• Title, Summary, Keyword: aluminum composite panel

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An Experimental Study on Combustion Characteristics of Aluminum Composite Panels for Flame Retardant and General Materials (난연소재와 일반소재 알루미늄복합패널의 연소특성 비교에 관한 실험적 연구)

  • Min, Se-Hong;Yun, Jung-Eun;Kim, Mi-Suk
    • Fire Science and Engineering
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    • v.26 no.2
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    • pp.105-111
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    • 2012
  • In this research, aluminum composite panels of the general materials and fire retardant materials as building claddings make researches about fire performance comparison analysis. Test methods of the small and medium cone calorimeter experiments and SBI (Single Burning Item) experiments was applied to the determination. As a result, in the experiments peak heat release rate cone calorimeter the general aluminum composite panel $1,293kW/m^2$ ($75kW/m^2$), flame-retardant aluminum composite panel $70kW/m^2$ ($75kW/m^2$) was measured. In the SBI experiments fire growth rate the general fire aluminum composite panel is approximately 743 W/s and the flame-retardant aluminum composite panel is approximately 97 W/s of the value were measured. Thus, a standards enactment are urgently required in this case it is used as building claddings of the aluminum composite panel by fire risk assessment.

NUMERICAL STUDY ON THE EFFECT OF EXTERNAL AIR VELOCITY AND DIRECTION ON FLAME SPREAD IN HIGH RISE BUILDING WITH THE ALUMINUM COMPOSITE EXTERNAL MATERIALS (알루미늄 복합 외장재를 사용한 고층 건축물의 외기 풍속, 풍향 변화가 화염전파에 미치는 영향에 대한 수치해석 연구)

  • Kim, H.J;Bae, S.Y.;Choi, Y.K.;Ryou, H.S.
    • 한국전산유체공학회:학술대회논문집
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    • pp.225-229
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    • 2011
  • The aluminum composite panel are widely used for the external materials of high rise building because of well insulation of heat and sound and improved Constructability. However, the polyethylene in main material of the aluminum composite panel shows weakness in thermal and fire resistances. For this reason, flame is spread more quickly when the fire break out. Therefore, the potentiality of fire spread to the exterior wall is high due to difficulty of early extinguishment and effect of external air. In this study, numerical investigation was performed by using FDS program for flame spread characteristics with various external air velocity and direction in ten-story building with the aluminum composite external materials. As a result, the flame spread velocity is 0.134m/s and it takes 224 seconds for flames to spread to the 10th floor without external air velocity. however, the flame spread velocity decreases 40% and it takes 348 seconds for flames to spread to the 10th floor when external air velocity is 2.5 m/s. and air direction is little effect compared to air velocity.

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A Study of Shear Properties of Surface Treated Aluminum/CFRP Composites (표면처리된 알루미늄/CFRP 복합재의 전단특성에 관한 연구)

  • 양준호;지창헌;윤창선;이경엽
    • Proceedings of the Korean Society For Composite Materials Conference
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    • pp.75-78
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    • 2000
  • This study investigates the effect of surface treatment on the shear strength between aluminum panel and composite plate. The aluminum panel was surface-treated by DC Plasma and the composite Plate was surface-treated by ion beam. Lap shear test and T-peel test were performed to determine the shear strength and T-peel strength. Results showed that the shear strength of surface-treated case was 2.5 times higher than that of untreated case. The T-peel strength of treated case was more than 5 times higher than that of untreated case. SEM examination showed that the strength increase of surface-treated case was due to the more spread of epoxy to the panel.

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Evaluation of the Property of adiabatic Insulation for TTX Train with Sandwich Composite bodyshell (샌드위치 복합소재가 적용된 틸팅 차량의 단열 특성 평가 연구)

  • Lee Sang-Jin;Oh Kyung-Won;Jeong Jong-Cheol;Cho Se-Hyun;Seo Soung-il
    • Proceedings of the KSR Conference
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    • pp.251-256
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    • 2005
  • This study was performed the heat transportation ratio of three types of the following sandwich panel by KS F 2278(2003) ; Type ${\sharp}1$ : Carbon/epoxy Aluminum Honeycomb and Balsa Core Sandwich Panel(Thickness : 37mm), Type ${\sharp}2$ : Carbon/epoxy Aluminum Honeycomb Core Sandwich Panel(Thickness : 57mm), and Type ${\sharp}3$ : Carbon/epoxy Aluminum Honeycomb Core Sandwich Panel(Thickness : 37mm). Also was performed the heat transportation of next three types of the following sandwich panel by KS F2277(2002) ; Type ${\sharp}4$ and ${\sharp}5$ : 27mm, and 35mm thick-Aluminum Honeycomb Sandwich Panels, and Type ${\sharp}6$ : 27mm thick-Foaming Aluminum Sandwich Panel. It is the larger area between the skin and core, the heat transportation ratio is the higher, and when it is composed of the hybrid composite structure, good insulation property was shown.

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A Study on the Large Experiments (ISO 13785-2) for Vertical Fire Behavior Analysis of Aluminum Composite Panels in General and Flame-retardant Material (일반재와 난연재 알루미늄복합패널의 수직화재 성상분석을 위한 실대형시험(ISO 13785-2)에 관한 연구)

  • Choi, Chui-Kyung;Min, Se-Hong
    • Fire Science and Engineering
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    • v.26 no.6
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    • pp.92-98
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    • 2012
  • In this sturdy, large experimental (ISO 13785-2) was performed to analyze the building materials used in fire retardant materials for aluminum composite panel and in general properties. As a results, maximum temperature in the case of the general materials was measured in 210 seconds $1,021^{\circ}C$, the retardant materials was measured in 1,200 seconds early $1,190^{\circ}C$. The retardant material of aluminum composite panel, Fire behavior if the ignition is slow and the general materials in aluminum composite panel, fire ignition and combustion at the same time was growing rapidly. The general materials and flame-retardant material of aluminum composite panel was an obvious difference to the combustion ignition but after ignition combustion mode showed a similar pattern of the rapidly vertical spread of flame. The results of this study, in order to reduce the risk of aluminum composite panels for fire and the retardant materials used for ignition the slow should be actively encouraging. Also after the ignition, there is an urgent need to put out a fire in exterior materials for extinguishing facilities.

Structural Analysis of Composite Partition Panel according to Weaving Methods (직조 방법에 따른 복합재 파티션 패널의 구조 해석)

  • Kang, Ji Heon;Kim, Kun Woo;Jang, Jin Seok;Lee, Jae Jin;Mun, Ji Hun;Kang, Da Kyung;Ahn, Min Su;Lee, Jae Wook
    • Composites Research
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    • v.33 no.3
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    • pp.140-146
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    • 2020
  • The purpose of this paper is to examine the possibility of weight reduction by changing the partition panel of vehicle from an existing aluminum material to carbon fiber reinforced plastics. Three weaving methods (plain, twill and satin) were used in the manufacture of composite materials, and they were produced and tested to derive their material properties. The analysis model of composite partition panel for torsional conditions was developed and the structural stability and system stiffness were evaluated according to Tsai-Hill failure criteria. With design variables for fiber orientation angles and stacking sequence, evolutional optimal algorithm was performed and as the results, the optimal composite partition panel was designed. In addition, the structural analysis results for strength and specific stiffness were compared with aluminum partition panels and composite partition panels to verify the possibility of weight reduction.

A Study on Failure Evaluation of Korean Low Floor Bus Structures Made of Hybrid Sandwich Composite (하이브리드 샌드위치 복합재 초저상버스 구조물의 파손 평가 연구)

  • Lee, Jae-Youl;Shin, Kwang-Bok;Lee, Sang-Jin
    • Transactions of the Korean Society of Automotive Engineers
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    • v.15 no.6
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    • pp.50-61
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    • 2007
  • The structural stiffness, strength and stability on the bodyshell and floor structures of the Korean Low Floor Bus composed of laminate, sandwich panels and metal reinforced frame were evaluated. The laminate composite panel and facesheet of sandwich panel were made of WR580/NF4000 glass fabric/epoxy laminate, while aluminum honeycomb or balsa was applied to the core materials of the sandwich panel. A finite element analysis was used to verify the basic design requirements of the bodyshell and the floor structure. The use of aluminum reinforced frame and honeycomb core was beneficial for weight saving and structural performance. The symmetry of the outer and inner facesheet thickness of sandwich panels did not affect the structural integrity. The structural strength of the panels was evaluated using Von-Mises criterion for metal structures and total laminate approach criterion for composite structures. All stress component of the bodyshell and floor structures were safely located below the failure stresses. The total laminate approach is recommended to predict the failure of hybrid sandwich composite structures at the stage of the basic design.

A Study on the Fire Characteristics of Aluminum Composite Panel by Large Scale Calorimeter (라지스케일 칼로리미터에 의한 알루미늄 복합패널 외장재의 연소특성에 관한 연구)

  • Yun, Jung-Eun;Min, Se-Hong;Kim, Mi-Suck;Choi, Sung-Bok
    • Fire Science and Engineering
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    • v.24 no.2
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    • pp.89-96
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    • 2010
  • In this research, exterior material combustion experiment was really tested to evaluate fire risks of aluminium complex panel which is used a lot for building exterior material. As a result, We saw fast fire spreading of aluminium complex panel. The reason is polyethylene in aluminum complex panel combust spreading fast fire flame vertically. In this test, the highest heat release rate of aluminum complex panel was 1,144 kW and surface temperature which is measured by thermocouple went up to more than $903.3^{\circ}C$, that temperature is quite a higher than $660^{\circ}C$ which is aluminum melting temperature. So, fire of aluminum complex panel can be evaluated to give us severe damage both by fast fire spreading vertically and by fire spreading through openings internally. These results from real experiment will be able to use to predict fire spreading of aluminum complex panel by comparing to modeling materialization of aluminum complex panel in the future.

Evaluation on Adiabatic Property for Vehicular Sandwich Composite Structure (차체 구조용 샌드위치 복합소재 단열 특성 평가)

  • Lee Sang Jin;Oh Kyung Won;Jeong Jong Cheol;Kong Chang duk;Kim Jeong Seok;Cho Se Hyun
    • Composites Research
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    • v.19 no.1
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    • pp.9-14
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    • 2006
  • Experimental investigation on heat transfer ratio was firstly performed with three types of sandwich panels such as the Carbon/Epoxy Skin-Aluminum Honeycomb and Balsa Core Sandwich Panel of 37mm thickness, the Carbon/Epoxy Aluminum Skin-Honeycomb Core Sandwich Panel of 57mm thickness (including insulator) and the Carbon/Epoxy Skin-Aluminum Honeycomb Core Sandwich Panel of 37mm thickness based on the KS F 2278:2003(Insulation test method of windows). In additional to this investigation, experimental tests were also done for evaluation of heat transportation ratio with the Aluminum Skin- Aluminium Honeycomb Sandwich Panels of 27mm and 35mm thickness, and Aluminum Skin-Foaming Aluminum Sandwich Panel of 27mm thickness by the KS F2277:2002 (Insulation measuring method of construction component-Calibration heat box method or protective heat box method). In this study, it was found that the larger net heat transfer cross sectional area between the skin and the sandwich core is given, the higher heat transportation ratio occurs. It was also found that the hybrid type insulation had better insulation characteristics compared to the non-hybrid type insulation.

Impact of composite materials on performance of reinforced concrete panels

  • Mazek, Sherif A.;Mostafa, Ashraf A.
    • Computers and Concrete
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    • v.14 no.6
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    • pp.767-783
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    • 2014
  • The use of composite materials to strengthen reinforced concrete (RC) structures against blast terror has great interests from engineering experts in structural retrofitting. The composite materials used in this study are rigid polyurethane foam (RPF) and aluminum foam (ALF). The aim of this study is to use the RPF and the ALF to strengthen the RC panels under blast load. The RC panel is considered to study the RPF and the ALF as structural retrofitting. Field blast test is conducted. The finite element analysis (FEA) is also used to model the RC panel under shock wave. The RC panel performance is studied based on detonating different TNT explosive charges. There is a good agreement between the results obtained by both the field blast test and the proposed numerical model. The composite materials improve the RC panel performance under the blast wave propagation.