Browsing Mechanical Engineering (Scholarly Articles) by Author "Harrison, Noel M."
Now showing items 1-20 of 20
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Computational modelling of dynamic recrystallisation of Ni-based superalloy during linear friction welding
Okeke, Saviour I.; Harrison, Noel M.; Tong, Mingming (Springer, 2022-01-12)Linear friction welding (LFW) is an advanced joining technology used for manufacturing and repairing complex assemblies like blade integrated disks (blisks) of aeroengines. This paper presents an integrated multiphysics ... -
Cyclic plasticity of welded P91 material for simple and complex power plant connections
Li, Ming; Barrett, Richard A.; Scully, Stephen; Harrison, Noel M.; Leen, Sean B.; O’Donoghue, Padraic E. (Elsevier, 2016-02-10)This paper focuses on with the cyclic plasticity modelling of welded, ex-service P91 material. A multi material model is developed for high temperature cyclic plasticity, including the effects of the three different material ... -
Defect evaluation of the honeycomb structures formed during the drilling process
Ghabezi, Pouyan; Farahani, M.; Shahmirzaloo, Ali; Ghorbani, H.; Harrison, Noel M. (SAGE Publications, 2019-07-02)In this paper, a comprehensive experimental investigation was carried out to precisely characterize the delamination and uncut fiber in the drilling process. A digital imaging procedure was developed in order to calculate ... -
Dissolution of delta phase in Ni-based superalloy during linear friction welding: integrated multiphysics computational process modelling
Okeke, Saviour I.; Harrison, Noel M.; Tong, Mingming (Springer, 2021-06-15)Linear friction welding (LFW) is an increasingly popular solid-state joining method for challenging applications such as integrated blade disk of aero-engines. However, the influence of friction-generated heat on the ... -
The effect of inclusions on the high‐temperature low‐cycle fatigue performance of cast MarBN: Experimental characterisation and computational modelling
O'Hara, E. M.; Harrison, Noel M.; Polomski, B.K.; Barrett, R.A.; Leen, Sean B. (Wiley, 2018-06-15)The presence of inclusions is a known source of crack initiation and component failure in cast materials. In this work, the role of inclusions is investigated via a combined program of high-temperature low-cycle fatigue ... -
Evaluation and analysis of fracture modes in single composite basalt/epoxy fibres by photoelastic method and single fibre fragmentation test
Thornton, Eoghan; Ghabezi, Pouyan; Strain, Findhan; Harrison, Noel M. (Springer, 2022-04-11)In this work, the suitability of basalt fibres for uni-directional composite material applications, and adhesion between the fibres and the matrix they are embedded in have been investigated. A single fibre fragmentation ... -
Experimental and computational characterization of the effect of manufacturing-induced defects on high temperature, low-cycle fatigue for MarBN
O'Hara, Eimear M.; Phelan, B.; Osgerby, S.; Barrett, Richard A.; Raghavendra, R.; Leen, Sean B.; Harrison, Noel M. (Elsevier, 2020-05-22)Manufacturing-induced defects are a key source of crack initiation and component failure under high temperature cyclic loading. In this work, 3D X-ray micro-computed tomography and microstructural analysis of manufacturing-induced ... -
Fatigue damage characterisation of MarBN steel for high temperature flexible operating conditions
O'Hara, Eimear M.; Harrison, Noel M.; Polomski, B. K.; Barrett, Richard A.; Leen, Sean B. (SAGE Publications, 2016-09-10)This article is concerned with the high temperature low cycle fatigue behaviour of a new nano-strengthened martensiticferritic steel, MarBN. A range of strain-controlled, low cycle fatigue tests are presented on MarBN at ... -
A high-fidelity crystal-plasticity finite element methodology for low-cycle fatigue using automatic electron backscatter diffraction scan conversion: Application to hot-rolled cobalt–chromium alloy
Tu, Yuhui; Leen, Sean B.; Harrison, Noel M. (SAGE Publications, 2021-05-11)The common approach to crystal-plasticity finite element modeling for load-bearing prediction of metallic structures involves the simulation of simplified grain morphology and substructure detail. This paper details a ... -
Hygrothermal deterioration in carbon/epoxy and glass/epoxy composite laminates aged in marine-based environment (degradation mechanism, mechanical and physicochemical properties)
Ghabezi, Pouyan; Harrison, Noel M. (Springer, 2022-01-27)One of the major challenges in off-shore tidal and wave energy devices is the ageing of these structures in the hostile marine environment, which limits their operating life. In this research, mechanical properties of aged ... -
Indentation characterization of glass/epoxy and carbon/epoxy composite samples aged in artificial salt water at elevated temperature
Ghabezi, Pouyan; Harrison, Noel M. (Elsevier, 2022-04-21)Micro-level composite properties are a key determinant of the long-term performance and life span of marine-based composite structures. In this paper, the effect of the aging process in salt water at room temperature and ... -
Influence of microstructural defects and hydrostatic pressure on water absorption in composite materials for tidal energy
Grogan, D.M.; Flanagan, M.; Walls, M.; Leen, Sean B.; Harrison, Noel M.; Mamalis, D.; Goggins, Jamie (SAGE Publications, 2018-01-06)The lifespan and economic viability of tidal energy devices are constrained, in part, by the complex degradation of the tidal turbine blade materials due to prolonged immersion in a hostile sub-sea environment. Seawater ... -
Mechanical behavior and long-term life prediction of carbon/epoxy and glass/epoxy composite laminates under artificial seawater environment
Ghabezi, Pouyan; Harrison, Noel M. (Elsevier, 2019-12-06)This paper presents an investigation on the long-term performance of carbon/epoxy and glass/epoxy laminates in an artificial seawater environment with 3.5% salinity. Accelerated aging tests were conducted at 60 °C for ... -
Prediction of microstructure evolution for additive manufacturing of Ti-6Al-4V
Yang, Xinyu; Barrett, Richard A.; Tong, Mingming; Harrison, Noel M.; Leen, Sean B. (Elsevier, 2020-04-26)A key challenge for successful exploitation of additive manufacturing (AM) across a broad range of industries is the development of fundamental understanding of the relationships between process control and mechanical ... -
Predictions of ICHAZ cyclic thermo-mechanical response in GTAW process for 9Cr steels
Mac Ardghail, Padraig; Barrett, Richard A.; Harrison, Noel M.; Leen, Sean B. (ASME The American Society of Mechanical Engineers, 2019-02-25)This work is concerned with the development of a modeling framework to predict the effects of tempered–untempered martensite heterogeneity on the thermomechanical performance of welded material. A physically based ... -
A process-structure-property model for welding of 9Cr power plant components: The influence of welding process temperatures on in-service cyclic plasticity response
Mac Ardghail, Padraig; Harrison, Noel M.; Leen, Sean B. (Elsevier, 2019-04-30)A process-structure-property methodology is presented for welding of 9Cr steels under representative flexible operating conditions for a typical thermal power plant girth-welded pipe. The welding-induced evolution of ... -
A review of thermal, microstructural and constitutive modelling of 9Cr steel for power plant applications: Towards a through-process model for structural integrity of welded connections
Mac Ardghail, Padraig; Leen, Sean B.; Harrison, Noel M. (Elsevier, 2020-01-01)Life prediction for 9Cr steel welded components is an important issue facing power plant as it moves from steady-state, base-load operation to transient, flexible operation. Welding and heat-treatment of 9Cr components ... -
Short basalt fibre reinforced recycled polypropylene filaments for 3D printing
Ghabezi, Pouyan; Flanagan, Tomas; Harrison, Noel M. (Elsevier, 2022-08-12)Additive Manufacturing (3D Printing, and specifically Material Extrusion) is a rapid and convenient manufacturing method using raw material in filament form and is a potential candidate process for the use of recycled ... -
Thermomechanical modelling for the linear friction welding process of Ni-based superalloy and verification
Okeke, Saviour I.; Harrison, Noel M.; Tong, Mingming (SAGE Publications, 2020-01-22)This paper presents a fully coupled thermomechanical model for the linear friction welding process of Inconel-718 nickel-based superalloy by using the finite element method. Friction heat, plastic work, and contact formulation ... -
Towards a process-structure model for Ti-6Al-4V during additive manufacturing
Yang, Xinyu; Barrett, Richard A.; Tong, Mingming; Harrison, Noel M.; Leen, Sean B. (Elsevier, 2020-12-15)This paper presents the development of an integrated approach for microstructure prediction in laser beam powder bed fusion (PBF-LB) manufacturing of Ti-6Al-4V, primarily focused on the solidification morphology and ...