites. The model predictions
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Friction plug repair welding of glass fiber-reinforced polyamide 6: Investigation of morphology, microstructure, and mechanical properties J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-15 Yinfei Yan; Yifu Shen; Keyu Shi; Jiaxin Wu; Jinpeng Hu
Friction plug repair welding technology has been demonstrated to be effective to repair the glass fiber-reinforced polyamide 6 sheets in the present paper. Influences of repair hole geometries and parameters on joint morphology and mechanical performance were investigated. Results showed that defect-free repaired joints were produced with the utilization of tapered holes rather than cylindrical holes
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Ballistic performance of unidirectionally oriented carbon fiber reinforced composite armor with high-velocity impact J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-06-03 Yelda O Kacan; Faruk Elaldi
For the last few decades, composite materials have been more popular than other conventional metal materials in the aircraft industry. Having better mechanical properties (strength, fatigue life, impact strength, corrosion resistance, etc.) and being lighter than conventional engineering materials, composites have become very important in defense industry as well. In spite of the fact that some of
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Ranking of Al-CSA composite by MCDM approach using AHP–TOPSIS and MOORA methods J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-05-21 Siva S Raju; Gunji B Murali; Prabina K Patnaik
Abstract A systematic and efficient approach for the selection of material is necessary to choose a best alternative for the structure or component under consideration. The multi-criteria decision making (MCDM) approaches are well suited to deal intricacy in judgment of material assortment. In this paper, integrated MCDM approaches like analytical hierarchy process (AHP)–technique for order preference
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Assessment of contact-induced damage mechanisms in thick-walled composite cylinders J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-05-19 Ruben AJ Weerts; Olivier Cousigné; Klaas Kunze; Marc GD Geers; Joris JC Remmers
Abstract In order to unravel the damage mechanisms occurring in composite-overwrapped pressure vessels (COPVs) subjected to crash conditions, a combined experimental-numerical study has been performed. For the purpose of generality and simplicity, quasi-static contacts on filament-wound cylinders are considered in this paper, as a precursor for geometrically complex impacts on COPVs. Rings with different
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Static analysis of co-cured composite structures with double-layer damping membranes embedded J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-05-07 Shaoqing Wang; Sen Liang; Changsheng Zheng; Yanchun Zhai; Yangyang Yan
The purpose of this study is to determine the effects of various parameters on the deflection value and strain energy for the individual stress of a co-cured composite structure with double-layer damping membranes embedded (CCSDDME) simply supported on four edges. To achieve this goal, an analytical solution (double Fourier sine series) was developed for the deflection of an embedded co-cured damping
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A comparison of mechanical properties and X-ray tomography analysis of different out-of-autoclave manufactured thermoplastic composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-05-07 Diego Saenz-Castillo; María I Martín; Vanessa García-Martínez; Abhiram Ramesh; Mark Battley; Alfredo Güemes
Three different out-of-autoclave manufacturing processes of CF/poly-ether-ether-ketone thermoplastic composites were characterized, including innovative laser-assisted automated fibre placement with in situ consolidation. Characterization techniques included differential scanning calorimetry, ultrasonic non-destructive testing and matrix digestion, in addition to 3D X-ray microcomputed tomography to
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Effect of stainless-steel wire mesh embedded into fibre-reinforced polymer facings on flexural characteristics of sandwich structures J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-05-05 Çağrı Uzay; Necdet Geren
In this study, flexural characteristics of low-density polyvinylchloride foam core sandwich structures consist of carbon fibre/epoxy facings hybridised with very thin stainless-steel wire mesh sheets were investigated. A comprehensive work was conducted considering the following design parameters: core thicknesses, wire mesh sizes, stacking sequences of wire mesh sheets and support span lengths for
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Crashworthiness of polystyrene foam and cardboard panels reinforced with carbon fiber reinforced polymer and glass fiber reinforced polymer composite rods J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-05-04 Gabriel Y Fortin; Elsayed A Elbadry; Atsushi Yokoyama
This article presents an experimental study on the quasi-static crushing performance of carbon fiber reinforced polymer (CFRP) rods consisting of unidirectional carbon fibers wrapped by braided glass fibers. Rods with and without a taper are tested and then inserted in extruded and expanded polystyrene foam and cardboard panels. Hybrid columnar aluminum tube–CFRP rod structures are also tested in all
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Machine learning predictions on fracture toughness of multiscale bio-nano-composites J. Reinf. Plast. Compos. (IF 1.987) Pub Date : 2020-04-27 Vahid Daghigh; Thomas E Lacy, Jr; Hamid Daghigh; Grace Gu; Kourosh T Baghaei; Mark F Horstemeyer; Charles U Pittman, Jr
Tailorability is an important advantage of composites. Incorporating new bio-reinforcements into composites can contribute to using agricultural wastes and creating tougher and more reliable materials. Nevertheless, the huge number of possible natural material combinations works against finding optimal composite designs. Here, machine learning was employed to effectively predict fracture toughness