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What is the fatigue behavior of HDPE?

Stress concentration

Crack growth resistance curve

Plastic pipework

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The fatigue behavior of High-Density Polyethylene (HDPE) is influenced by various factors such as external stresses, loading frequency, and loading history, leading to fatigue failure in applications like water transport pipes . Multiaxial loading and stress concentration effects impact HDPE's fatigue behavior, with traditional criteria like von Mises stress often inadequate . Comparing different types of polyethylene, Ultra High Molecular Weight Polyethylene (UHMWPE) exhibits superior fatigue crack resistance, with load ratio affecting crack growth rates . Experimental results show that HDPE pipes have high fatigue resistance compared to PVC pipes, with failures in HDPE being localized and occurring at high pressures beyond design limits . Additionally, the fatigue behavior of hemp-fiber-reinforced HDPE composites can be predicted using a developed model that considers fiber volume fractions and moisture absorption effects .

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Journal Article•DOI Fatigue of natural fiber thermoplastic composites Ahmed Fotouh, John Wolodko, Michael G. Lipsett - Show less +2 more 01 Jun 2014-Composites Part B-engineering 52 Citations	The fatigue behavior of HDPE is studied in hemp-fiber-reinforced composites, showing normalized S-N curves and a model predicting fatigue response at different fiber fractions and stress ratios, including moisture effects.
Book Chapter•DOI Laboratory Study of Fatigue in Water Conveying HDPE and PVC Pipes Subject to Extreme Hydraulic Transient Pressures René Autrique Ruiz, Eduardo Antonio Rodal Canales - Show less +1 more 25 Oct 2017 1 Citations	HDPE pipes exhibit high fatigue resistance to cyclic high pressures, with failures localized and limited, occurring at pressures well above design limits, showcasing superior performance compared to PVC pipes.
Proceedings Article•DOI Fatigue crack propagation of ultra-high molecular weight polyethylene Suyitno, Lazuardi Pujilaksono - Show less +1 more 01 Aug 2017 1 Citations	The fatigue crack propagation behavior of ultra-high molecular weight polyethylene (UHMWPE) varies with load ratio R, showing improved resistance with higher R values, with TIVAR H.O.T exhibiting superior fatigue crack resistance.
Open access•Journal Article•DOI Multiaxial Fatigue Behavior of High-Density Polyethylene (HDPE) Including Notch Effect: Experiments and Modeling Mohammadreza Amjadi, Ali Fatemi - Show less +1 more 01 Jan 2019	The fatigue behavior of HDPE, including notch effect, was studied under multiaxial loading using experimental tests. Common criteria like von Mises stress were insufficient for correlating multiaxial fatigue data.

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