Experimental and numerical studies on the deformation and tearing of X70 pipelines subjected to localized blast loading

Song, Kejian; Long, Yuan; Ji, Chong; Gao, Fuyin; Hai-long, Chen

doi:10.1016/j.tws.2016.03.010

Cited by 49 publications

(27 citation statements)

References 22 publications

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“…Eigenvalue equation using numerical techniques: Shi [5] wrote the equation of motion for SV inclined waves using the n-layer soil system. e equation of motion of the soil system, which is affected by SV waves, can be written as (18).…”

Section: E Site Responsementioning

confidence: 99%

Explosive Performance Assessment of Buried Steel Pipeline

Kolbadi

Safi

Keshmiri³

et al. 2021

Advances in Civil Engineering

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It is so important to consider the passive defense problem in any places there have been attacks by varies kinds of military threats and terrorists. It is certain that social security is related to overcoming on these perils and protection from country. Vital facilities are one of examples that should be protected. Vital facilities include roads, bridges, transmission lines, and telecom and media network. With attention to the intense dependent to export and transmit of oil and gas and with consideration of this point that many places are full of gas and oil resource, the protection of these lines is very important. In recent years, occurrence of varies kinds of terrorist accidents in relation to important structures in all the world causes that the explosion loads have special attention. Explosion can generate much damage with vibration in vast soil media. Thus, it is important to predict the dynamic impact load and its treatment response. With attention to regardable development of numerical methods in recent decades, it is possible to investigate the explosion effects on surface and underground structures. In this research, the newest applied method modeling of the explosion phenomenon has been investigated and comprehensive information has been earned. In this investigation, problem of explosion wave’s propagation effects on buried pipes simulated by ABAQUS/CAE 6.10-1 was studied based on the finite element method. Surface explosion effects on gas buried pipe lines and their dynamic response have been investigated depending on properties and their characteristics. The variation of buried pipe depth effects and variation effects in soil properties around pipe in different cases has been considered, and the results are here. The results showed that in buried pipes under surface explosions, displacements, major stresses, and strains decrease in clay, dense, and loose sands with increase of buried depth. These results obtain that because of increase of closuring of pipes in soil when internal friction angle increases for a kind of soil, the stress on pipe rim will decrease also. It was also observed that the pipe performance in clay and loose sands is better than that in compacted sand, respectively.

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Section: E Site Responsementioning

confidence: 99%

Explosive Performance Assessment of Buried Steel Pipeline

Kolbadi

Safi

Keshmiri³

et al. 2021

Advances in Civil Engineering

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“…Applying the FEM numerical model, Yu et al [12] investigated the impact of blast-induced vibrations on tunnels in soft grounds. Song et al [13] examined X70 pipeline response under blast loading by a field study and numerical modelling. Jayasinghe et al [14] studied the blasting effect on the adjacent piles by numerical methods.…”

Section: Introductionmentioning

confidence: 99%

A Study of Blast–Induced Vibration on Oil Pipelines based on Numerical and Field Analysis

2021

IJE

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“…In addition, Feng [ 23 ] established a dynamic finite difference calculation model for simulating large deflection and conducted dynamic response analysis of hinged steel beams under flame and explosion loads. Song et al [ 24 ] investigated the dynamic response of X70 steel pipes under local explosion load and performed the numerical simulations based on experimental data to analyze four different failure modes. Thanh et al [ 21 ] studied the deformation behavior of a square steel plate under explosion load through the LS DYNA numerical method using three different kinds of modeling methods.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on the Mechanical Behavior of Composite Steel Structure under Explosion Load

Zheng

2021

Materials

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Most engineering structures are composed of basic components such as plates, shells, and beams, and their dynamic characteristics under explosion load determine the impact resistance of the structure. In this paper, a three-dimensional composite steel structure was designed using a beam, plate, and other basic elements to study its mechanical behavior under explosion load. Subsequently, experiments on the composite steel structure under explosion load were carried out to study its mechanical behavior, and the failure mode and deformation data of the composite steel structure were obtained, which provided important experimental data regarding the dynamic response and mechanical behavior of the composite steel structure under explosion load. Then, we independently developed a parallel program with the coupled calculation method to solve the numerical simulation of the dynamic response and failure process of the composite steel structure under explosion load. This program adopts the Euler method as a whole, and Lagrange particles are used for materials that need to be accurately tracked. The numerical calculation results are in good agreement with the experimental data, indicating that the developed parallel program can effectively deal with the large deformation problems of multi-medium materials and the numerical simulation of the complex engineering structure failures subjected to the strong impact load.

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Experimental and numerical studies on the deformation and tearing of X70 pipelines subjected to localized blast loading

Cited by 49 publications

References 22 publications

Explosive Performance Assessment of Buried Steel Pipeline

Explosive Performance Assessment of Buried Steel Pipeline

A Study of Blast–Induced Vibration on Oil Pipelines based on Numerical and Field Analysis

Experimental and Numerical Study on the Mechanical Behavior of Composite Steel Structure under Explosion Load

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