Experimental investigation of buckling collapse of encased liners subjected to external water pressure

Wang, J.H.; Koizumi, Atsushi

doi:10.1016/j.engstruct.2017.08.008

Cited by 27 publications

(2 citation statements)

References 10 publications

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“…4(b), the stress in the middle section of the DP shows higher values than other sections because of the interaction between the DP and slip inserts. For a certain part of the DP, it is interesting that the stress of the inner surface is higher than that of the outer surface, which coincides with the theoretical results presented in Section 2.2 as well as the works conducted by Bai et al (2016), Wang and Koizumi (2017), Alrsai et al (2018), andFernández-Valdés et al (2020). Fig.…”

Section: Stress Responses Of the Dp-slip Systemsupporting

confidence: 88%

Finite Element Analysis of Drill Pipe-Slip System

et al. 2022

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Section: Stress Responses Of the Dp-slip Systemsupporting

confidence: 88%

Finite Element Analysis of Drill Pipe-Slip System

et al. 2022

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“…Dong [18] proposed a model for calculating the critical buckling pressure of the liner in the presence of multiple partial gaps. Wang [19] found that the annular gap affects the buckling behavior of the liner. Li [20] investigated the stability of the liner under uniform external pressure after grouting the annular space gap and found that the change in the contact conditions between the liner and the original pipe affected the pressure equilibrium path.…”

Section: Introductionmentioning

confidence: 99%

Buckling Behavior of Loosely Fitted Formed-In-Place Pipe Liner in Circular Host Pipe under External Pressure

Zeng

Yan²,

Xiang³

et al. 2023

Applied Sciences

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The formed-in-place pipe (FIPP) is a trenchless technology used for pipeline rehabilitation. It is a folded PVC pipe that expands through thermoforming to fit tightly inside the host pipe. However, the deficiencies during the construction of FIPP liners such as insufficient inflation, pipe misalignment and initial deformation will lead to elliptical deformation of the FIPP liner, which affects the load-bearing performance of the liner and makes it susceptible to buckling failure. In this paper, the buckling behavior of loosely fitted FIPP liners under uniform external pressure was investigated by the external pressure resistance test and finite element model. The pre- and post-buckling equilibrium paths verified the finite element model. The results indicated that the value of the dimension ratio will significantly reduce the critical buckling pressure. With the increasing value of liner major axis ratio to host pipe, the reduction effect on the critical buckling pressure caused by the increase in the ovality will diminish. Different values of liner major axis ratio to host pipe and ovality changed the range of the detached portion, which affected the critical buckling pressure. The parametric studies modified the design model from ASTM F1216, which was established to predict the critical buckling pressure of a loosely fitted FIPP liner and reduced the average difference rate from 23.43% to 5.52%.

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Exploration of the encased nanocomposites functionally graded porous arches: Nonlinear analysis and stability behavior

2020

Applied Mathematical Modelling

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Experimental investigation of buckling collapse of encased liners subjected to external water pressure

Cited by 27 publications

References 10 publications

Finite Element Analysis of Drill Pipe-Slip System

Finite Element Analysis of Drill Pipe-Slip System

Buckling Behavior of Loosely Fitted Formed-In-Place Pipe Liner in Circular Host Pipe under External Pressure

Exploration of the encased nanocomposites functionally graded porous arches: Nonlinear analysis and stability behavior

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