Short-term burst pressure of polyethylene pipe reinforced by winding steel wires under various temperatures

2015 ◽  
Vol 121 ◽  
pp. 163-171 ◽  
Author(s):  
Jinyang Zheng ◽  
Jun Shi ◽  
Jianfeng Shi ◽  
Sijia Zhong ◽  
Jing Rao ◽  
...  
Keyword(s):  
Burst Pressure ◽  
Short Term ◽  
Polyethylene Pipe ◽  
Steel Wires

Short-Term Mechanical Analysis of Polyethylene Pipe Reinforced by Winding Steel Wires Using Steel Wire Spiral Structural Model

2018 ◽  
Vol 140 (3) ◽  
Author(s):  
Jun Shi ◽  
Jianfeng Shi ◽  
Hanxin Chen ◽  
Yibin He ◽  
Qingjun Wang ◽  
...  
Keyword(s):  
Nonlinear Model ◽  
Chemical Engineering ◽  
Steel Wire ◽  
Composite Layer ◽  
Nonlinear Material ◽  
Experimental Result ◽  
Short Term ◽  
Polyethylene Pipe ◽  
Steel Wires ◽  
Calculation Results

Polyethylene pipe reinforced by winding steel wires (PSP) is a new type of polymer–matrix composite pipe that is widely used in petroleum, chemical engineering, and water supply, etc. PSP is composed of a high-density polyethylene (HDPE) core pipe, an outer cover layer (HDPE), and a steel wire skeleton sandwiched in the middle. The steel wire skeleton is formed by crossly winding steel wires integrated with HDPE matrix by cohesive resin. In traditional models, components of PSP are considered linear elastic and the steel wire skeleton is assumed to be an orthotropic composite layer based on classical laminated plate theory. Although satisfactory results can be achieved, traditional models neglect the material nonlinearity of the steel wires and HDPE matrix, which is an important consideration to failure analysis. In this study, a new finite element model was constructed based on the actual steel wire spiral structure of PSP. The steel wires and the HDPE matrix were modeled separately and were represented by solid elements. The steel wires were not in contact with each other, and the interaction between the steel wires and the HDPE matrix was characterized by tie constraint. Experimental result of short-term burst pressure of PSP was used to validate the nonlinear model. The calculation results of the nonlinear model agreed well with the experimental result. The effects of the nonlinear material property of components on the calculation results were investigated, and the short-term mechanical responses of PSP were analyzed through the nonlinear model.

Short-Term Mechanical Analysis of Polyethylene Pipe Reinforced by Winding Steel Wires Using Steel Wire Spiral Structural Finite Element Model

2017 ◽  
Author(s):  
Jun Shi ◽  
Jianfeng Shi ◽  
Hanxin Chen ◽  
Yibin He ◽  
Qingjun Wang ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Nonlinear Model ◽  
Steel Wire ◽  
Element Model ◽  
Experimental Result ◽  
Short Term ◽  
Polyethylene Pipe ◽  
Steel Wires ◽  
Calculation Results

Polyethylene pipe reinforced by winding steel wires (PSP) is new type of polymer-matrix composite pipe, which is widely used in petroleum, chemical engineering, and water supply, etc. PSP is composed of a thermoplastic core pipe (HDPE), an outer cover layer (HDPE), and steel wire skeleton sandwiched in the middle. The steel wire skeleton is formed by crossly winding steel wires integrated with HDPE matrix by cohesive resin. In traditional analysis models of PSP, components of PSP were considered linear elastic, and steel wire skeleton was assumed to be orthotropic composite layer based on the classical laminated plate theory. Although achieving good results in engineering applications, traditional models neglected the material nonlinearity of steel wires and HDPE matrix, which was significant to failure analysis. In the present paper, a new finite element model was constructed using commercial software ABAQUS[1], based on the actual steel wire spiral structure of PSP. Steel wires and HDPE matrix were modeled separately, which were both represented by solid elements, and the interaction between steel wires and HDPE was characterized by tie interaction. Experimental result of short-term burst pressure of PSP was used to validate the nonlinear model. Compared with the experimental result, the calculation results of the nonlinear model agreed well. Furthermore, the effect of the nonlinear material property of components on the calculation results were investigated, and the short-term mechanical responses of PSP were determined and analyzed through the nonlinear model.

Investigation on short-term burst pressure of plastic pipes reinforced by cross helically wound steel wires

2008 ◽  
Vol 9 (5) ◽  
pp. 640-647 ◽  
Author(s):  
Jin-yang Zheng ◽  
Yong-jian Gao ◽  
Xiang Li ◽  
Xiu-feng Lin ◽  
Yu-bin Lu ◽  
...  
Keyword(s):  
Burst Pressure ◽  
Short Term ◽  
Steel Wires ◽  
Plastic Pipes

Short-Term Burst Pressure of Large Diameter and High Pressure Reinforced Thermoplastic Pipe

2016 ◽  
Author(s):  
Xinyu Nie ◽  
Jianfeng Shi ◽  
Jinyang Zheng
Keyword(s):  
High Pressure ◽  
Oil And Gas ◽  
Large Diameter ◽  
Burst Pressure ◽  
Short Term ◽  
Long Distance ◽  
Reinforcement Structure ◽  
Steel Wires ◽  
Reinforced Steel ◽  
Design Pressure

Reinforced thermoplastic pipe (RTP), which basically consists of thermoplastic matrix and reinforced layers, has many advantages such as good flexibility, corrosion resistance and long service life. It has been used in oil and gas transportation pipeline industry for several decades, but generally has either low working pressure or small piping size which limits its application range. Recently, a new type of RTP with high design pressure of 6.9 MPa and large outside diameter of 490 mm was manufactured to substitute traditional metallic piping for long distance oil and gas transportation. In this paper, mechanical properties of such RTP, which is composed of four layers’ cross helically wound steel wires in the middle and two layers’ high density polyethylene (HDPE) inside and outside, are studied. Firstly, a multi-layer model was proposed to analyze the stress-strain relationship for the complex reinforcement structure considering the elasticity of both steel wires and HDPE. Further, an analytical procedure was developed to predict the short-term burst pressure (STBP) of high pressure RTP by taking the nonuniformity of reinforced steel wires into consideration. The practical position and nonuniformity of reinforced steel wires were measured by ultrasonic phased array technique. Then, short-term burst tests were conducted to validate the proposed model. Hoop strains at different internal pressures were measured and a good agreement with theoretical results was obtained, which verifies the effectiveness of the presented model. Finally, some differences of analytical and experimental techniques for STBP between normal RTP and RTP with large diameter and high design pressure were further discussed.

scholarly journals Prediction of Short-term Behavior of Buried Polyethylene Pipe

2012 ◽  
Vol 26 (6) ◽  
pp. 907-914
Author(s):  
Joonseok Park ◽  
Young-Geun Lee ◽  
Sunhee Kim ◽  
Jung-Hwan Park ◽  
Eung-Ho Kim
Keyword(s):  
Short Term ◽  
Polyethylene Pipe

Dynamic Burst Pressure Simulation of Cylindrical Shells

2008 ◽  
Author(s):  
Cunjiang Cheng ◽  
G. E. Otto Widera
Keyword(s):  
Finite Element ◽  
Empirical Formula ◽  
Dynamic Pressure ◽  
Low Carbon Steel ◽  
Dynamic Strength ◽  
Burst Pressure ◽  
Low Carbon ◽  
Short Term ◽  
Dynamic Loading Conditions ◽  
Fea Analysis

The object of this study is to determine the short-term burst pressure of metal cylinders under short-term dynamic loading conditions. The finite element method via the use of the LS-DYNA code is used to carry out the study. The influence of the geometric parameters diameter (D) and wall thickness (T) as well as loading parameters such as the dynamic pressure vs. time function is examined. Additionally, an empirical formula based on experimental data and incorporating the ultimate dynamic strength of low carbon steel is developed. Based on the agreement between the results of the finite element analyses and those of the empirical formula, it can be concluded that a properly modeled FEA analysis can be employed with sufficient accuracy to study the short-term dynamic burst pressures of metal cylinders.

Experimental Investigation on Mechanical Properties of Plastic Pipes Reinforced by Cross Helically Steel Wires

2006 ◽  
Author(s):  
Jinyang Zheng ◽  
Yubin Lu ◽  
Xiang Li
Keyword(s):  
Room Temperature ◽  
Failure Modes ◽  
Burst Pressure ◽  
Excellent Performance ◽  
Steel Wires ◽  
Composite Pipe ◽  
Steel Composite ◽  
Plastic Matrix ◽  
Short Time ◽  
Critical Buckling Pressure

A plastic pipe reinforced by cross helically wound steel wires (PSP) is a new plastic-matrix steel composite pipe with excellent performance. Its strains, critical buckling pressure, short-time burst pressure and failure modes at various temperatures were investigated. Results show that its ring stiffness is increased by 19%, critical buckling pressure by 57% and short-time burst pressure at room temperature by 129% in comparison with a comparable polyethylene pipe; it has two failure modes, ductile burst and excessive deformation, and their transition temperature is about 45°C; radial expansion rate of the PSP due to internal pressure only exerting in the radial direction is much larger than that of enclosed PSP.

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