Design of a glass composite anchor for LNG cargo containment systems = 액화천연가스 저장시스템의 유리섬유 복합재료 앵커 개발

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Large cryogenic containments for a liquefied natural gas (LNG) should be joined to the inner hull of a ship with the consideration of the minimum heat inflow because the large temperature difference between the LNG cargo containment and the inner hull can induce considerable heat flux through the joined area. In this work, a glass composite anchor composed of two stainless steel caps and glass fiber composite body was developed considering the strength, thermal stress and heat loss of the anchor. The stainless steel caps were adhesively bonded to the top and bottom of the glass composite body. Then the top stainless cap was welded to the stainless steel membrane and the flange of bottom stainless steel cap was joined to the inner hull of a ship with bolts. The static, dynamic adhesive strength and impact characteristics between the stainless steel caps and glass composite body of the glass composite anchor at the cryogenic temperature were investigated with respect to the adhesive thickness. Since the welding heat through the top stainless cap might degrade the adhesive joint between the top stainless cap and the glass composite body, the welding effect on the adhesively bonded joint strength was also investigated. Finally, the optimal design for the glass composite anchor was suggested.
Advisors
Lee, Dai-Gilresearcher이대길researcher
Description
한국과학기술원 : 기계공학전공,
Publisher
한국과학기술원
Issue Date
2010
Identifier
418622/325007  / 020075307
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 기계공학전공, 2010.2, [ x, 138 p. ]

Keywords

Glass composite; Adhesive joining; LNG cargo containment system; Liquified Natural Gas; Cryogenic; 극저온; 유리섬유복합재료; 접착조인트; 화물창; 액화천연가스

URI
http://hdl.handle.net/10203/43422
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=418622&flag=dissertation
Appears in Collection
ME-Theses_Ph.D.(박사논문)
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