Dynamic Response of Pressurized Submarine Pipelines Subjected To Transverse Impact Loads

Arabzadeh, Hamid; Zeinoddini, M.

doi:10.1016/j.proeng.2011.07.082

Cited by 27 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The boundary conditions were sand support, kaolin support, or fully clamped with no foundation support. Arabzadeh [14] focused on the dynamic response of internally pressurized submarine steel pipes subjected to lateral impact loads by using numerical simulation. His finite element model was validated against the data from the experiments conducted in China.…”

Section: Impact Testmentioning

confidence: 99%

Overtrawlability and Mechanical Damage of Pipe-in-Pipe

Zheng¹,

Palmer

Brunning³

2013

Journal of Applied Mechanics

View full text Add to dashboard Cite

A pipeline on the seabed may be struck by moving trawl gear, and that may damage the pipeline. Trenching can be a useful but expensive way to protect the pipeline. Pipe-inpipe and bundled pipeline systems are widely used in the offshore industry recently because of their high level of thermal insulation and because they lend themselves to rapid and economical installation. However, there is no clearly specified standard method to analyze the overtrawlability of pipe-in-pipe systems. If we apply the same method as for the single wall pipe, it is likely to result in a conservative design for the pipe-in-pipe. The objective of this paper is to investigate the overtrawlability of pipe-inpipe, especially in the impact phase, and to fill this gap. In this study, the authors demonstrate that a quasi-static analysis can replace a dynamic analysis to some extent because the overall response does not show a big difference. The demonstration is based on both quasi-static indentation tests and impact tests for single wall pipe and pipe-in-pipe, as well as the corresponding finite element (FE) models. The FE models not only help to compare the responses but also offer a way to analyze the overtrawlability of the pipe-inpipe. The quasi-static FE models are used for a further comparison betH'een a pipe-inpipe and a 406.4 mm (16 in.) single wall pipe to illustrate the overtrawlability of the pipe-in-pipe.

show abstract

Section: Impact Testmentioning

confidence: 99%

Overtrawlability and Mechanical Damage of Pipe-in-Pipe

Zheng¹,

Palmer

Brunning³

2013

Journal of Applied Mechanics

View full text Add to dashboard Cite

show abstract

“…Also, Taguchi method was used to determine the optimized design parameter by using static analysis of the FEA model. Arabzadeh and Zeinoddini 36 investigated the dynamic response of underwater pressurized pipes subjected to transverse impact loads. They showed that the seabed characteristics might have significant effects on the tube’s indentation, especially at relatively low internal pressures, and with increasing the embedment depth of the tube in the bed, the maximum impact load and the maximum indentation depth increase.…”

Section: Introductionmentioning

confidence: 99%

Optimization of performance in multi-cell beams with different surface slopes for use in vehicle structure using a multi-objective evolutionary algorithm based on decomposition

Chahardoli

Ahmadi²,

Tran

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

This study examined the effect of the upper surface slope and the number of cells in the side beams on the collapse properties using experimental and numerical tests. The numerical studies were conducted with LS-DYNA software, and the accuracy of numerical results was investigated by experimental tests. Using MATLAB software, the second-degree polynomial functions were obtained for the collapse properties of the specimens. Also, after the optimization by the decomposition method, the best mode was introduced for the specimens. The studies on collapse properties showed that increasing the number of cells leads to a decrease in all collapse properties, and increasing the upper surface slope leads to an increase in the collapse properties. Moreover, the optimization results by decomposition method showed that this method could suggest the most optimal model for multi-cell and sloping beams.

show abstract

“…This nonlinear 3D finite element model was also developed to predict the ductile fracture of the pipe wall triggered by a hypothetical welding defect subjected to combined internal pressure and inelastic bending . By using finite element method, the dynamic response of a buried gas pipeline with a semi‐elliptical crack under transverse impact loads and excavation machine impact was investigated. Experimental work was also performed to predict the crack propagation around the pipelines.…”

Section: Introductionmentioning

confidence: 99%

Predicting the crack opening displacements of a partially debonded pipeline in rock mass under P waves

Fang

Huang

Liu

2016

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

A crack open may lead to the failure because of rupture or leak in the pipeline. In this paper, the dynamic crack opening displacements (CODs) of a partially debonded pipeline subjected to P and SV waves are predicted, and a mathematical model is proposed. The debonded region around the pipeline is modelled as an interface crack with non‐contacting faces. The wave fields in the bonded and debonded areas are expressed by wave function expansion method, and the expanded coefficients are determined by satisfying the boundary conditions with consideration of cracks. The CODs in the debonding area are represented by Chebyshev polynomials. Some examples are illustrated to analyse the CODs under different thicknesses of pipeline and different wave frequencies. In the region of high frequency, the value of CODs is more sensitive to the crack size. The difference between the CODs in the compression direction and shear directions is also examined. Comparison with existing results is given to validate this dynamic model.

show abstract

Dynamic Response of Pressurized Submarine Pipelines Subjected To Transverse Impact Loads

Cited by 27 publications

References 5 publications

Overtrawlability and Mechanical Damage of Pipe-in-Pipe

Overtrawlability and Mechanical Damage of Pipe-in-Pipe

Optimization of performance in multi-cell beams with different surface slopes for use in vehicle structure using a multi-objective evolutionary algorithm based on decomposition

Predicting the crack opening displacements of a partially debonded pipeline in rock mass under P waves

Contact Info

Product

Resources

About