Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society for Advanced Composite Structures
Journal Basic Information
Journal DOI :
Korean Society for Advanced Composite Structures
Editor in Chief :
Volume & Issues
Volume 1, Issue 3 - Sep 2010
Volume 1, Issue 2 - Jun 2010
Volume 1, Issue 1 - Mar 2010
Selecting the target year
Dynamic Instability of Delaminated Composite Structures with Various Geometrical Shapes
Lee, Sang-Youl ; Chang, Suk-Yoon ;
Journal of the Korean Society for Advanced Composite Structures, volume 1, issue 1, 2010, Pages 1~8
The dynamic instability analysis of delaminated composite structures subjected to in-plane pulsating forces is carried out based on the higher order shell theory of Sanders. In the finite element (FE) formulation, the seven degrees of freedom per each node are used with transformations in order to fit the displacement continuity conditions at the delamination region. The boundaries of the instability regions are determined using the method proposed by Bolotin. The numerical results obtained for skew plates and shells are in good agreement with those reported by other investigators. The new results for delaminated skew plate and shell structures in this study mainly show the effect of the interactions between the radius-length ratio and other various parameters, for example, skew angles, delamination size, the fiber angle of layer and location of delamination in the layer direction. The effect of the magnitude of the periodic in-plane load on the instability regions is also investigated.
Analysis of Reinforced Concrete Slab Bridges by the Composite Laminates Theory
Han, Bong-Koo ; Kim, Duck-Hyun ;
Journal of the Korean Society for Advanced Composite Structures, volume 1, issue 1, 2010, Pages 9~15
In this paper, A reinforced concrete slab bridges is analyzed by the composite laminates theory. Both the geometry and the material of the cross section of the reinforced concrete slab bridge are considered symmetrical with respect to the mid-surface so that the bending extension coupling stiffness, Bij = 0, and D16 = D26 = 0. Each longitudinal and transverse steel layer is regarded as a lamina, and material constants of each lamina is calculated by the use of rule of mixture. This slab with simple support is under uniformly distributed vertical and axial loads. In this paper, the finite difference method and specially orthotropic laminates theory are used for analysis. The result of specially orthotropic laminates theory analysis is modified to obtain the solution of the beam analysis. The result of this paper can be used for reinforced concrete slab analysis by the engineers with undergraduate study in near future.
Development of the Floating Type Photovoltaic Energy Generation System
Choi, Hoon ; Joo, Hyung-Joong ; Nam, Jeong-Hun ; Yoon, Soon-Jong ;
Journal of the Korean Society for Advanced Composite Structures, volume 1, issue 1, 2010, Pages 16~26
In this paper, we present the result of investigations pertaining to the development of the floating type photovoltaic energy generation system. Pultruded FRP has superior mechanical and physical properties compared with those of conventional structural materials. Since the FRP has an excellent corrosion-resistance and high specific strength and stiffness, the FRP material may be highly appreciated for the development of the floating type photovoltaic energy generation system. In the paper, we discussed the development concepts of the floating type photovoltaic energy generation system, briefly. The mechanical properties of the FRP structural member used in the development are investigated through the tensile and compression tests. Test results are used in the finite element analysis and the design of the system. In addition, bolted connections of the members are briefly discussed and the strengths of FRP bolted connections are estimated based on the results of experiments. The experimental results are compared with the finite element analysis results and discussed briefly. The floating type photovoltaic energy generation system is designed, fabricated, and installed successfully in site.
Behavior Analysis of Buried GFRP Pipes and Flanges
Han, Taek Hee ; Kim, Hyo-San ; Jang, Young-Doo ; Park, Yoon-Ho ; Kang, Young-Jong ;
Journal of the Korean Society for Advanced Composite Structures, volume 1, issue 1, 2010, Pages 27~33
Static analyses and buckling analyses were carried out for buried GFRP pipes by using finite element method. Vehicle loads, vertical and lateral soil pressures were considered as external loads, and supplying water pressure was considered as an internal load. Nine types of the factory-manufactured GFRP pipes were analyzed. Their maximum stresses and displacements were compared with the limit displacements and ultimate stress. Additionally, stress analysis on an enhanced flange, which was designed to reduce stress concentration, was performed. A cantilever analysis was carried out to know the maximum stress on the neck of the flange, which is the critical part. And a static analysis was carried for the buried flange. The test results showed that GFRP pipes were safe and stable against the external loads. And they showed that the enhanced flange decreased about 35% of the stress concentration.
Structural Performance of an Advanced Compsites Bridge Superstructure for Rapid Installation
Ji, Hyo-Seon ;
Journal of the Korean Society for Advanced Composite Structures, volume 1, issue 1, 2010, Pages 34~45
This paper describes the design, manufacturing process, testing, application, and assessment of capacity-ratings of the first all advanced composites bridge on a public highway system. In order to verify the bridge design prior to the field application, a sub-scale bridge superstructure was built and tested in the laboratory. The field load test results were compared with those of the finite element analysis for the verification of validity. To investigate its in-service performance, field load testing and visual inspections were conducted under an actual service environment. The paper includes the presentation and discussion for advanced composites bridge capacity rating based on the stress modification coefficients obtained from the test results. The test result indicates that the advanced composites bridge has no structural problems and is structurally performing well in-service as expected. Since these composite materials are new to bridge applications, reliable data is not available for their in-service performance. The results may provide a baseline data for future field advanced composites bridge capacity rating assessments and also serve as part of a long-term performance of advanced composites bridge.