대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제30권3호
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  • Pages.260-268
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  • 2006
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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불규칙 섬유배열을 가진 일방향 복합재료의 경계면 변형률 분포 해석

Interfacial Strain Distribution of a Unidirectional Composite with Randomly Distributed Fibers

  • 하성규 (한양대학교 기계정보경영공학부) ;
  • 진교국 (한양대학교 대학원 기계설계학과) ;
  • 오제훈 (한양대학교 기계정보경영공학부)
  • 발행 : 2006.03.01
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초록

The micromechanical approach was used to investigate the interfacial strain distributions of a unidirectional composite under transverse loading in which fibers were usually found to be randomly packed. Representative volume elements (RVE) for the analysis were composed of both regular fiber arrays such as a square array and a hexagonal array, and a random fiber array. The finite element analysis was performed to analyze the normal, tangential and shear strains at the interface. Due to the periodic characteristics of the strain distributions at the interface, the Fourier series approximation with proper coefficients was utilized to evaluate the strain distributions at the interface for the regular and random fiber arrays with respect to fiber volume fractions. From the analysis, it was found that the random arrangement of fibers had a significant influence on the strain distribution at the interface, and the strain distribution in the regular fiber arrays was one of special cases of that in the random fiber array.

키워드

참고문헌

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피인용 문헌

  1. Prediction of mechanical properties of MWCNT-reinforced composites using the RVE model vol.32, pp.18, 2018, https://doi.org/10.1142/S0217984918501968