Journal of Composite Materials (J COMPOS MATER)

Publisher: Washington University (Saint Louis, Mo.); Monsanto Company; American Society for Composites, SAGE Publications

Journal description

The Journal of Composite Materials is the leading journal of advanced composite materials technology and is ranked number one by the ISI Journal Citation Report by impact factor for materials science, composites. Topics include theoretical and experimental findings on the physical and structural properties of high performance, multiphase materials. Both phenomenological and mechanistic approaches and their interrelations are emphasized. Fracture, fatigue, structural reliability, and design criteria are given special attention. Applications of advanced composites are now increasing in military, industrial and consumer products. The Journal of Composite Materials, continues to be the leading medium for composite materials technology transfer.

Current impact factor: 1.26

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 1.257
2012 Impact Factor 0.936
2011 Impact Factor 1.068
2010 Impact Factor 0.968
2009 Impact Factor 0.806
2008 Impact Factor 1.034
2007 Impact Factor 0.957
2006 Impact Factor 0.693
2005 Impact Factor 0.671
2004 Impact Factor 0.604
2003 Impact Factor 0.597
2002 Impact Factor 0.806
2001 Impact Factor 0.73
2000 Impact Factor 0.832
1999 Impact Factor 0.713
1998 Impact Factor 0.589
1997 Impact Factor 0.805
1996 Impact Factor 0.807
1995 Impact Factor 0.804
1994 Impact Factor 0.833
1993 Impact Factor 1.014
1992 Impact Factor 0.875

Impact factor over time

Impact factor
Year

Additional details

5-year impact 1.18
Cited half-life 0.00
Immediacy index 0.40
Eigenfactor 0.01
Article influence 0.40
Website Journal of Composite Materials website
Other titles Journal of composite materials, Composite materials, JCM
ISSN 0021-9983
OCLC 1754514
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

SAGE Publications

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Authors retain copyright
    • Pre-print on any website
    • Author's post-print on author's personal website, departmental website, institutional website or institutional repository
    • On other repositories including PubMed Central after 12 months embargo
    • Publisher copyright and source must be acknowledged
    • Publisher's version/PDF cannot be used
    • Post-print version with changes from referees comments can be used
    • "as published" final version with layout and copy-editing changes cannot be archived but can be used on secure institutional intranet
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Composite shafts can be damaged because of unsuitable production, mistaken assemblage, and excessive strain. Repairing of damaged composite shafts with patch or an alternative approach is an economical solution. This study aims to enhance the tensile, compressive, and four-point bending loads of notched E-glass/vinylester composite pultruded shafts by repairing with different patch materials. For this purpose, the notched composite shafts having 1 mm, 1.5 mm, and 2 mm notch depths were repaired with E-glass woven fabric, rib knitting fabric, and milano knitting fabric with 30 mm, 50 mm, and 70 mm widths by winding method. The results of the repaired composite shafts were compared with unrepaired composite shaft to better understand the influence of type and width of patch and notch depth on the critical damage load. The results showed that the repairing with E-glass woven and knitting patches increased the critical damage load of notched composite shafts by about 67%.
    Journal of Composite Materials 08/2015; DOI:10.1177/0021998314541569
  • Journal of Composite Materials 06/2015;
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    ABSTRACT: The electrochemical and mechanical performance of composite anodes for Li+ batteries is greatly affected by the matrix porosity. The role of porosity in the retention of the electrochemical capacity and mechanical durability was investigated for composite anodes with polyvinylidene fluoride/acetylene black matrix and graphite or Sn microscale particles. Graphite anodes with porosities between 40% and 50% demonstrated reliable mechanical performance after electrochemical cycling and consistent electrochemical capacity above 45% porosity cycled at C/5 rate. However, graphite anodes with porosities larger than 50% had negligible mechanical strength. The results of the mechanical and electrochemical studies identified an optimum porosity of ∼45% at which the graphite anodes had the highest initial elastic modulus and good strength and extensibility, which also agreed with the properties of the polyvinylidene fluoride/acetylene black matrix for the same porosity. The mechanical performance of Sn anodes, however, was quite inferior to that of graphite, which was largely due to the large volumetric expansion of the Sn particles in the first lithiation cycle.
    Journal of Composite Materials 06/2015; 49(15). DOI:10.1177/0021998314568653
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    ABSTRACT: It is extremely challenging to imitate neural networks with their high-speed parallel signal processing, low power consumption, and intelligent learning capability. In this work, we report a spike neuromorphic module composed of “synapstors” made from carbon nanotube/C60/polyimide composite and “CMOS Somas” made from complementary metal-oxide semiconductor electronic circuits. The “synapstor” emulates a biological synapse with spike signal processing, plasticity, and memory; the “CMOS Soma” emulates a Soma in a biological neuron with analog parallel signal processing and spike generation. Spikes, short potential pulses, and input to the synapstors trigger postsynaptic currents and generate output spikes from the CMOS Somas in a parallel manner with low power consumption. The module can be modified dynamically on the basis of the synapstor plasticity. Spike neuromorphic modules could potentially be scaled up to emulate biologic neural networks and their functions.
    Journal of Composite Materials 06/2015; 49(15). DOI:10.1177/0021998315573559
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    ABSTRACT: Structural electrochemical composites, which are capable of carrying mechanical loads while simultaneously storing or releasing electrical energy, combine the components and behaviors of conventional polymer composite structures and electrochemical devices such as batteries and supercapacitors into a single multifunctional material. In order to analyze these systems more rigorously, this paper derives relationships and metrics for the mass savings of a multifunctional design relative to a design consisting of conventional structures and electrochemical devices. These metrics are then evaluated using structural supercapacitors composed of carbon fiber electrodes and conductive solid polymer electrolytes, as well as multifunctional supercapacitors from literature. The analysis reveals that state-of-the-art multifunctional supercapacitors are still far from reaching the levels of performance needed to supplant conventional structures and save system mass. The metrics provide further insight regarding multifunctional value of the material components as well as influence of various functionalities on system performance.
    Journal of Composite Materials 06/2015; 49(15). DOI:10.1177/0021998314568167
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    ABSTRACT: A theoretical model is developed to study the fiber debonding and pull-out in hybrid-fiber-reinforced brittle-matrix composites. By adopting the shear-lag model which includes the matrix shear deformation in the bonding region and friction in the debonding region, the relationship between the pull-out length and the debonding length of fiber is obtained by treating the interface debonding as a particular crack propagation problem along the interface. The interface debonding criterion for the hybrid-fiber-reinforced composites is obtained by applying the energy release rate relation in an interface debonding process. The analysis is applied to hybrid carbon/glass fiber-reinforced epoxy composites, and the theoretical results have a reasonable agreement with the experimental data. The hybrid effect is studied and the effect of material parameters is discussed.
    Journal of Composite Materials 06/2015; 49(14):1739-1751. DOI:10.1177/0021998314540191
  • Journal of Composite Materials 06/2015; 49(15):1797-1798. DOI:10.1177/0021998315578247
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    ABSTRACT: A series of TWRP-AO 2246 composites consisting of textile waste rubber powder (TWRP), 2, 2-methylene-bis-(4-methyl-6-tert-butyl-phenol) (AO 2246) was fabricated. The damping property of composites was tested by dynamic mechanical thermal analysis (DMA); the morphology was characterized by scanning electron microscopy (SEM); the composites’ structure was characterized by Fourier transform infrared spectroscopy (FTIR); and differential scanning calorimetry (DSC) was investigated. DMA results showed that TWRP-AO 2246 composites appeared in only one damping peak when AO 2246 content was less than 30%, and the tan δ peak value as well as its corresponding temperature increased gradually with increasing AO 2246 content. However, a novel damping peak appeared far away the glass-transition temperature peak of composite with 40% AO 2246 concentration, and a great damping platform was constructed between double peaks with a wide temperature range spanning more than 100℃, which is attributed to the dissociation of intermolecular hydrogen bonds in AO 2246 enriched phase and thus realized phase separation. Meanwhile, the presence of intermolecular hydrogen bonds in the composite was confirmed by FTIR. Thus, a new type of high performance damping composite with TWRP as a matrix was developed.
    Journal of Composite Materials 05/2015; DOI:10.1177/0021998315585331
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    ABSTRACT: This paper presents an approach to defect detection and characterisation in ultrasonic inspection of laminate composite panels. A set of features coupled with gates was identified along with a method for sub-dividing and thresholding the ultrasonic data, which removes most of the location specific information from the defect data thus increasing the generalisation capabilities of the defect classifier. Validation results obtained from independent defect data indicate that the performance of the presented data description tools coupled with an artificial neural network classifier was able to correctly locate and classify defects at different depths. It was concluded that a structured approach to the pre-processing of ultrasonic testing data, combined with the selective feature extraction for artificial neural network classification, greatly reduces the requirement for artificial neural network training data. Furthermore, it allows for improved performance across a variety of panel geometries.
    Journal of Composite Materials 05/2015; DOI:10.1177/0021998315584651
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    ABSTRACT: A new kind of higher order analysis model is presented for sandwich plates with flexible core, especially “soft” core. The governing equations derived from equilibrium differential equations of motions are analytically solved for simply supported sandwich plate with a flexible core. The Navier-type solutions for free vibration analysis and static bending are presented for sinusoidal and uniformly distributed loads. The accuracy and convergence of the present theory and solution are ascertained by comparing with various available results, the author considered vary of length-to-width ratios, Young’s modulus ratios between skins and core, thickness ratios between skins and core, and span-to-thickness of sandwich plates. The results show that the present theory can achieve the great accuracy for sandwich plate with flexible core by comparing with existing classical plate theory, first-order shear deformation, higher order shear deformation theory, and finite element software ANSYS.
    Journal of Composite Materials 05/2015; DOI:10.1177/0021998315584650
  • [Show abstract] [Hide abstract]
    ABSTRACT: Void characterization and porosity measurements of uncured and partially cured carbon/epoxy prepregs are challenging due to the soft nature of the matrix. If samples need to be cut from a larger laminate, the act of cutting and polishing can alter the void morphology. This paper presents a method to prepare samples for optical microscopy by infiltrating the pore space in the soft prepreg with a room-temperature curing low-viscosity resin to support the structure during cutting and polishing in preparation for optical microscopy. The methodology is validated by comparison with results obtained from porosity measurements using the ASTM D2734 standard density method. The paper also explores the use of thickness measurements to determine porosity. It is shown that thickness measurements can be used to estimate porosity for the no-bleed out-of-autoclave prepreg system used in the present study but that the accuracy is lower than using microscopy or density methods.
    Journal of Composite Materials 05/2015; DOI:10.1177/0021998315583924
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    ABSTRACT: Laminates of fibre-reinforced prepreg have excellent in-plane mechanical properties, but have inadequate performance in the through thickness direction. Here, we address this issue by application of epoxy-terminated butadiene nitrile (ETBN) liquid rubber between the prepreg laminae using an automatic draw bar coating technique. Test results reveal that by adding ETBN in small quantities in the range of 9.33–61.33 g/m2, the interlaminar critical energy release rates (GIc and GIIc) are improved by up to 122% in mode-I and 49% in mode-II. Moreover, this finding is further supported by the dynamic mechanical analysis thermograms that clearly indicate that coating has not altered the Tg of ETBN-coated samples. Scanning electron microscopic analysis of fracture surfaces showed that rubber particles formed micro cavitations in the epoxy, causing localised rubber rich regions. These resin-rich regions require more energy to fracture, resulting in increased toughness of the glass epoxy prepreg systems.
    Journal of Composite Materials 05/2015; DOI:10.1177/0021998315583317