Characterisation of the fatigue properties of cast irons used in the water industry and the effect on pipe strength and performance

Mohebbi, H, Jesson, DA, Mulheron, MJ and Smith, PA (2009) Characterisation of the fatigue properties of cast irons used in the water industry and the effect on pipe strength and performance

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Abstract

As part of an on going programme to characterise the residual properties and understand the failure mechanisms of in-service grey cast iron water pipes, the fatigue crack propagation behaviour of grey cast iron samples has been studied. Specimens were sourced from three ex-service pipes. For each pipe the microstructure and composition were characterised and the fracture toughness was determined. The fatigue behaviour was investigated in terms of the crack growth rate (da/dN) as a function of the applied stress intensity factor range. Clear differences in the fatigue behaviour of the samples from different pipes were observed. The result from these investigations, which indicate that microstructural differences play a role in mechanical behaviour, will support the development of asset management tools for use in the water industry.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Divisions :	Surrey research (other units)
Authors :	Name Email ORCID Mohebbi, H Jesson, DA d.jesson@surrey.ac.uk Mulheron, MJ m.mulheron@surrey.ac.uk Smith, PA p.smith@surrey.ac.uk
Date :	2009
DOI :	10.1088/1742-6596/181/1/012039
Contributors :	Contribution Name Email ORCID DulieuBarton, JM
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 11:55
Last Modified :	23 Jan 2020 17:24
URI:	http://epubs.surrey.ac.uk/id/eprint/833226

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