Browsing Civil Engineering (Scholarly Articles) by Author "Leen, Sean B."
Now showing items 1-4 of 4
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Global and local fatigue analysis of X100 and X60 steel catenary riser girth welds
Devaney, Ronan J.; O'Donoghue, Padraic E.; Leen, Sean B. (Taylor & Francis, 2017-08-31)The use of steel catenary risers in offshore oil and gas production has increased significantly in recent years, in particular for deepwater applications. This paper presents a detailed assessment approach with respect to ... -
Modelling of fretting in the pressure armour layer of flexible marine risers
O'Halloran, S.M.; Connaire, A.D.; Harte, Annette M.; Leen, Sean B. (Elsevier, 2016-03-04)This paper presents a computational methodology for frictional contact mechanics of the pressure armour layer in flexible risers. This will allow, for the first time, quantification of key fretting variables, such as contact ... -
A precipitate evolution-based continuum damage mechanics model of creep behaviour in welded 9Cr steel at high temperature
Ó Murchú, Cathal; Leen, Sean B.; O’Donoghue, Padraic E.; Barrett, Richard A. (SAGE Publications, 2018-04-04)A multiaxial, physically based, continuum damage mechanics methodology for creep of welded 9Cr steels is presented, incorporating a multiple precipitate-type state variable, which simulates the effects of strain- and ... -
Statistical grain size effects in fretting crack initiation
Ashton, P.J.; Harte, Annette M.; Leen, Sean B. (Elsevier, 2016-09-20)A crystal plasticity computational framework is developed and validated to investigate the microstructure sensitivity of crack initiation in fretting. Randomly distributed microstructure geometries are incorporated into a ...