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Effect of Debond and Randomness on Thermal Conductivities of Hollow Fiber Composites

  • G. SrivalliEmail author
  • G. Jamuna Rani
  • V. Balakrishna Murthy
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

A hollow fiber composite provides more flexibility to tailor the required material properties when compared to solid fiber composite. In the present work, an attempt has been made to steady the micromechanical thermal behavior of a hollow fiber composite using a finite element software ANSYS, and the thermal conductivities of the composite material are determined. The inner and outer diameters of hollow fiber are selected for the volume fractions of void, fiber and matrix equal to 0.2, 0.44 and 0.36, respectively. Finite element models are validated with rule of mixtures for longitudinal conductivity and further extended for the prediction of transverse thermal conductivity. Effect of fiber–matrix interface debond and fiber randomness on thermal conductivity of the composite is studied for a range of values of conductivity ratio of fiber to matrix. From the present study, it is observed that transverse thermal conductivity is influenced by debond and randomness, and deviation in this property from that of a regular model is more with more mismatch in the properties of constituents.

Keywords

FEM Thermal conductivity Hollow random fiber Interface debond 

References

  1. 1.
    Benveniste, Y.: The effective conductivity of composites with imperfect thermal contact at constituent interfaces. Int. J. Eng. Sci. 24(9), 1537–1552 (1986)CrossRefGoogle Scholar
  2. 2.
    Wang, J.: Effects of interfacial thermal barrier resistance and particle size and shape on the thermal conductivity of AIN/PI composites. Comput. Sci. Technol. 64, 1623–1628 (2004)CrossRefGoogle Scholar
  3. 3.
    Lee, Y.-M.: A generalised self-consistent method for calculation of effective thermal conductivity of composites with interfacial contact conductance. Int. Commun. Heat Mass Transfer 33, 142–150 (2006)CrossRefGoogle Scholar
  4. 4.
    Hasselman, D.P.H.: Effective thermal conductivity of composites with interfacial thermal Barrier resistance. J. Compos. Mater. 21, 508–514 (1987)CrossRefGoogle Scholar
  5. 5.
    Lu, S.-Y.: Effect of interfacial characteristics on effective conductivities of composites containing randomly distributed aligned long fibers. Chem. Eng. Sci. 15(19), 4393–4404 (1996)CrossRefGoogle Scholar
  6. 6.
    Sihn, S.: Micromechanical analysis for transverse thermal conductivity of composites. J. Compos. Mater. 1–11 (2010)Google Scholar
  7. 7.
    Huang, Z.M.: Simulation of the mechanical properties of fibrous composites by the bridging micromechanics model. Composites 32, 143–173 (2001)CrossRefGoogle Scholar
  8. 8.
    Srinivasa Rao, T.: Transverse thermal conductivity of hollow fiber composites. Int. J. Eng. Technol. Sci. Res. 5(5), 389–394 (2018)Google Scholar
  9. 9.
    Wang, M.: Thermal conductivity enhancement of carbon fiber composites. Science Direct 29(2), 418–421 (2009)Google Scholar
  10. 10.
    ANSYS reference manuals from InternetGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • G. Srivalli
    • 1
    Email author
  • G. Jamuna Rani
    • 1
  • V. Balakrishna Murthy
    • 1
  1. 1.Mechanical Engineering DepartmentV. R. Siddhartha Engineering CollegeVijayawadaIndia

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