• Title/Summary/Keyword: micromechanic

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Analysis of Structure and Prediction of Mechanical Properties for 3D Composites (3D 복합재료의 구조해석 및 기계적 물성 예측)

  • 유근수;전흥재;변준형;이상관
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2002.10a
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    • pp.292-295
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    • 2002
  • In this paper, an analytical model for the prediction of the elastic properties of multi-axial warp knit fabric (MWK) composites is proposed. The geometric limitation, effect of stitching fibers and design parameters of MWK composites are considered in the model. The elastic behavior of MWK composites was conducted by using an averaging method. The predicted elastic properties are in reasonably good agreement with experimental values. Finally the effect of stitching in the MWK composites are discussed.

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Analytical Prediction of Elastic Properties of Laminated Pultrusion FRP Composite Material (인발성형 적층 FRP 복합소재 재료상수의 해석적 추론)

  • Kang, Jin-Ock;Zureick, Abdul-Hamid
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2002.10a
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    • pp.17-24
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    • 2002
  • 인발성형 적층 FRP 복합소재의 재료상수는 일반적으로 시편실험을 통해 구해지고 있으나, 본 논문에서는, 실험에서 구한 탄성계수가 부재일 경우를 위해, Micromechanics와 Classical Laminate Theory (CLT)를 이용한 적층 FRP 복합재료의 탄성계수(E/sub L/과 E/sup b//sub L/) 예측모델을 제시하였다 또한 예측모델로부터 구한 값과 실험으로부터 얻은 실측값을 비교하여 그 적정성을 검증하였고, 예측모델의 민감도 및 확률적인 특성을 구성소재 (Constituents)의 재료특성에 근거해 평가하였다.

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