Inaccuracy in Residual Stress Estimation and its Influence on the Residual Lifetime of Polymer Pipes

Martin Ševčík; Jan Poduška; Luboš Náhlík; Jaroslav Kučera; Pavel Hutař

doi:10.4028/www.scientific.net/KEM.592-593.165

Paper Titles

Compression of Heterogeneous Material Systems Based on Wang Tilings
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Numerical Investigation on the Size Effect of a WC/Co 3D Representative Volume Element Based on the Homogenized Elasto-Plastic Response and Fracture Energy Dissipation
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Identification of Structural Parameters of Metal Fibre Concrete Using Magnetic Approach
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Dynamic Recrystallization of the Alloy Fe-40at.%Al-Zr-B
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Inaccuracy in Residual Stress Estimation and its Influence on the Residual Lifetime of Polymer Pipes
p.165

Criterion for Crack Kinking out of the Interface of Two Orthotropic Layers Subjected to Thermal and Mechanical Loading
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The Experimental Study and Numerical Estimation of Fracture Toughness of Heterogeneous Welded Joints
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Strength of an Elastic Plane with a Square Lattice of Circular Holes under External Loading
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 592-593Inaccuracy in Residual Stress Estimation and its...

Inaccuracy in Residual Stress Estimation and its Influence on the Residual Lifetime of Polymer Pipes

Abstract:

This paper presents a methodology suitable for estimation of residual lifetime of polymer pipes. The linear and non-linear distribution of residual stresses in the pipe wall is studied using FEM analysis. The approximate relation for the stress intensity factor calculation is presented. It is shown that the presented relation gives a stress intensity factor similar to the FEM analysis for the linear or non-linear distribution of residual stress. The suggested procedure produces a slightly conservative lifetime estimation where the accuracy of the procedure increases with increasing ratio between applied internal pressure level to residual stress level. The accuracy of the residual stress estimation and corresponding stress intensity factor is discussed and a final recommendation for lifetime determination based on simplified methodology is given.

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Periodical:

Key Engineering Materials (Volumes 592-593)

Pages:

165-168

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.592-593.165

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Online since:

November 2013

Authors:

Martin Ševčík, Jan Poduška, Luboš Náhlík, Jaroslav Kučera, Pavel Hutař

Keywords:

Lifetime Estimation, Polymer Pipe, Residual Stress, Slow Crack Growth

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References

[1] A. Frank, G. Pinter, R.W. Lang: Polymer Testing Vol. 28 (2009), p.737.

Google Scholar

[2] A. Frank, P. Hutar, G. Pinter: Macromol. Symp. Vol. 311 (2012), p.112.

Google Scholar

[3] P. Hutar, M. Sevcik, L. Nahlik, G. Pinter, A. Frank, I. Mitev: Engineering Fracture Mechanics Vol. 78/17 (2011), p.3049.

Google Scholar

[4] P. Hutar, M. Sevcik, A. Frank, L. Nahlik, J. Kucera, G. Pinter: Engineering Fracture Mechanics (2013), doi: http: /dx. doi. org/10. 1016/j. engfracmech. 2013. 04. 014.

Google Scholar

[5] E.Q. Clutton, J.G. Williams: Polymer Engineering & Science Vol. 35/17 (1995), p.1381.

Google Scholar

[6] K. Chaoui, A. Chudnovsky, A. Moet: Journal of Materials Science Vol. 22/11 (1987) p.3873.

Google Scholar