@article{70cde8f3ba1c4fb0b52b7c6b3857620c,
title = "Analysis of failure initiation in corroded cast iron pipes under cyclic loading due to formation of through-wall cracks",
abstract = "The major factors contributing for the longitudinal failures in large-diameter cast iron water pipes are identified as corrosion and internal water pressure. Evidence of deteriorating pipeline integrity due to fluctuations of internal pressure loading was reported. This study aims to investigate the fatigue resistance of cast iron pipes and to identify the pipes in a water network that are at high risks of fatigue damage. Stress-controlled fatigue tests were conducted on coupons prepared from exhumed cast iron pipes. A correlation between tensile fatigue stress and cycles to failure was developed based on experimental results. A methodology was proposed to identify critical factors for initiating a through-wall crack in cast iron water pipe considering the impact of fatigue. A sensitivity analysis was conducted with relevant factors, and the relative impact of those factors to cause a premature failure was assessed. The operating pressures and stress ratios caused by pressure transients and long-term soil corrosion rate were identified as the key contributing factors for severe fatigue damage.",
keywords = "Cast iron pipe, Fatigue mechanism, Soil corrosion, Transient pressure, Water supply",
author = "Rui Jiang and Suranji Rathnayaka and Benjamin Shannon and Zhao, {Xiao Ling} and Jian Ji and Jayantha Kodikara",
note = "Funding Information: The authors would also like to acknowledge the financial sponsorship provided by the Advanced Condition Assessment and Pipe Failure Prediction Project funded by Sydney Water Corporation , Water Research Foundation (USA), Melbourne Water , Water Corporation , UK Water Industry Research Ltd. , South Australia Water Corporation , South East Water , Hunter Water Corporation , Yarra Valley Water , Queensland Urban Utilities and City West Water . The research partners are Monash University (lead), University of Technology Sydney and University of Newcastle. Funding Information: The authors would also like to acknowledge the financial sponsorship provided by the Advanced Condition Assessment and Pipe Failure Prediction Project funded by Sydney Water Corporation, Water Research Foundation (USA), Melbourne Water, Water Corporation, UK Water Industry Research Ltd., South Australia Water Corporation, South East Water, Hunter Water Corporation, Yarra Valley Water, Queensland Urban Utilities and City West Water. The research partners are Monash University (lead), University of Technology Sydney and University of Newcastle. Publisher Copyright: {\textcopyright} 2019",
year = "2019",
month = sep,
doi = "10.1016/j.engfailanal.2019.04.031",
language = "English",
volume = "103",
pages = "238--248",
journal = "Engineering Failure Analysis",
issn = "1350-6307",
publisher = "Elsevier B.V.",
}