한국건설순환자원학회논문집 (Journal of the Korean Recycled Construction Resources Institute)

한국건설순환자원학회 (Korean Recycled Construction Resources Institute)
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음의 포아송비 거동 격자체로 보강한 시멘트 복합체의 압축특성 실험평가

Experimental Evaluation of Compressive Characteristics of Cementitious Composites Reinforced by Auxetic Mesh

  • 김원우 (한국건설기술연구원 구조융합연구소) ;
  • 이장화 (한국건설기술연구원 구조융합연구소) ;
  • 문재흠 (한국건설기술연구원 구조융합연구소)
  • Kim, Won-Woo (Structural Engineering Research Institute, Korea Institute of Civil engineering and Building Technology) ;
  • Lee, Jang-Hwa (Structural Engineering Research Institute, Korea Institute of Civil engineering and Building Technology) ;
  • Moon, Jae-Heum (Structural Engineering Research Institute, Korea Institute of Civil engineering and Building Technology)
  • 투고 : 2017.06.12
  • 심사 : 2017.06.21
  • 발행 : 2017.06.30
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초록

본 연구는 압축하중 하의 콘크리트에 음의 포아송비 거동 격자체를 보강함으로서 역학적 특성에 효과가 있는지를 검토하였다. 이중화살촉 형상의 2차원 음의 포아송비 격자체를 종류별로 제작하여 콘크리트 시험체에 매립하였다. 압축시험을 수행한 결과, 음의 포아송비 격자체를 콘크리트에 매립함으로써 콘크리트의 변형을 구속함에 의해 복합체의 강성을 향상시킬 수 있음을 확인하였다.

This study observed the effects of auxetic mesh reinforcement in concrete on the mechanical characteristics under compression. Series of double arrow type 2-D auxetic mesh were manufactured and embedded into concrete specimens. Compression tests were performed and results showed that the application of auxetic mesh as concrete reinforcement can restrain the deformation of concrete resulting in the enhancement of stiffness of composites.

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참고문헌

  1. Elipe, Juan C.A., Lantada, Andres D. (2012). Comparative study of auxetic geometries by means of computer-aided design and engineering, Smart Materials and Structures, 21(10), p.105004(12pp) https://doi.org/10.1088/0964-1726/21/10/105004
  2. Grima, J.N., Gatt, R., Ravirala, N., Alderson, A., Evans, K.E. (2006). Negative poisson's ratios in cellular foam materials, Materials Science and Engineering, 423, 214-218. https://doi.org/10.1016/j.msea.2005.08.229
  3. Kim, W.W., Lee, J.H., Moon, J.H. (2017). A preliminary study of applicability of auxetic mesh for construction industry, Journal of the Korea Institute for Structural Maintenance andInspection, (Accepted-to be published in 2017) [in Korean].
  4. Qiao, J.X., Chen, C.Q. (2015). Impact resistance of uniform and functionally graded auxetic double arrowhead honeycombs, Impact Engineering, 83, 47-58. https://doi.org/10.1016/j.ijimpeng.2015.04.005