Journal of the Computational Structural Engineering Institute of Korea (한국전산구조공학회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Multiscale Virtual Testing Machines of Concrete and Other Composite Materials: A Review

콘크리트 및 복합재료용 멀티스케일 가상 시험기계에 관한 소고

  • Haile, Bezawit F. (Department of Civil and Environmental Engineering, Korea Institute of Science and Technology(KAIST)) ;
  • Park, S.M. (Department of Civil and Environmental Engineering, Korea Institute of Science and Technology(KAIST)) ;
  • Yang, B.J. (Institute of Advanced Composite Materials, Korea Institute of Science and Technology(KIST)) ;
  • Lee, H.K. (Department of Civil and Environmental Engineering, Korea Institute of Science and Technology(KAIST))
  • ;
  • 박솔뫼 (한국과학기술원 건설 및 환경공학과) ;
  • 양범주 (한국과학기술연구원 복합소재기술연구소) ;
  • 이행기 (한국과학기술원 건설 및 환경공학과)
  • Received : 2018.04.30
  • Accepted : 2018.07.09
  • Published : 2018.08.31
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Abstract

Recently composite materials have dominated most engineering fields, owing to their better performance, increased durability and flexibility to be customized and designed for a specific required property. This has given them unprecedented superiority over conventional materials. With the help of the ever increasing computational capabilities of computers, researchers have been trying to develop accurate material models for the complex and integrated properties of these composites. This has led to advances in virtual testing of composite materials as a supplement or a possible replacement of laboratory experiments to predict the properties and responses of composite materials and structures. This paper presents a review on the complex multi-scale modelling framework of the virtual testing machines, which involve computational mechanics at various length-scales starting with nano-mechanics and ending in structure level computational mechanics, with a homogenization technique used to link the different length scales. In addition, the paper presents the features of some of the biggest integrated virtual testing machines developed for study of concrete, including a multiscale modeling scheme for the simulation of the constitutive properties of nanocomposites. Finally, the current challenges and future development potentials for virtual test machines are discussed.

최근 복합재료는 향상된 성능, 내구성 및 여러 특정 요구성능에 대한 설계 유연성으로 인해 다양한 분야에서 활발히 활용되고 있다. 컴퓨터 성능이 발달함에 따라, 복합재료의 복잡한 거동에 대한 정확도 높은 모델 역시 함께 연구되고 있으며, 이로 인해 가상시험이 복합재료 거동에 대한 실험을 대체하거나 보충하는데 중요한 역할을 하고 있다. 본 논문에서는 나노수준부터 구조물 단위까지 이르는 다양한 length scale의 homogenization을 통한 멀티스케일 모델링에 대한 문헌을 분석하였다. 또한, 콘크리트 거동 연구에 대한 통합모델의 특징을 다루었으며, 가상 시험기계에 대한 최근 연구동향 및 전망에 대하여 다루었다.

Keywords

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