Metallurgical Engineering

Metallurgical Engineering

Finite element study on stress distribution in impact of carbon nanotube composite patches used in the gas transfer tubing

Document Type : Research Paper

Author
Seyed Rahim Kiahosseini
10.22076/me.2017.51901.1107
Abstract
In the countries with natural gas, repair of gas transmission pips is a problem. In this study, the epoxy composite with single wall carbon nanotubes reinforcements as patch was used and the von Mises stress distribution was determined. For this purpose, the tubular steel with thickness and length 6 mm 1.5 m was simulated in ANSYS software at both ends of the pipe patched-epoxy composite single-walled carbon nanotubes with reinforcing particles ratios 0.01, 0.03, 0.05, 0.07, 0.1, 0.13 and 0.15 were applied. Then, according to the true values of internal pressure and external pressure, the stress of gas pipe distribution on the patch was determined. Von Mises stress results showed that, carbon nanotubes 0.01 times the maximum repair patch has 0.19 MPa von Mises stress is the maximum that occurred in the casing without patches that 1.48 Mpa is, much less. It was also found to increase the percentage of carbon nanotube to 0.15, von Mises stress to the maximum reaches 0.43 MPa. As a result, it can be stated that the nanocomposite patch greater ease in pipes, can be improved tensile properties are repaired areas. As well as increasing the percentage of nanotubes in composites, von Mises stress increases the maximum in the elderly.
Keywords
epoxy resins
von Mises stresses
ANSYS software
1.      Shamsuddoha M, Islam MM, Aravinthan T, Manalo A, Lau K-t. Effectiveness of using fibre-reinforced polymer composites for underwater steel pipeline repairs. Composite Structures 2013;100:40-54.
2.      Kennedy JL. Oil and gas pipeline fundamentals. Tulsa, Oklahoma: PennWell Publishing Company; 1993. 271 p.
3.      Frankel GS. Pitting Corrosion of Metals A Review of the Critical Factors. Journal of the Electrochemical Society. 1998;145(6):2186-98.
4.      R.Francis. Galvanic corrosion of high alloy stainless steel in sea water. . British Corrosion Journal. 1994;26(1):53-9.
5.      Evaluating different rehabilitation approaches. the magazine, Gas, North America, Oil. 2010.
6.      Saeed N, Ronagh H, Virk A. Composite repair of pipelines, considering the effect of live pressure-analytical and numerical models with respect to ISO/TS 24817 and ASME PCC-2. Composites: Part B 2014;58:605–10.
7.      J.L.F. Freire, Vieira RD, Diniz JLC, Meniconi LC. PART 7: EFFECTIVENESS OF COMPOSITE REPAIRS APPLIED TO DAMAGED PIPELINE. Experimental Techniques. 2007;31(5):59-66.
8.      Mohitpour M, Golshan H, Murray A. Pipeline Design & Construction: A Practical Approach. Third ed. New York, United States: American Society of Mechanical Engineers; 2007.
9.      Bakis CE, Lawrence C. Bank FA, V. L. Brown MA, Cosenza E, J. F. Davalos AMA, Lesko JJ, et al. Fiber-Reinforced Polymer Composites for Construction—State-of-the-Art Review. Journal of Composites for Construction. 2002;6(2):73-87.
10.    ASME. Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids. ASME B3142009.
11.    ASME. power piping. ASME B3112010.
12.    Association CS. oil and gas pipeline systems. CSA Z662-072007.
13.    Duell JM, Wilson JM, Kessler MR. Analysis of a carbon composite overwrap pipeline repair system. International Journal of Pressure Vessels and Piping. 2008;85(11):782–8.
14.    Goertzen WK, Kessler MR. Dynamic mechanical analysis of carbon/epoxy composites for structural pipeline repair. Composites Part B: Engineering. 2007;38(1):1–9.
15.    Koch GH, Brongers M, Thompson NG, Virmani YP, Payer JH. CORROSION COST AND PREVENTIVE STRATEGIES IN THE UNITED STATES. United States: National Technical Information Service, 2002.
16.    Niu L, Cheng YF. Corrosion behavior of X-70 pipe steel in near-neutral pH solution. Applied Surface Science. 2007;253(21):8626–31.
17.    Newberry AL. World's largest high pressure, large diameter GRP pipe project http://www.materialstoday.com/composite-applications/features/worlds-largest-high-pressure-large-diameter-grp/: Materials Today; 2008 [cited 2016 November 6].
18.    Gibson AG, Linden JM, Elder D, Leong KH. Non-metallic pipe systems for use in oil and gas. Plastics, Rubber and Composites 2011;40:465-80.
19.    Alexander C, Cercone L, Lockwood J. Development of a Carbon-Fiber Composite Repair System for Offshore Risers.  27th International Conference on Offshore Mechanics and Arctic Engineering: American society of, Mechanical engineering; 2008. p. 389-405.
20.    Alexander C, Ochoa OO. Extending onshore pipeline repair to offshore steel risers with carbon–fiber reinforced composites. Composite Structures. 2010;92(2):499–507.
21.    Kessler MR, Walker RH, Kadakia D, Wilson JM, Duell JM, Goertzen WK. Evaluation of Carbon/Epoxy Composites for Structural Pipeline Repair.  5th International Pipeline Conference; 1427; Canada: American Society of Mechanical Engineers; 2004. p. 1427-32.
22.    Meniconi LCM, Freire JLF, Vieira RD, Diniz JLC. Stress Analysis of Pipelines With Composite Repairs.  4th International Pipeline Conference; Calgary, Alberta, Canada20020.
23.    Keller MW, Jellison BD, Ellison T. Moisture effects on the thermal and creep performance of carbon fiber/epoxy composites for structural pipeline repair. Composites Part B: Engineering. 2013;45(1):1173–80.
24.    Shouman A, Taheri F. Compressive strain limits of composite repaired pipelines under combined loading states. Composite Structures. 2011;93(6):1538–48.
25.    Pfennig A, Linke B, Kranzmann A. Corrosion behaviour of pipe steels exposed for 2 years to CO2 -saturated saline aquifer environment similar to the CCS-site Ketzin, Germany. Energy Procedia. 2011;4:5122-9.
26.    Pfennig A, Kranzmann A. Effects of saline aquifere water on the corrosion behaviour of injection pipe steels 1.4034 and 1.7225 during exposure to CO2 environment. Energy Procedia. 2009;1(1):3023-9.
27.    Saito R, Fujita M, Dresselhaus G, Dresselhau MS. Electronic structure of chiral graphene tubules. Applied Physics Letters. 1992;60:2204-6.
28.    Kalamkarov AL, Georgiades AV, Rokkam SK, Veedu VP, Ghasemi-Nejhad MN. Analytical and numerical techniques to predict carbon nanotubes properties. International Journal of Solids and Structures. 2006;43(22-23): 6832–54.
29.    Zaeri MM, Ziaei-Rad S, Vahedi A, Karimzadeh F. Mechanical modelling of carbon nanomaterials from nanotubes to buckypaper. Carbon. 2010;48(13):3916–30.
 

  • Receive Date 23 November 2016
  • Revise Date 22 June 2017
  • Accept Date 22 June 2017