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Vol.23, No.1, 2023, pp. 15–22 |
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NUMERICAL ANALYSIS OF THE EFFECT OF THE REPAIR OF CORRODED PIPELINE WITH COMPOSITE PATCHES ON THE PREDICTION OF FAILURE PRESSURE Fouad Sodki Kara Achira1, Sidi Mohamed Medjdoub2, Abdelkader Hocine1*, Mohamed Houcine Dhaou3, David Chapelle4 1) Controls Laboratory Tests, Measurements and Simulations Mechanics, Hay Salem, Hassiba Benbouali University of Chlef, Chlef, ALGERIA , *email: a.hocine@univ-chlef.dz 2) Department of Mechanical Engineering, University of Sidi Bel Abbes, Cité Ben M’hidi, Sidi Bel Abbes, ALGERIA 3) Department of Physics, College of Science, Qassim University, Buraydah, Almolaydah, SAUDI ARABIA 4) Institute FEMTO-ST, Dept. LMARC, Besançon, FRANCE
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Abstract The present paper focuses on the numerical prediction of failure pressure for a corroded pipeline before and after repair using composite materials patch. In the first step, the failure pressure of the corroded pipe subjected to internal pressure, has been predicted and validated using nonlinear behaviour. Then, effects of length, width and spacing of corrosion pits on failure pressure were discussed. In the second and last step, the corroded pipe is repaired with two kinds of composite patch, based on synthetic and natural fibres and the effect of reinforcement is observed. The limit of repair under increasing internal pressure is studied. The good results obtained make it possible to decide on the developed numerical model and on its reliability in predicting the failure pressure of corroded tubular structures and principally in optimising the thickness of the biocomposite patch repair. Keywords: corroded pipe, failure pressure, nonlinear, repair, synthetic and bio patch, stacking sequence |
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full article (683 kB)
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