Shock Response Analysis of a Large LNG Storage Tank Under Blast Loads

Zhang, Rulin; Jia, Juanjuan; Wang, Huaifeng; Guan, Youhai

doi:10.1007/s12205-017-1246-x

Cited by 17 publications

(10 citation statements)

References 7 publications

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“…(decreasing of 90% in Sloashing heights in these models in comparison with non-lrb models was seen). As was mentioned in the related papers before [14,15,18,20,22], the structures with the higher stiffness can respond better than the models with lower stiffness. While the use of isolator causes the flexibility of structures, these results are predictable.…”

Section: Displacementmentioning

confidence: 77%

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The Behavior of Elevated Water Tanks under Impact Loading

Tavakoli¹,

Ahmadi

2021

Period. Polytech. Civil Eng.

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Because of the crucial role of elevated water tanks and their various uses, it is necessary to evaluate their structural behavior under threats to improve the durability performance of such tanks without putting them in jeopardy. In the present research, three open cylindrical concrete water tanks were modeled under an impact load (aerial blast) with the weight of 100 kg TNT explosive charge. The tanks were modeled in 3 forms: slender, middle, and broad (Aspect ratio = 1.28,1 and 0.85). Each tank contained various levels of water (non-water, half water, and full water) to estimate their structural behavior under blast loading. Moreover, the CEL (Coupled Eulerian-Lagrangian) approach was used to simulate water structure interaction in finite element program. For a comprehensive analysis of the structural behavior of water tanks, LRB (Lead rubber bearing) isolator device was also used to observe the effect of isolator under blast loading on elevated water tanks in all models. The results of this study show that the water level leads to stiffness of the structures that cause better performance under blast loading and also the intersection of the shaft and concrete column would be the critical section of this structure under blast loading. It is also concluded that Stress and Strain decrease as the water tanks level increase and stiffen (up to 33 %). Also, it is noticeable that the existence of the isolator has deteriorated the results because of the decreases in the structure’s stiffness and the increase of the displacements.

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Section: Displacementmentioning

confidence: 77%

“…Zhang et al [22] investigated a large LNG storage tanks under blast loading. They implemented ALE algorithm for spreading blast wave and also fluid-solid coupling theory.…”

Section: Research Backgroundmentioning

confidence: 99%

The Behavior of Elevated Water Tanks under Impact Loading

Tavakoli¹,

Ahmadi

2021

Period. Polytech. Civil Eng.

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“…where ε α , ε β , and c αβ represent the normal and shear strains along the α and β axes on the middle surface of shell element S i ; χ α , χ β , and χ αβ denote curvature and torsion variation in the α and β directions on the middle surface; and v, u, and w represent the deformation displacement along the α, β, and Z axes on the middle surface. Equation (22) can satisfy the relations in equations (23)-(27).…”

Section: Dynamic Strain Analysismentioning

confidence: 99%

“…ey also proposed equations for calculating the tank's pressure-time history duration and shape. Zhang et al studied the propagation of blast shock waves via numerical methods [22], analyzing the stress and structure deformation of LNG tanks under an explosive TNT blast.…”

Section: Introductionmentioning

confidence: 99%

Behaviors of Thin‐Walled Cylindrical Shell Storage Tank under Blast Impacts

Wang

Chen

et al. 2019

Shock and Vibration

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Large steel storage tanks designed with long-span structures, employed for storing oil and fuel, have been widely used in many countries over the past twenty years. Most of these tanks are thin-walled cylindrical shells. Owing to the high risk of gas explosions and the resulting deaths, injuries, and economic losses, more thorough damage analyses of these large structures should be conducted. This study examines the structural response of a simplified steel storage tank under a blast impact, as calculated by the LS-DYNA software package. The numerical results are then compared with a scale-model experiment. On that basis, the simplified storage tank prototype, which has a 15 × 104 m3 capacity, is analyzed using numerical simulation. In this study, we address issues around the variation in structural responses—particularly of the failure mode, resultant displacement, structural energy, and dynamic strain under the impact. In addition, we also discuss the effects of varying the internal liquid level, constraint conditions, and blast intensity.

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“…Another aspect to be taken into consideration while designing LNG-related scenarios is the context of an incident. Such incidents might be elaborated for LNG storage tanks [ 17 ], pipelines, railway or road transportation [ 18 ]. As already argued, there are increasing quantities of LNG in use all over Europe, including LNG transportation.…”

Section: Introductionmentioning

confidence: 99%

Conventional Event Tree Analysis on Emergency Release of Liquefied Natural Gas

Zwęgliński

2022

IJERPH

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Liquefied natural gas (LNG) is stored in facilities located in urban areas and transported over public roads. A shift towards the broader use of LNG is economically and environmentally justified. However, it triggers an obvious need for an investigation of LNG risk through elaboration and validation of potential scenarios that the hazard might generate if it materialises. This background knowledge and past experiences were elaborated in the course of a literature review and field experiments towards designing the conventional event trees on LNG emergency release for three different units, such as a storage tank, a pipeline and in road or railway transportation. The research allowed us to answer the following question: what are the key scenario lines LNG incidents might follow? Thus, it constitutes a valuable tool for designing, planning, organising, executing and evaluating trainings and exercises on LNG emergencies.

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Shock Response Analysis of a Large LNG Storage Tank Under Blast Loads

Cited by 17 publications

References 7 publications

The Behavior of Elevated Water Tanks under Impact Loading

The Behavior of Elevated Water Tanks under Impact Loading

Behaviors of Thin‐Walled Cylindrical Shell Storage Tank under Blast Impacts

Conventional Event Tree Analysis on Emergency Release of Liquefied Natural Gas

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