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International Journal for Multiscale Computational Engineering

年間 6 号発行

ISSN 印刷: 1543-1649

ISSN オンライン: 1940-4352

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: 1.4 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: 1.3 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 2.2 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: 0.00034 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: 0.46 SJR: 0.333 SNIP: 0.606 CiteScore™:: 3.1 H-Index: 31

Indexed in

Modeling of Viscoelastic Behavior of Ballistic Fabrics at Low and High Strain Rates

巻 7, 発行 4, 2009, pp. 295-308
DOI: 10.1615/IntJMultCompEng.v7.i4.50
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要約

Ballistic fabrics are made from high-performance polymeric fibers such as Kevlar®, Twaron®, and Spectra® fibers. These fibers often behave viscoelastically. The Kelvin-Voigt and Maxwell rheological (viscoelasticity) models have been used to characterize stress-strain relations of such fabrics at different strain rates. However, these two-parameter models have been found to be inadequate and inaccurate in some applications. As a result, three-parameter rheological models have been utilized to develop constitutive relations for viscoelastic polymeric fabrics. In this article, a generalized Maxwell (GM) model and a generalized Kelvin-Voigt (GKV) model, which are both three-parameter viscoelasticity models, are proposed to describe the viscoelastic behavior of a ballistic fabric, Twaron® CT716, at the strain rates of 1 s-1 and 495 s-1. The GM model consists of a Maxwell element (including a viscous dashpot and a spring in series) and a second spring in parallel to the Maxwell element, while the GKV model is an assembly of a Kelvin-Voigt (KV) element (containing a viscous dashpot and a spring in parallel) and a second spring in series with the KV element. The predictions by the GM and GKV models are compared with existing experimental data, which reveals that the GKV model gives more accurate results at the low strain rate, whereas the GM model performs better at the high strain rate while still providing accurate predictions for the low strain rate responses.

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によって引用された
  1. David N. V., Gao X.-L., Zheng J. Q., Stress Relaxation of a Twaron®/Natural Rubber Composite, Journal of Engineering Materials and Technology, 133, 1, 2011. Crossref

  2. David* N. V., Gao X.-L., Zheng J. Q., Constitutive Behavior of a Twaron®/Natural Rubber Composite, Mechanics of Advanced Materials and Structures, 17, 4, 2010. Crossref

  3. Gogineni S., Gao X. -L., David N. V., Zheng J. Q., Ballistic Impact of Twaron CT709® Plain Weave Fabrics, Mechanics of Advanced Materials and Structures, 19, 6, 2012. Crossref

  4. Luan Kun, Sun Baozhong, Gu Bohong, Ballistic impact damages of 3-D angle-interlock woven composites based on high strain rate constitutive equation of fiber tows, International Journal of Impact Engineering, 57, 2013. Crossref

  5. Kulkarni S.G., Gao X.-L., Horner S.E., Zheng J.Q., David N.V., Ballistic helmets – Their design, materials, and performance against traumatic brain injury, Composite Structures, 101, 2013. Crossref

  6. David N. V., Gao X.-L., Zheng J. Q., Creep of a Twaron®/Natural Rubber Composite, Mechanics of Advanced Materials and Structures, 20, 6, 2013. Crossref

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