Uniaxial Fatigue of HDPE-100 Pipe. Experimental Analysis
In this paper, an experimental analysis for determining the fatigue strength of PE-100, one of the most used High Density Polyethylene (HDPE) materials for pipes, under cyclic axial loadings is presented. HDPE is a thermoplastic material used for piping systems, such as natural gas distribution systems, sewer systems and cold water systems, which provides a good alternative to metals such as cast iron or carbon steel. One of the causes for failures of HDPE pipes is fatigue which is the result of pipes being subjected to cyclic loading, such as internal pressure, weight loads or external loadings on buried pipes, which generate stress in different directions: circumferential, longitudinal and radial. HDPE pipes are fabricated using an extrusion process, which generates anisotropic properties. By testing in the Laboratory a series of identical specimens obtained directly from PE-100 HDPE pipes in longitudinal directions, the relationships between amplitude stress and number of cycles (S-N curve) test frequency 2 Hz and stress ratio R = 0.0 are established.
Keywords:Polyethylen, Pipe, Semi-cristalline, Fatigue, Damage
J. Brewin, P. Chapman, “Recent Developments in the design and manufacture of plastic pipes”, Pipes Wagga Wagga '99 Conference, Australia, Oct. 12-14, 1999
S. H. Joseph, “Fatigue failure and service lifetimes in pvc pressure pipes”, plastics and rubber processing and applications, Vol 4, 4, pp. 325-330, 1984.
N. E. Dowling, Mechanical behavior of materials. Engineering methods for deformation, fracture and fatigue, Prentice Hall, USA, 1999
A. K. Gardner, K. B. King, J. R. Cooper, “In-service care considerations of high pressure vessels in a commercial polyethylene process”, Joint Conference of the Pressure Vessels and Piping, Materials, Nuclear Engineering, Solar Energy Divisions, Denver, USA, Vol. 48, pp. 151-164, 1981
J. A. Manson, R. W. Hertzberg, “Fatigue failure in polymers”, Critical Review of Macromolecular Science, Vol. 1, pp. 433-500, 1973
R. W. Hertzberg, J. A. Manson, Fatigue of engineering plastics, Academic Press, Inc., Orlando, 1980
J. C. Radon, “Fatigue crack-growth in polymers” International Journal of Fracture, Vol. 16, No. 6, pp. 533-552, 1980 DOI: https://doi.org/10.1007/BF02265216
J. A. Sauer, G. C. Richardson, “Fatigue of polymers”, International Journal of Fracture, Vol. 16, No. 6, pp. 499-532, 1980 DOI: https://doi.org/10.1007/BF02265215
M. T. Takemori, “Polymer fatigue”, Annual Review of Materials Science, Vol. 14, pp. 171-204, 1984 DOI: https://doi.org/10.1146/annurev.ms.14.080184.001131
J. A. Sauer, C. C. Chen, “Crazing and fatigue behavior in one- and two-phase glassy polymers”, Advances in Polymer Science, Vol. 52/53, pp. 169-224, 1983 DOI: https://doi.org/10.1007/BFb0024058
J. M. Schultz, in J. M. Schultz, ed., Treatise on materials science and technology, part B, Academic Press, Inc., Orlando, Fla., 1977, p. 599. DOI: https://doi.org/10.1016/S0161-9160(13)70096-6
E. Oral, A. S. Malhi Arnaz, O. K. Muratoglu, “Mechanisms of decrease in fatigue crack propagation resistance in irradiated and melted UHMWPE”, Biomaterials, Vol 27, No. 6, pp. 917-925, 2006 DOI: https://doi.org/10.1016/j.biomaterials.2005.06.025
S. Kannappan, Introduction to pipe stress analysis, John Wiley and Sons, USA, 1986
R. Goncalves, Introducción al análisis de esfuerzos, Segunda Edición, Editado por R. Goncalves, Caracas, Venezuela, 2002
J. T. P. Yao, F. Kozin, Y. K. Wen, J. N. Yang, G. I. Schueller, O. Ditlevsen, “Stochastic fatigue, fracture and damage analysis”, Structural Safety, Vol. 3, No. 3-4, pp. 231–267, 1986 DOI: https://doi.org/10.1016/0167-4730(86)90005-6
STPM CHIALI, “Tubes, Polyéthylène (PE) et Accessoires”, Catalogue technique.
ASTM D 638, American Society for Testing and Material Standard Test Method for Tensile Properties of Plastics, 2002
ASTME 739-91, Standard practice for: statistical analysis of linearized stress-Life (S–N) and strain-life (e–N) fatigue data, Annual Book of ASTM Standards, Vol. 03, No. 01, pp.614–260, Philadelphia, 1999
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