LNG운반선 방열시스템에 적용되는 적층형 플라이우드의 극저온 기계적 특성 분석
Cryogenic Mechanical Characteristics of Laminated Plywood for LNG Carrier Insulation System
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Plywood, which is created by bonding an odd number of thin veneers perpendicular to the grain orientation of an adjacent layer, was developed to supplement the weak points such as contraction and expansion of conventional wood materials. With structural merits such as strength, durability, and good absorption against impact loads, plywood has been adopted as a structural material in the insulation system of a membrane type liquefied natural gas (LNG) carrier. In the present study, as an attempt to resolve recent failure problems with plywood in an LNG insulation system, conventional PF (phenolic-formaldehyde) resin plywood and its alternative MUF (melamine-urea-formaldehyde) resin bonded plywood were investigated by performing material bending tests at ambient (20℃) and cryogenic (-163℃) temperatures to understand the resin and grain effects on the mechanical behavior of the plywood. In addition, the failure characteristics of the plywood were investigated with regard to the grain orientation and testing temperature.
Abstract
Plywood, which is created by bonding an odd number of thin veneers perpendicular to the grain orientation of an adjacent layer, was developed to supplement the weak points such as contraction and expansion of conventional wood materials. With structural merits such as strength, durability, and good absorption against impact loads, plywood has been adopted as a structural material in the insulation system of a membrane type liquefied natural gas (LNG) carrier. In the present study, as an attempt to resolve recent failure problems with plywood in an LNG insulation system, conventional PF (phenolic-formaldehyde) resin plywood and its alternative MUF (melamine-urea-formaldehyde) resin bonded plywood were investigated by performing material bending tests at ambient (20℃) and cryogenic (-163℃) temperatures to understand the resin and grain effects on the mechanical behavior of the plywood. In addition, the failure characteristics of the plywood were investigated with regard to the grain orientation and testing temperature.
참고문헌 (14)
- Arriaga-Martitegui, F., "Characteristic Values of the Mechanical Properties of Radiata Pine Plywood and the Derivation of Basic Values of the Layers for a Calculation Method", Biosystems Engineering, 99, pp.256~266 (2008)
- Aydin, I., "Effects of Moisture Content on Formaldehyde Emission and Mechanical Properties of Plywood", Building and Environment, 41(10), pp.1311~1316 (2006)
- Bekhta, P., "Bending Strength and Modulus of Elasticity of Particleboards at Various Temperatures", European Journal of Wood and Wood Products, 65, pp.163~165 (2007)
- 최성웅, "실험적 열적 물성치를 반영한 CCS 방열박스의 열전달 해석", 한국전산구조공학회논문집, 24(4), pp.429~438 (2011), 한국전산구조공학회
- Grexa, O., "Flame Retardant Treated Plywood", Polymer Degradation and Stability, 64(3), pp.529~533 (1999)
- Green, D. W., "Adjusting Modulus of Elasticity of Lumber for Changes in Temperature", Forest Products Journal, 49(10), pp.82~94 (1999)
- Hoong, Y. B., "Development of a New Pilot Scale Production of High Grade Oil Palm Plywood: Effect of Pressing Pressure", Materials and Design, 36, pp.215~219 (2012)
- 정원도, "스트레인 게이지를 이용한 C-type LNG Mock-up 탱크 내조 실 변형 거동 측정", 한국해양공학회지, 30(2), pp.117~124 (2016), 한국해양공학회
- 김정현, "사용자지정 재료 서브루틴을 활용한 LNG선박 단열시스템 멤브레인의 수치해석", 한국전산구조공학회논문집, 27(4), pp.265~272 (2014), 한국전산구조공학회[DOI]
- 윤명석, "발포 복합재료 Pultrusion 공정의 실험적 해석", Composites Research, 18(3), pp.47~52 (2005), 한국복합재료학회
- Moubarik, A., "Cornstarch and Tannin in Phenol-formaldehyde Resins for Plywood Production", Industrial Crops and Products, 30(2), pp.188~193 (2009)
- No, B. Y., "Syntheses and Properties of Low-level Melamine-modified Urea-melamine-formaldehyde Resins", Journal of Applied Polymer Science, 93(6), pp.2559~2569 (2004)
- 박두환, "6000계열 알루미늄 합금의 극저온 기계적 거동 연구", 한국해양공학회지, 29(1), pp.85~93 (2015), 한국해양공학회
- Park, S. B., "Polymeric Foams for Cryogenic Temperature Application:Temperature Range for Non-recovery and Brittle-fracture of Microstructure", Composite Structures, 163, pp.258~269 (2016)