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Composites: Mechanics, Computations, Applications: An International Journal

年間 4 号発行

ISSN 印刷: 2152-2057

ISSN オンライン: 2152-2073

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00004 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.08 SJR: 0.153 SNIP: 0.178 CiteScore™:: 1 H-Index: 12

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STORAGE AND LOSS MODULI OF CSM COMPOSITES IN THE GLASS-TRANSITION REGION AS DEFINED BY THE INTERPHASE CONCEP

巻 10, 発行 2, 2019, pp. 93-116
DOI: 10.1615/CompMechComputApplIntJ.2018018555
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要約

In this paper, a reliable three-layer model to simulate the periodic structure of a general type of fibrous composites reinforced with randomly oriented short fibers, chopped strand mat (CSM), was taken into account. Hence, the overall material was considered to consist of three separate phases. The central role here is assigned to the intermediate phase lying between the matrix and fibers, named the interphase. This phase has variable properties depending on the properties of the main phases and the mode of preparation of the composite material. In this context, a qualitative study of the storage/loss moduli and loss factor of the composite in the glass-transition region was performed. The glass-transition temperature is defined as the point at which the specific volume versus the temperature curve changes abruptly, and it marks the region of nature between rubberypolymer and glassypolymer. Thus, the thermomechanical behavior of CSM composites was investigated in the transition region. Examination of the glass-transition temperature, which constitutes the upper limit for the structurally important glassy region through the loss factor, was performed by considering this temperature as a combination of the glass-transition temperature of matrix and interphase.

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