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Journal of the Korean Society for Advanced Composite Structures (복합신소재구조학회 논문집)

Korean Society for Advanced Composite Structures (KOSACS)

  • Quarterly
  • /
  • 2093-5145(pISSN)
  • /
  • 2288-0232(eISSN)

Domain

  • Materials ＞ Polymeric Materials

Aim & Scope

The Journal of the Korean Society for Advanced Composite Structures (J. Korean Soc. Adv. Comp. Struc.) (ISSN: 2093-5145) is devoted to the advancement and dissemination of scientific knowledge regarding the physical, mechanical, analytical, and applied aspects for composite materials, structures, and related academic disciplines. It is an international English journal published by the Korean Society for Advanced Composite Structures (KOSACS), and covers all the scientific and technological aspects of chemistry, physics, mechanics, packing, safety, engineering, analysis, manufacturing, testing, construction, and application of composite materials and structures. The Journal is published in February, April, June, August, October and December each year.

http://kosacs.or.kr/html/sub3_02.html KSCI KCI

Volume 7 Issue 1

  1. Noh, Myung-Hyun;Ahn, Dong-Wook;Joo, Hyung-Joong 1
    https://doi.org/10.11004/kosacs.2016.7.1.001 PDF
    In this paper, the full-size structural performance test for a lightweight soundproof tunnel composed of partitioned pipe truss members is carried out to investigate the structural performance. In addition, a nonlinear structural analysis of the same finite element model as the full-size testing model is performed to compare the test result. The test and analysis results showed that the lightweight soundproof tunnel ensures the structural safety against wind loads, snow loads and load combinations. As a result, the full-size test and analysis results meet all the design load conditions, hence the proposed lightweight soundproof tunnel is ready for the field application.
  2. Ahn, Dong-Wook;Choi, Sung-Joon;Noh, Myung-Hyun 9
    https://doi.org/10.11004/kosacs.2016.7.1.009 PDF
    In this paper, the structural characteristics of a lightweight soundproof tunnel to reduce the dead load imposed on the bridge are investigated. Subsequently, the design procedure of soundproof tunnel structures is reviewed and a design practice for the lightweight soundproof tunnel is carried out according to the reviewed procedure. Next, design compatibility for the lightweight soundproof tunnel is verified through a detailed finite element analysis. The result for evaluation of design compatibility shows that the lightweight soundproof tunnel has structural safety in structural members, welding zones and foundation parts. It is also confirmed that serviceability and buckling safety is excellent.
  3. Jeong, Young Do;Ahn, Dong-Wook;Noh, Myung-Hyun 19
    https://doi.org/10.11004/kosacs.2016.7.1.019 PDF
    Most of the soundproof tunnels generate significant discharge noise through their inlets and outlets so that the length of the tunnel has been extended frequently than required to minimize the effect on such discharge noise. Thus, in this paper, we investigate reduction capability of discharge noise from the sound proof tunnel installed with lateral sound-absorbing panels on the partitioned truss members in the longitudinal direction of the tunnel. In conclusion, noise field analysis results shows that the sound proof tunnels with lateral sound-absorbing panels have an effect on discharge noise abatement and thereby tunnel's length reduction.
  4. Yoo, Jun-Sang;Yoo, Seung-Woon 25
    https://doi.org/10.11004/kosacs.2016.7.1.025 PDF
    Bond stress between cast-in-place ductile fiber reinforced cementitious composites and CFRP plank were experimentally analyzed. As failure shape, the mixture of failure between CFRP plank and epoxy, and failure between concrete and epoxy was shown. In case of RFCON from the suggested simple bond slip relationship, the maximum average bond stress was 5.39MPa, the initial slope was 104.09MPa/mm, and the total slip length was 0.19mm. PPCON showed the maximum average bond stress of 4.31MPa, the initial slope of 126.67MPa/mm, and the total slip length of 0.26mm, while RFCON+ appeared to have 8.71MPa, 137.69MPa/mm, 0.16mm. PPCON+ had 6.19MPa maximum average bond stress, 121.56MPa/mm initial slope, and 0.34mm total slip length. To comprehend the behavior of composite structure of FRP and concrete, local bond slip relation is necessary, and thus a simple relation is suggested to be easily applied on hybrid composite system.
  5. Kim, Jin-Gu;Seo, Hyun-Su;Kwon, Min-Ho;Lim, Jeong-Hee;Kim, Jin-Sup 32
    https://doi.org/10.11004/kosacs.2016.7.1.032 PDF
    It has been many efforts for reinforcement of existing structure since the number of earthquake has been increased world widely. Especially the occurrence of earthquake surrounding area of Korean peninsular is dramatically increased. Since the buildings in Korea have not been designed to carry the lateral and shear force caused by earthquake, the building will experience massive damages even under moderate earthquake. For this reason, the viscoelastic damper is proposed in this paper to enhance the earthquake resistance of a steel frame buildings. The viscoelastic dampers have been able to increase the overall damping of the structure significantly, hence improving the overall performance of dynamically sensitive structures. In this paper, Viscoelastic dampers designed are consists of FRP panel and viscoelastic material. In this paper, evaluate the performance of the viscoelastic damper through the experiment.
  6. Son, Byung Jik 39
    https://doi.org/10.11004/kosacs.2016.7.1.039 PDF
    This study analyzes gestation stall structures with high strength concrete. The ANSYS program described in this paper is effective not only because it shows good accuracy but also it shows the goodness of parameter studies by using APDL(ANSYS Parametric Design Language). We have performed the various parameter studies by thickness change. The results is presented by using contours and tables. The analysis results showed that it was effective to increase the height thickness(tz) rather than longitudinal thickness(tx).
  7. Kwon, Chul-Hwan;Park, Jong-Sup 45
    https://doi.org/10.11004/kosacs.2016.7.1.045 PDF
    There are only 10 projects of the domestic greenhouse gas(GHG) emissions trading scheme in building sector (i.e., 1.5% of 652 registered projects) because the certified methodologies to reduce GHG emissions can not be applied to building sector. This study presents remodeling techniques to reduce GHG emissions in existing buildings. First of all, preconditions and related regulations were reviewed. And then, a pool of factors for GHG reduction are selected and evaluated with respect to factors for reducing energy consumption. This study also investigates the criteria and the decision making process for remodeling techniques to reduce GHG emissions. Finally, the remodeling techniques using the decision making process were grouped based on redundancy of each effect. If reducing methodologies for GHG offset program can be developed using the analyzed remodeling techniques in this study, registered projects in building sector would be increase.