Damage-reliability approach for fatigue crack propagation in MDPE gas pipe
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Mechanics of Materials & Plant Maintenance Research Laboratory (LR3MI), Mechanical Engineering Department, Faculty of Technology, Badji Mokhtar University, PO Box 12, Sidi Amar 23052, Annaba
Online publication date: 2023-09-29
Publication date: 2023-09-29
International Journal of Applied Mechanics and Engineering 2023;28(3):42-52
Fatigue crack propagation tests are carried out on arc-shaped specimens prepared from MDPE gas pipes. Damage zone characterization is achieved using the diamond wafer sectioning technique from partially propagated and prematurely arrested cracks. Damage ahead of the crack-tip is used to assess a damage parameter and reliability based on statistical laws and subsequent use the PHIMECA Software. It is shown that a length and a width associated with a corresponding change in thickness at the fracture surface satisfactorily describe the damage zone size. The 3-parameter Weibull model gives the best reliability behavior and a critical lifetime of 82%. When considering separately both the Dugdale model and experimental damage zone measurements, it is possible to establish the evolution of the reliability index as a function of crack length. It is concluded that the reliability index approach based on damage provides a more consistent representation compared to analytical models.
This work is part of the PRFU research project validated by DGRSDT (Algeria); Code: A11N01UN230120190008, “Study of the mechanical behavior and remaining life of polyethylene pipes subjected to operating and environmental conditions”. The authors are grateful to Pr A. Amirat, Dr A. Merabtine and Dr L. Alimi for interesting discussions.
Mamoun M.M., Manpin J.K. and Miller M.J. (2009): Plastic pipe failure, risk, and threat analysis.– Final Report, Gas Technology Institute, 337p.
Nguyen K.Q., Mwiseneza K., Mohamed C., Cousin P., Robert M. and Benmokrane B. (2021): Long-term testing methods for HDPE pipe: advantages and disadvantages: A review.– Engineering Fracture Mechanics, vol.246, pp.1-13, https://doi.org/10.1016/j.engf....
PPI, Plastic Pipe Institute (2008): Handbook of Polyethylene Pipe, 2nd Edition, 620p.
Zhang Y.Z., Ben Jar P.Y, Shifeng X. and Li L. (2019): Quantification of strain-induced damage in semi-crystalline polymers: A review.– Journal of Materials Science, vol.54, pp.62-82, https://doi.org/10.1016/j.engf....
Chaoui K. (1989): A Theory for Accelerated Slow Crack Growth in Medium Density Polyethylene Fuel Gas Pipes.– PhD Thesis, Case Western Reserve University, Cleveland, Ohio, 179p. (DOE, OSTI 5875509).
Favier V., Giroud T., Hiver J.M., G’Sell C., Hellinckx S. and Goldberg A. (2002): Slow crack propagation under fatigue at controlled stress intensity.– Polymer, vol.43, pp.1375-1382, https://doi.org/10.1016/S0032-....
Frank A., Pinter G. and Lang R.W. (2009): Prediction of the remaining lifetime of polyethylene pipes after up to 30 years in use.– Polymer Testing, vol.28, pp.737-745, https://doi.org/10.1016/j.poly....
G., Xia Y., Lin C., Lin S., Meng Y. and Zhou Q. (2013): Experimental study on characterizing damage behavior of thermoplastics.– Material Design, vol.44, pp.199-207, https://doi.org/10.1016/j.matd....
Khelif R., Chateauneuf A. and Chaoui K. (2007): Reliability-based assessment of polyethylene pipe creep lifetime.– Int. J. Pressure Vessels and Piping, vol.84, pp.697-707, https://doi.org/10.1016/j.ijpv....
Majid F. and Elghorba M. (2019): Critical lifetime of HDPE pipes through damage and reliability models.– J. Mechanical Engineering Science, vol.13, No.3, pp.5228-5241, https://doi.org/10.15282/jmes.....
Alimi L., Chaoui K., Amirat A. and Azzouz S. (2018): Study of reliability index for HDPE based on pipe SDR and fracture toughness limits.– Int. J. Advanced Manufacturing Technology, vol.96, pp.123-136, https://doi.org/10.1007/s00170....
Chudnovsky A. (2014): Slow crack growth, its modeling and crack-layer approach: A review.– Int. J. Engineering Science, vol.83, pp.6-41, https://doi.org/10.1016/j.ijen....
Redhead A., Frank A. and Pinter G. (2013): Investigation of slow crack growth initiation in polyethylene pipe grades with accelerated cyclic tests.– Engineering Fracture Mechanics, vol.101, pp.2-9, https://doi.org/10.1016/j.engf....
Crissman J.M., Wang F.W., Guttman G.M., Mauray J.R., Fanconi B.M., and Vanderhart D.L. (1987): Reference Standard Polyethylene Resins and Piping Materials.– GRI, Final Report # 86/0070, National Bureau of Standards, Gaithersburg, MD, USA, 96p.
Lyonnet P. (1992): La Maintenance Mathématiques et Méthodes.– 3rd Ed., Lavoisier TEC & DOC, Paris, 363p.
PHIMECA Engineering (1992): PHIMECA-Reliability-based design and analysis.– User’s Manual, Ver.1.6, Aubière, France.
Dahlberg T. and Ekberg A. (2022): Failure and Fracture Fatigue-An Introduction.– Publisher Studentlitteratur, Lund, Sweden, 356p.
Niglia A., Cisilino R., Seltzer R. and Frontini P. (2002): Determination of impact fracture toughness of polyethylene using arc-shaped specimens.– Engineering Fracture Mechanics, vol.69, pp.1391-1399, https://doi.org/10.1016/S0013-....
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