Evaluation of the pressure-resisting capability of membrane-type corrugated sheet under hydrodynamic load

Jeong, Yeon-Jae; Kim, Hee-Tae; Kim, Seul-Kee; Kim, Jeong‐Hyeon; Kim, Yong-Tai; Heo, Won-Seok; Lee, Jae-Myung

doi:10.1016/j.tws.2020.107388

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…The maximum deformation of the weakest corrugation was measured with respect to an applied exterior pressure and the pressure at the start of buckling failure was chosen as the pressure-resisting capability of the corrugations [13]. Jeong et al (2021) reported the pressure-resisting capabilities of a 304L stainless steel corrugated membrane under hydrodynamic load [14]. Those research outcomes have helped improve the shape of the corrugated membrane.…”

Section: Introductionmentioning

confidence: 99%

A New Computational Method for Predicting Ductile Failure of 304L Stainless Steel

Kim

Choi

et al. 2022

Metals

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Austenitic stainless steel is useful for storing and transporting liquefied natural gas (LNG) at temperatures below −163 °C due to its superior low-temperature applications. This study develops a computational method for the failure prediction of 304L stainless steel sheet to utilize its usability as a design code for industrial purposes. To consider material degradation in a phenomenological way during the numerical calculation, the combined Swift–Voce equation was adopted to describe the nonlinear constitutive behavior beyond ultimate tensile strength. Due to the stress state-dependent fracture characteristics of ductile metal, a modified Mohr–Coulomb fracture criterion was adopted using stress triaxiality and Lode angle parameter. The numerical formulation of the elastoplastic-damage coupled constitutive model with fracture locus was implemented in the ABAQUS user-defined subroutine UMAT. To identify the material and damage parameters of constitutive models, a series of material tests were conducted considering various stress states. It has been verified that the numerical simulation results obtained by the proposed failure prediction methodology show good agreement with the experimental results for plastic behavior and fractured configuration.

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Section: Introductionmentioning

confidence: 99%

A New Computational Method for Predicting Ductile Failure of 304L Stainless Steel

Kim

Choi

et al. 2022

Metals

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Cryogenic Reliability Evaluation of Glass Fabric–Reinforced Composites Using Novel Slip-Prevention Method

et al. 2022

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Glass fabric–reinforced composites are the main insulating material components of the secondary barrier of cargo containment systems (CCSs), because they prevent liquefied natural gas (LNG) leakage during transport. Nevertheless, it is difficult to evaluate the material performance of glass fabric–reinforced composites at cryogenic temperatures (−163 °C) because it takes approximately 7 days to prepare the test specimens and because the slip-based test frequently fails. Although glass fabric–reinforced composites for the secondary barrier of LNG CCSs show various structural vulnerabilities, enhancing their material performance is significantly limited owing to the reasons mentioned above. This study evaluated the structural vulnerabilities and failure characteristics of glass fabric–reinforced composites by using the slip-prevention test method to determine the level difference and adhesive vacancies. The failure surface and the thermal expansion of the composites were also observed, to analyze their mechanical characteristics. By adopting our proposed test procedure, the failure rate of the experiment decreased by approximately 80%, and the sample preparation time for manufacturing was significantly shortened, to 1 day.

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Effect of Corrugated Sheet Diameter on Structural Behavior under Cryogenic Temperature and Hydrodynamic Load

Park

Kim

Jeong

et al. 2022

Metals

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The most important technical issue in the shipbuilding industry regarding liquefied natural gas (LNG) carrier cargo containment systems (CCS) is securing the structural reliability of the primary barrier, which is in direct contact with the LNG. Fracture of the primary barrier by the hydrodynamic load of the LNG CCS may lead to disasters because it is difficult to implement immediate safety measures in the marine environment, unlike on land. Hence, structural reliability of the LNG membrane is the most critical issue in LNG carrier CCSs, where thin and corrugated 304L stainless steel is often used as the primary barrier to prevent repeated thermal deformation from the temperature difference during loading (−163 °C) and unloading (20 °C) of the LNG. However, plastic deformation of the 1.2 mm-thick corrugated membrane of the LNG CCS has been reported continuously owing to its vulnerability to cryogenic hydrodynamic loads. In the present study, we conducted a parametric analysis to investigate the effects of the corrugation shape as a preliminary study of the primary barrier. Finite element analysis was conducted with a simplified plate to focus on the effects of corrugation. Furthermore, a two-step validation was conducted using the above experimental results to ensure reliability of the structural analysis. The results show that optimizing the corrugation shape could ensure better structural safety than the conventional design.

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Evaluation of the pressure-resisting capability of membrane-type corrugated sheet under hydrodynamic load

Cited by 3 publications

References 21 publications

A New Computational Method for Predicting Ductile Failure of 304L Stainless Steel

A New Computational Method for Predicting Ductile Failure of 304L Stainless Steel

Cryogenic Reliability Evaluation of Glass Fabric–Reinforced Composites Using Novel Slip-Prevention Method

Effect of Corrugated Sheet Diameter on Structural Behavior under Cryogenic Temperature and Hydrodynamic Load

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