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Different approaches for calculating the effective elastic properties in composite materials under imperfect contact adherence

机译：不完全接触附着力下复合材料有效弹性性能的不同计算方法

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摘要

The imperfect contact conditions can be created by chemical reactions between the fiber and matrix materials or man-made interface design, such as surface modification of reinforced phase by using coating in order to enhance wetting property or due to environment effects. Although the problem of elastic properties of the composite materials with imperfect fiber-matrix interface has been addressed in a large number of research studies, in this work, there is an investigation about three different approaches, which have specific mathematical formulations and unique characteristics. Thus, the results provided by Asymptotic Homogenization Method (AHM) with some specific considerations, which are assumed, are compared to Semi Analytic Method (SAM) and Representative Volume Element (RVE) approach solved by Finite Element Method (FEM). The differences between the three approaches are normally less than 1%. Also, the results obtained by the investigated approaches are compared to the experimental data and literature, addressing a discussion about limitations and potentials of each one.
机译：纤维和基体材料之间的化学反应或人为的界面设计（例如通过使用涂层以增强润湿性或由于环境影响而对增强相进行表面改性）可能会产生不完美的接触条件。尽管在许多研究中已经解决了具有不完美的纤维-基体界面的复合材料的弹性特性的问题，但是在这项工作中，我们对三种不同的方法进行了研究，它们具有特定的数学公式和独特的特性。因此，将渐进均质化方法（AHM）提供的结果（考虑了一些具体考虑）与半解析方法（SAM）和有限元方法（FEM）解决的代表体积元素（RVE）方法进行了比较。三种方法之间的差异通常小于1％。此外，将通过研究方法获得的结果与实验数据和文献进行比较，从而讨论了每种方法的局限性和潜力。

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  • 来源
    《Composite Structures》 |2013年第5期|264-275|共12页
  • 作者

    Reinaldo Rodriguez-Ramos; Ricardo de Medeiros; Raul Guinovart-Diaz; Julian Bravo-Castillero; Jose Antonio Otero; Volnei Tita;

  • 作者单位

    Departamento de Matematicas, Facultad de Matematica y Computacion, Universidad de La Habana, San Lazaro y L.CP 10400 Vedado, Habana 4, Cuba;

    Department of Aeronautical Engineering, Engineering School of Sao Carlos, University of Sao Paulo, Av. Joao Dagnone, 1100 Sao Carlos, SP, Brazil;

    Departamento de Matematicas, Facultad de Matematica y Computacion, Universidad de La Habana, San Lazaro y L.CP 10400 Vedado, Habana 4, Cuba;

    Departamento de Matematicas, Facultad de Matematica y Computacion, Universidad de La Habana, San Lazaro y L.CP 10400 Vedado, Habana 4, Cuba;

    Departamento de Fisica Aplicada, Instituto de Cibemetica, Matem&tica y Fisica (ICIMAF), Calle 15 No. 551, CP 10400 Vedado, Habana 4, Cuba;

    Department of Aeronautical Engineering, Engineering School of Sao Carlos, University of Sao Paulo, Av. Joao Dagnone, 1100 Sao Carlos, SP, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    effective properties; imperfect contact; periodic composites; asymptotic homogenization method; finite element method;

    机译：有效特性接触不良;周期性复合材料;渐近均质化方法;有限元法;

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