Failure analysis of steel wire reinforced thermoplastics composite pipe

Li, Houbu; Yan, Mi; Qi, Dongtao; Ding, Nan; Cai, Xuehua; Zhang, Shuhui; Li, Qi; Zhang, Xuemin; Deng, Jian

doi:10.1016/j.engfailanal.2011.11.002

Cited by 20 publications

(8 citation statements)

References 3 publications

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“…MATEC Web of Conferences 203, 01023 (2018) https://doi.org/10.1051/matecconf/201820301023 ICCOEE 2018 Fig.1. Structure Of RTP (Picture extracted from [4])…”

Section: Background Of Studymentioning

confidence: 99%

“…A crack can greatly affect the stress and strain that the pipeline is able to withstand across the layers before it hits failure. Multiple modeling and test have been conducted to determine maximum stress and strain a RTP pipe can withstand before hitting failure [4,7,8]. However, not many calculation and in depth numerical modeling has been done to determine the maximum stress if a defect/crack is already present across a layer of the pipe.…”

Section: Problem Statementmentioning

confidence: 99%

“…However, high pipe grade Polyethylene (PE) has been widely used for offshore applications as is best suited of oil and gas [1]. It is widely used because of the unique elastic-plastic characteristic of it [4,7].…”

Section: Materials Selectionmentioning

confidence: 99%

“…Comparing three type of HDPE such as HDPE 63, HDPE 80 and HDPE 100 will give a better understanding towards the characteristics and properties of the different type of HDPE. Therefore, other properties such as thermal resistance and mechanical properties of thermoplastic material under heating, evaluation of thermal oxidation resistance applied on RTP by Oxidation Induction Time (OIT) test and the chemical bonding structures of HDPE that affects HDPE over time will not be included when selecting the HDPE grade/type [4]. A standard way of portraying the primary mechanical property of HDPE and tensile strength is via graph of log stress vs. log time to failure.…”

Section: High Density Polyethylene (Hdpe)mentioning

confidence: 99%

“…The stress intensity (K1) has higher value in the inner section of the pipe compared to the outer layer is due to the reason that the major principal stress/pressure exerted onto the pipe is from internal pressure [5,7] causing the internal section of the High-Density Polyethylene to show higher stress intensity at the tip of the crack. A reason why the outer section of the HDPE shows lower value is because that much of the stress has be dissipated/absorbed in the 0.5 mm layer of aramid fibers [4]. However, the study was conducted by [4] uses steel wires.…”

Section: Selection Of Induced Crack Location (Inner or Outer Hdpe)mentioning

confidence: 99%

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Numerical Analysis of Crack Failure of Reinforced Thermoplastic Pipe (RTP)

Edmund

Mustaffa

2018

MATEC Web Conf.

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Composite pipeline can drastically reduce losses caused by corrosion that occurs in carbon steel pipes in the industry. Multiple numerical testing has been conducted to determine maximum stress and strain a Reinforced Thermoplastic Pipe (RTP) can withstand before hitting failure. Not many studies were done to find the maximum stress intensity a defected RTP can resist before failing. Objectives are to validate the numerical model for Reinforced Thermoplastic Pipeline (RTP) to industry standard and to analyze the maximum stress intensity of Reinforced Thermoplastic Pipes (RTP) can withstand with various size of defects under constant pressure and incremental internal pressure with constant crack defect. Results were, under constant internal pressure of 6 MPa, the pipe will fail with a defect length of 2.05mm and at constant design pressure of 10 MPa, the pipe will fail with a defect length of 0.3mm. At constant crack depth and width, crack tip propagation (failure) is more dependent on internal pressure rather than crack length. However, when comparing the severity of crack depth to internal pressure, crack depth is the major cause of failure.

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“…MATEC Web of Conferences 203, 01023 (2018) https://doi.org/10.1051/matecconf/201820301023 ICCOEE 2018 Fig.1. Structure Of RTP (Picture extracted from [4])…”

Section: Background Of Studymentioning

confidence: 99%

Section: Problem Statementmentioning

confidence: 99%

Section: Materials Selectionmentioning

confidence: 99%

Section: High Density Polyethylene (Hdpe)mentioning

confidence: 99%

Section: Selection Of Induced Crack Location (Inner or Outer Hdpe)mentioning

confidence: 99%

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Numerical Analysis of Crack Failure of Reinforced Thermoplastic Pipe (RTP)

Edmund

Mustaffa

2018

MATEC Web Conf.

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An analytical model for the progressive failure prediction of reinforced thermoplastic pipes under axial compression

Liu

Wang

et al. 2021

Polymer Composites

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An analytical model is presented to predict the progressive failure of reinforced thermoplastic pipes (RTPs) under axial compression, in which the existing homogenization method and a nonlinear stiffness degradation model are combined to predict the continuum damage mechanical response in an iterative and cyclic way. As the homogenization method ignores the effect of the cross‐sectional curvature on the damage sequence, a stress correction factor is defined to consider this effect. Once corrected stresses satisfy Hashin‐Yeh failure criteria, the nonlinear stiffness degradation model is adopted to update the constitutive relationship established by the homogenization method. The proposed model is capable of identifying the damage location and failure mode, analyzing damage accumulation and predicting the ultimate compression. Meanwhile, ABAQUS Explicit quasi‐static analyses calling a user‐defined subroutine were conducted to capture the progressive failure mechanisms in 3D composites and verify the proposed model. The proposed model was found to give accurate prediction on the elastic stiffness, first ply failure, the damaged stiffness, the ultimate compression, and stress distributions. Furthermore, the effects of fiber's winding angles and the thickness‐radius ratios have been discussed, which illustrate that tensile failure mode would appear even when RTPs are under axial compression.

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Permeation Characteristic and Mechanism of CO2 in High Density Polyethylene

Yang

Zhang

et al. 2018

Lecture Notes in Mechanical Engineering

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Failure analysis of steel wire reinforced thermoplastics composite pipe

Cited by 20 publications

References 3 publications

Numerical Analysis of Crack Failure of Reinforced Thermoplastic Pipe (RTP)

Numerical Analysis of Crack Failure of Reinforced Thermoplastic Pipe (RTP)

An analytical model for the progressive failure prediction of reinforced thermoplastic pipes under axial compression

Permeation Characteristic and Mechanism of CO2 in High Density Polyethylene

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