Collapse Pressure Enhancement of Offshore Pipeline Considering ERW Pipe Manufacturing Process

2020 ◽  
Author(s):  
Seong-Wook Han ◽  
Yeun Chul Park ◽  
Soo-Chang Kang ◽  
Ho-Kyung Kim ◽  
Jiwoon Yi
Keyword(s):  
Manufacturing Process ◽  
Limit State ◽  
Three Dimensional ◽  
Continuous Manufacturing ◽  
Collapse Pressure ◽  
Offshore Pipeline ◽  
Collapse Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Pipe Manufacturing

Abstract As the application of electric resistance welded (ERW) pipes in deep-water increases, accurate structural performance assessment satisfying the limit state, which is collapse performance, is necessary. Advantages of ERW pipes are effective productivity coming from continuous manufacturing process, but it is hard to track change in mechanical properties during manufacturing. In this study, the ERW pipe manufacturing process was simulated as a three-dimensional finite element method, and the collapse analysis was performed by reflecting the results of the ERW pipe manufacturing process. The results showed that adjustment of ERW pipe manufacturing process had a significant effect on enhancement of collapse performance.

scholarly journals Collapse Analysis of ERW Pipe Based on Roll-Forming and Sizing Simulations

2019 ◽  
Vol 7 (11) ◽  
pp. 410 ◽  
Author(s):  
Seong-Wook Han ◽  
Yeun Chul Park ◽  
Soo-Chang Kang ◽  
Sungmoon Jung ◽  
Ho-Kyung Kim
Keyword(s):  
Residual Stress ◽  
Limit State ◽  
Three Dimensional ◽  
Material Model ◽  
Nonlinear Material ◽  
Roll Forming ◽  
Two Factors ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Api 5L X70 Steel

The demand for electric resistance welded (ERW) pipe for deep-water installation has increased, which necessitates a higher degree of accuracy in evaluating the strength of pipe in order to satisfy the design limit state, otherwise referred to as the collapse performance. Since ovality and residual stress governs the collapse performance, an accurate evaluation of these factors is needed. An analytical approach using a three-dimensional finite element method was proposed to simulate the roll-forming and sizing processes in manufacturing ERW pipe. To simulate significant plastic deformation during manufacturing, a nonlinear material model that included the Bauschinger effect was incorporated. The manufacturing of ERW pipe made of API 5L X70 steel was simulated and analyzed for collapse performance. Controlling the ovality of the pipe significantly decreased the amount of pressure that would cause a collapse, whereas the effect of residual stress was minor. These two factors could be improved via the use of a proper sizing ratio.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Tire Modeling by Finite Elements

1992 ◽  
Vol 20 (1) ◽  
pp. 33-56 ◽  
Author(s):  
L. O. Faria ◽  
J. T. Oden ◽  
B. Yavari ◽  
W. W. Tworzydlo ◽  
J. M. Bass ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Rolling Contact ◽  
Test Problems ◽  
State Behavior ◽  
Normal Contact ◽  
New Developments ◽  
Applied Torque ◽  
Dimensional Finite Element ◽  
Tire Modeling ◽  
Three Dimensional Finite Element

Abstract Recent advances in the development of a general three-dimensional finite element methodology for modeling large deformation steady state behavior of tire structures is presented. The new developments outlined here include the extension of the material modeling capabilities to include viscoelastic materials and a generalization of the formulation of the rolling contact problem to include special nonlinear constraints. These constraints include normal contact load, applied torque, and constant pressure-volume. Several new test problems and examples of tire analysis are presented.

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