Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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Prediction of Thermal Conductivity of Spatially Reinforced Composites

다방향으로 입체 보강된 복합재의 열전도계수 예측

  • 이상의 (한국과학기술원 기계공학과 항공우주공학전공) ;
  • 유재석 (한국과학기술원 기계공학과 항공우주공학전공) ;
  • 김천곤 (한국과학기술원 기계공학과 항공우주공학전공) ;
  • 홍창선 (한국과학기술원 기계공학과 항공우주공학전공) ;
  • 김광수 (한국항공우주산업 주식회사)
  • Published : 2001.06.01
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Abstract

This paper predicted the thermal conductivity of spatially reinforced composites(SRC) by applying the volume averaging method and the thermal resistance method. The former method employs existing micro-mechanical theories and conventional transformation rules to obtain the constitutive relations for the unit cells of the composites and the latter one uses the analogy between the diffusion of heat and electrical charge. To verify the theoretical predictions, the thermal conductivity of 4-D(dimensional) SRC was examined experimentally. The comparison of the numerical results with those measured by the experiment showed good agreement.

본 연구에서는 체적평균 개념과 열저항 개념을 적용하여 공간적으로 보강된 복합재료의 열전도계수를 예측하였다. 체적평균 개념을 적용한 방법은 기존의 미소기계적 이론들과 좌표변환관계를 이용하고, 열저항 개념을 적용한 방법은 열과 전자의 확산에 대한 유사성을 이용하여 SRC의 단위구조의 열전도계수에 대한 구성방정식을 얻었다. 이론적 예측을 검증하기 위해 4-D SRC에 대해 실험을 수행하였으며, 예측결과와 실험결과가 잘 일치함을 보였다.

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References

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