Fatigue strength assessment of MARK-III type LNG cargo containment system

Kim, Myung‐Hyun; Lee, Sang Min; Lee, Jae-Myung; Noh, Byung Jae; Kim, Wha-Soo

doi:10.1016/j.oceaneng.2010.05.004

Cited by 51 publications

(14 citation statements)

References 7 publications

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“…On the other hand, the No. 96 type composes a grillage structure made of plywood and filled with perlite in order to maintain tightness and insulation [2]. Independent-type tanks are perfectly self-supporting and do not come under a vessel's hull structure.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Mechanical Properties of a Weldment of 7% Nickel Alloy Steels

Lee

Kim

2016

Metals

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During the last decade, the demand for natural gas has steadily increased for the prevention of environmental pollution. For this reason, many liquefied natural gas (LNG) carriers have been manufactured. Since one of the most important issues in the design of LNG carriers is to guarantee structural safety, the use of low-temperature materials is increasing. Among commonly employed low-temperature materials, nickel steel has many benefits such as good strength and outstanding corrosion resistance. Accordingly, nickel steels are one of the most commonly used low-temperature steels for LNG storage tanks. However, the study of fracture toughness with various welding consumables of 7% nickel alloy steel is insufficient for ensuring the structural safety of LNG storage tanks. Therefore, the aim of this study was to evaluate fracture toughness of several different weldments for 7% nickel alloy steels. The weldment of 7% nickel alloy steel was fabricated by tungsten inert gas (TIG), flux cored arc welding (FCAW), and gas metal arc welding (GMAW). In order to assess the material performance of the weldments at low temperature, fracture toughness such as crack tip opening displacement (CTOD) and the absorbed impact energy of weldments were compared with those of 9% nickel steel weldments.

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Section: Introductionmentioning

confidence: 99%

An Investigation of the Mechanical Properties of a Weldment of 7% Nickel Alloy Steels

Lee

Kim

2016

Metals

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“…Because natural gas is largely carried by ship in the form of liquefied natural gas (LNG) for efficient transportation, the demand for shipping LNG has increased for the primary LNG carriers [6][7][8][9]. The LNG ship contains a special cryogenic containment system (CCS), which is the core technology of the LNG ship, to store and transport the LNG at an extremely low temperature of À163°C under a pressure of 1.1 bar [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…However, the cryogenic reliability of the PUF is a remaining concern in the marine and ship building industry because the PUF in the CCS is subjected to the cavitation impact load caused by the flow of LNG during the voyage of the LNG ship, as indicated in Fig. 2 [21][22][23][24][25]9,26].…”

Section: Introductionmentioning

confidence: 99%

Cryogenic impact resistance of chopped fiber reinforced polyurethane foam

Nam

Lee

et al. 2015

Composite Structures

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“…Because the large impact pressures induced by sloshing act on bulkheads, it may lead to the local damages or local yields of bulkheads, which could influence ultimate strength of tank. Hence, investigation of sloshing pressure (we define this measure as the mean value of those peak pressures from a series of periods) and rising time of impact pressure not only is a key point of the tank sloshing research, but also is useful for ultimate strength design of liquid carriers [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

The effect of liquid viscosity on sloshing characteristics

et al. 2015

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A series of sloshing model tests for various viscous liquids were carried out and the effects of liquid viscosity on sloshing are investigated quantitatively in this paper. The experimental results show that the liquid viscosity has an important effect on sloshing pressure, which is the mean value of those peak pressures from several consecutive periods. Energy dissipation due to viscous friction leads to reduction of sloshing pressure and the dissipation effect is more remarkable, especially when liquid viscosity becomes higher. As a result of viscous damping effect, the rising time of impact pressure is longer in higher viscosity liquid.

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Fatigue strength assessment of MARK-III type LNG cargo containment system

Cited by 51 publications

References 7 publications

An Investigation of the Mechanical Properties of a Weldment of 7% Nickel Alloy Steels

An Investigation of the Mechanical Properties of a Weldment of 7% Nickel Alloy Steels

Cryogenic impact resistance of chopped fiber reinforced polyurethane foam

The effect of liquid viscosity on sloshing characteristics

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