All Issue

2014 Vol.27, Issue 4 Preview Page
Numerical Simulation of Membrane of LNG Insulation System using User Defined Material Subroutine
김 정현
Kim Jeong-Hyeon
,
김 슬기
Kim Seul-Kee
,
김 명수
Kim Myung-Soo
,
이 제명 †
Lee Jae-Myung †
Department of Naval Architecture and Ocean Engineering
Department of Naval Architecture and Ocean Engineering
Department of Naval Architecture and Ocean Engineering
Department of Naval Architecture and Ocean Engineering
2014. pp. 265-271
PDF XML Citation
Abstract

304L 스테인리스강판은 멤브레인타입 LNG선 단열시스템의 1차 방벽으로 이용된다. 304L 스테인리스강은 변태유기소성(TRIP)강으로 복잡한 재료거동을 보이는데, 이는 소성변형이 발생하는 동안 상변태를 경험하기 때문이다. 본 연구에서는 304L 스테인리스 강의 비선형 기계적 거동분석을 위한 온도의존 일축인장시험을 수행하였으며 재료의 파단이나 비선형 거동을 예측하기 위한 점소성모델을 제안하였다. 수치해석의 결과와 시험 결과를 비교 분석하여 유효성을 검증하였으며 LNG 멤브레인에 대한 적용성을 검토하기 멤브레인 구조시편을 제작하여 구조해석 및 유한요소해석을 수행하였다. 재료모델은 개발 서브루틴을 이용하였으며 ABAQUS 사용자지정 재료 서브루틴을 탑재한 유한요소해석 결과와 극저온 구조인장시험을 수행한 결과를 비교하여 구조적용성을 검증하였다.

키워드
LNG membrane, 304L stainless steel, LNG insulation system, subroutine based simulation
LNG 멤브레인, 304L 스테인리스강, LNG 단열시스템, 서브루틴 기반 시뮬레이션

304L stainless steel sheets are used as a primary barrier for the insulation of membrane-type liquefied natural gas(LNG) carrier cargo containment system. 304L stainless steel is a transformation-induced-plasticity(TRIP) steel that exhibits complex material behavior, because it undergoes phase transformation during plastic deformation. Since the TRIP behavior is very important mechanical characteristics in a low-temperature environment, significant amounts of data are available in the literature. In the present study, a uniaxial tensile test for 304L stainless steel was performed to investigate nonlinear mechanical characteristics. In addition, a viscoplastic model and damage model is proposed to predict material fractures under arbitrary loads. The verification was conducted not only by a material-based comparative study involving experimental investigations, but also by a structural application to the LNG membrane of a Mark-III-type cargo containment system.

키워드
LNG membrane, 304L stainless steel, LNG insulation system, subroutine based simulation
LNG 멤브레인, 304L 스테인리스강, LNG 단열시스템, 서브루틴 기반 시뮬레이션
References
1
Abed, F.H., Voyiadjis, G.Z. 2005Plastic Deformation Modeling of AL-6XN Stainless Steel at Low and High Strain Rates and Temperatures using a Combination of BCC and FCC Mechanisms of MetalsInternational Journal of Plasticity2116181693610.1016/j.ijplas.2004.11.003
2
Choi, S.W, Roh, J.U., Kim, M.S., Lee, W.I.2011Thermal Analysis of Two Main CCS(Cargo Containment System) Insulation Box by using Experimental Thermal PropertiesJournal of the Computational Structural Engineering Institute of Korea244429438
3
Gupta, A.K., Anirudh, V.K., Singh, S.K.2013Constitutive Models to Predict Flow Stress in Austenitic Stainless Steel 316 at Elevated TemperaturesMaterials &Design43410418610.1016/j.matdes.2012.07.008
4
Kim, J.H., Park, W.S., Chun, M.S., Kim, J.J., Bae, J.H., Kim, M.H., Lee, J.M.2012Effect of Pre-straining on Low-temperature Mechanical Behavior of AISI 304LMaterials Science and Engineering A5435057610.1016/j.msea.2012.02.044
5
Kim, S.K., Lee, C.S., Kim, J.H., Kim, M.H., Lee, J.M. 2013Computational Evaluation of Resistance of Fracture Capacity for SUS304L of Liquefied Natural Gas Insulation System under Cryogenic Temperatures using ABAQUS User-defined Material SubroutineMaterials &Design50522532610.1016/j.matdes.2013.03.064
10.1016/j.matdes.2013.03.064
6
Ruester, S., Neumann, A. 2008The Prospects for Liquefied Natural Gas Development in the USEnergy Policy3631603168610.1016/j.enpol.2008.04.030
7
Kim, J.H., Lee, C.S., Kim, M.H., Lee, J.M.2013Prestrain-dependent Viscoplastic Damage Model for Austenitic Stainless Steel and Implementation to ABAQUS User-defined Material SubroutineComputational Materials Science67273281610.1016/j.commatsci.2012.08.021
8
Lee, C.S., Lee, J.M.2014Failure Analysis of Reinforced Polyurethane Foam-based LNG Insulation Structure using Damage-coupled Finite Element AnalysisComposite Structures107234245610.1016/j.compstruct.2013.07.044
9
Lee, W.S., Lin, C.H., Chen, T.H., Yang, M.C.2010High Temperature Microstructural Evolution of 304L Stainless Steel as Function of Pre-strain and Strain rateMaterials Science and Engineering A52731273137610.1016/j.msea.2010.02.007
10
Lee, W.S., Lin, C.F.2002Comparative Study of the Impact Response and Microstructure of 304L Stainless Steel with and without PrestrainMetallurgical and Materials Transactions A3328012810610.1007/s11661-002-0265-4
11
Qu, S., Haung, C.X., Gao, Y.L., Yang, G., Wu, S.D., Zang, Q.S., Zhang, Z.F.2008Tensile and Compressive Properties of AISI 304L Stainless Steel subjected to Equal Channel Angular PressingMaterials Science and Engineering A475207216610.1016/j.msea.2007.04.111
12
Samantaray, D., Mandal, S., Borah, U., Bhaduri, A.K., Sivaprasad, P.V.2009A Thermo- viscoplastic Constitutive Model to Predict Elevated- temperature Flow Behavior in a Titanium-modified Austenitic Stainless SteelMaterials Science and Engineering A52616610.1016/j.msea.2009.08.009
13
Talonen, J., Nenonen, P., Pape, G., H?nninen, H.2005Effect of Strain Rate on the Strain-induced γ→α'-Martensite Transformation and Mechanical Properties of Austenitic Stainless SteelsMetallurgical and Materials Transactions A36421432610.1007/s11661-005-0313-y
Information
  • Publisher :Computational Structural Engineering Institute of Korea
  • Publisher(Ko) :한국전산구조공학회
  • Journal Title :Journal of the Computational Structural Engineering Institute of Korea
  • Journal Title(Ko) :한국전산구조공학회 논문집
  • Volume : 27
  • No :4
  • Pages :265-271
  • Received Date : 2014-07-11
  • Revised Date : 2014-07-29
  • Accepted Date : 2014-07-30
  • DOI :https://doi.org/10.7734/COSEIK.2014.27.4.265
Journal Informaiton Journal of the Computational Structural Engineering Institute of Korea Journal of the Computational Structural Engineering Institute of Korea
Online Submission
  • NRF
  • KOFST
  • crossref crossmark
  • crossref cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close