Composites Research

  • 제29권1호
  • /
  • Pages.33-39
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  • 2016
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  • 2288-2103(pISSN)
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  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
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굴곡각에 따른 3차원 평직 복합재료의 등가 물성치 예측

Crimp Angle Dependence of Effective Properties for 3-D Weave Composite

  • Choi, Yun-Sun (Dept. of Civil Systems Engineering, Chungbuk National University) ;
  • Woo, Kyeongsik (School of Civil Engineering, Chungbuk National University)
  • 투고 : 2015.11.23
  • 심사 : 2016.02.24
  • 발행 : 2016.02.29
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 3차원 평직 복합재료의 3-방향 섬유다발의 굴곡각에 따른 다양한 모델링을 구축하고, 제시한 모델에 대하여 등가 물성치를 예측하였다. 3차원 평직복합재료의 단위셀을 정의하고 미시역학 계산결과인 섬유다발 물성치를 사용하여 섬유다발에 굴곡각에 따라 물성치가 변화하도록 요소 물성축을 설정 후 3차원 평직 복합재료의 중시해석을 수행하였다. 계산결과 등가물성치는 참고문헌에 제시된 해석 및 실험값을 비교하여 타당성을 확보하였으며 계산결과 3-방향 섬유다발 굴곡각이 미치는 영향에 대하여 고찰하였다. 또한 초기파손 강도와 파손순서에 대해서도 조사하였다.

In this study, geometric modeling and finite element analysis of 3-dimensional plain weave composite unit cell consisting of 3 interlaced fiber tows and resin pocket were performed to predict effective properties. First, tow properties were obtained from micro-mechanics finite element unit cell analysis, which were then used in the meso-mechanics analysis. The effective properties were obtained from a series of unit cell analyses simulating uniaxial tensile and shear tests. Analysis results were compared to the analysis and experimental results in the literature. Various crimp angles were considered and the effect on the effective properties was investigated. Initial failure strengths and failure sequence were also examined.

키워드

참고문헌

  1. Badawi, S.S., "Development of the Weaving Machine and 3D Woven Spacer Fabric Structures for Lightweight Composites Materials", PhD Thesis, Dresden University, Germany, 2007.
  2. Bogdanovich, A.E., "Multi-scale Modeling Stress and Failure Analyses of 3-D Woven Composites", Journal of Material Science, Vol. 41, 2006, pp. 6547-6590. https://doi.org/10.1007/s10853-006-0197-2
  3. Woo, K. and Whitcomb, J.D., "Three-dimentional Failure Analysis of Plain Weave Textile Composites Using a Global/Local Finite Element Method", Journal of Composite Materials, Vol. 30, No. 9, 1996, pp. 984-1003. https://doi.org/10.1177/002199839603000902
  4. Fowser, S.,"In: Proceedings of 3-D Composites, Working-group Meeting Sponsored by NASA Langley Research Center and the Department of the Navy", NASA Conference Publication 2420, 1985, pp. 91-108.
  5. Rao, M.P., Sankar, B.V., and Subhash, G., "Effect of Z-yarns on the Stiffness and Strength of Three-dimensional Woven Composites", Journal of Composite Materials, 2009, pp. 540-551.
  6. Topal, S., Ogin, S., Crocombe, A., and Potluri, P., "Finite Element Modeling of 3D Orthogonal Non-crimp Woven Composites", Proceeding of the the 11th WCCM, Barcelona, Spain, 2014.
  7. Woo, K. and Suh, Y., "Prediction of Effective Properties of Laminated Plain Weave Textile Composires", Journal of The Korean Society for Aeronautical and Space Sciences, Vol. 31, No. 10, 2003, pp. 10-20. https://doi.org/10.5139/JKSAS.2003.31.10.010
  8. Xia, Z., Zhou, C., Yong, Q., and Wang, X., "On Selection of Repeated Unit Cell Model and Application of Unified Periodic Boundary Conditions in Micro-mechanical Analysis of Composites", Journal of Solids and Structures, Vol. 43, Iss. 2, 2006, pp. 266-278. https://doi.org/10.1016/j.ijsolstr.2005.03.055

피인용 문헌

  1. 단방향 연속 섬유 복합재 횡단면에서 섬유 배열에 따른 응력 분포 변화 vol.33, pp.1, 2016, https://doi.org/10.7234/composres.2020.33.1.030