Journal of Materials Science

, Volume 41, Issue 20, pp 6647–6654 | Cite as

Multi-scale modeling of refractory woven fabric composites

Article

Abstract

Thermomechanical analysis of a refractory, woven fabric composite was conducted using a multi-scale analysis technique. The composite was made of carbons and ceramic materials. The fibers were made of carbons and the outer coating was made of a ceramic material. In order to reduce the thermal stress in the carbon fibers and the ceramic material caused by mismatch of coefficients of thermal expansion between the two materials, a graphitized carbon layer was introduced between the fiber and the ceramic coating. For the multi-scale analysis, a new analysis model was developed and used to bridge the micro-scale characteristics, i.e. the constituent material level such as carbon and ceramic materials, to the macro-scale behavior, i.e. the woven fabric composite level. Furthermore, finite element analyses were undertaken with discrete modeling of the representative fibers, coating, and the graphitized middle layers. Then, both multi-scale analytical and numerical results were compared. In this study, thermal stresses at the micro-level, i.e. in the fibers and coating materials, as well as effective thermomechanical properties of the refractory composites were computed using the multi-scale technique.

Keywords

Thermal Stress High Thermal Stress Weak Interlayer Weave Fabric Composite Refractory Composite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Tauchert TR, Hetnarski RB (1986) J. Thermal Stresses 9:1Google Scholar
  2. 2.
    Keene FW, Hetnarski RB (1990) J. Thermal Stresses 13:343Google Scholar
  3. 3.
    Ashida F, Tauchert TR (2003) Acta Mech 161:1CrossRefGoogle Scholar
  4. 4.
    Barut A, Madenci E (2004) J. Thermal Stresses 27:1Google Scholar
  5. 5.
    Kwon YW, Burner JM (1997) Comput Struct 64:375CrossRefGoogle Scholar
  6. 6.
    Aboudi J (1989) Appl Mech Rev 42:193CrossRefGoogle Scholar
  7. 7.
    Sinha AK, Kokini K (1991) J. Thermal Stresses 14:1Google Scholar
  8. 8.
    Kwon YW, Kim C (1998) J Thermal Stresses 21:21Google Scholar
  9. 9.
    Kwon YW, Cho WM (2004) J Thermal Stresses 27:59Google Scholar
  10. 10.
    Kwon YW (1993) Composite Structures 25:187CrossRefGoogle Scholar
  11. 11.
    Cox BN, Flanagan G (1997) NASA Contractor Report 4750Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.Department of Mechanical and Aeronautical EngineeringNaval Postgraduate SchoolMontereyUSA
  2. 2.Department of Mechanical Engineering and Energy ProcessesSouthern Illinois UniversityCarbondaleUSA

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