Analysis of steel strip reinforced thermoplastic pipe under internal pressure

Bai, Yong; Chen, Wei; Xiong, Haichao; Qiao, Hongdong; Yan, Hongzhi

doi:10.1080/17445302.2015.1063470

Cited by 25 publications

(10 citation statements)

References 13 publications

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“…[9]. Since 2011, RTPs have been tested in gas transportation (mixed oil and gas transportation), downhole water injection, and other fields [10][11][12][13][14][15]. Therefore, application of the RTP products in China is developing towards serialization and diversification.…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis of Limit Operating Specifications for Onshore Spoolable Reinforced Thermoplastic Pipes

Zhang

Huang

et al. 2021

Polymers

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Spoolable reinforced plastic line pipes (RTPs), exhibiting a series of advantages such as good flexibility, few joints, long single length, light weight, easy installation, etc., have been widely used in the onshore oil and gas industry such as oil and gas gathering and transportation, high pressure alcohol injection, water injection, sewage treatment, and other fields. However, due to the lack of clear standard specificationof the limit operating properties for RTPs, three typical failure modes, i.e., tensile, flexure, and torsion, frequently occur in terrain changes,construction operation, and subsequent application, which seriously affects the promotion and use of RTPs. In this paper, the stress distribution of a non-bonded polyester fiber reinforced high-density polyethylene (HDPE) pipe (DN 150, PN 2.5 MPa) was systematically studied by the finite element method (FEM),and then the limit operating values under the axial tensile, coiled bending, and torsion load were determined.The corresponding experiments were conducted to validate the reliability and accuracy of the FEM model. The FEM results showed that the critical strain for axial tensile was 3%, the minimum respooling bend radius was 1016.286 mm, and the limit torsion angle of this RTP was 58.77°, which are very close to the experimental results. These limit values will be useful to establish normative guidelines for field construction and failure prevention of onshore RTP.

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Section: Introductionmentioning

confidence: 99%

Simulation Analysis of Limit Operating Specifications for Onshore Spoolable Reinforced Thermoplastic Pipes

Zhang

Huang

et al. 2021

Polymers

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“…There is a need for further analysis of complex offshore load conditions and investigations into failure mechanisms and material nonlinearity. Variations of TCP reinforced with steel wire or strip have been studied [15,16]. Weight added by steel can be useful for increasing stability in certain subsea piping applications.…”

Section: Introductionmentioning

confidence: 99%

Failure analysis of thermoplastic composite pipe (TCP) under combined pressure, tension and thermal gradient for an offshore riser application

Hastie

Kashtalyan

Guz

2019

International Journal of Pressure Vessels and Piping

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Useful characteristics of fibre-reinforced thermoplastics, including high specific strengths and moduli and excellent corrosion resistance, make them ideal candidates for offshore riser pipe applications. When in operation, risers are subjected to combined mechanical and thermal loading. In the present paper, a 3D finite element (FE) model is used to analyse stress state in a section of thermoplastic composite pipe (TCP), consisting of a fibre-reinforced thermoplastic laminate fully bonded between inner and outer thermoplastic liners, under conditions illustrative of a deepwater riser application. The effects of varying combinations of pressure and thermal differentials on the distribution of stress-based failure coefficient are examined. Failure responses under different axial tensions at low/high pressures and temperatures are assessed for configurations with different laminate ply stacking sequences. Temperature-dependent material properties are considered in the thermomechanical analysis.

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“…3 The transported oil/gas may bring about internal pressure that acts upon the pipe, Chen and coworkers discussed the mechanical properties of steel strip PSP under internal pressure based on classic elastic theory. 4 Apart from this, ocean current-induced tension load, seabed movement-induced bending load, and inherent external hydraulic pressure are other problems that need to be considered in the offshore pipeline system. Great efforts have been devoted to analyze the mechanical behavior of composite pipes that have similar cross-sectional structure as steel strip PSP under such load cases.…”

Section: Introductionmentioning

confidence: 99%

Failure behavior analysis of steel strip–reinforced flexible pipe under combined tension and internal pressure

Chen

Xiong

Bai

2018

Journal of Thermoplastic Composite Materials

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The mechanical behaviors of steel strip–reinforced flexible pipe (steel strip PSP) under combined axial extension → internal pressure ( T→ P) load path were investigated. Typical failure characteristics of pipe samples under pure internal pressure and T→ P load path were identified in the full-scale experiments. A theoretical model for pipe under tension load was proposed to capture the relationship between axial extension of the pipe body and stress state of the steel strip. Numerical study based on finite element (FE) method was conducted to simulate the experiment process, and good agreement between FE data and experiment results were observed. Sensitivity study was conducted to study the effect of some key parameters on the pipe antiburst capacities in T→P load path; the effect of preloaded internal pressure on the pipe tensile capacity in P→T load path was also studied. Useful conclusions were drawn for the design and application of the steel strip PSP.

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Analysis of steel strip reinforced thermoplastic pipe under internal pressure

Cited by 25 publications

References 13 publications

Simulation Analysis of Limit Operating Specifications for Onshore Spoolable Reinforced Thermoplastic Pipes

Simulation Analysis of Limit Operating Specifications for Onshore Spoolable Reinforced Thermoplastic Pipes

Failure analysis of thermoplastic composite pipe (TCP) under combined pressure, tension and thermal gradient for an offshore riser application

Failure behavior analysis of steel strip–reinforced flexible pipe under combined tension and internal pressure

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