Browsing Mechanical Engineering by Title
Now showing items 74-93 of 262
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Effect of welding on microstructure and mechanical response of X100Q bainitic steel through nanoindentation, tensile, cyclic plasticity and fatigue characterisation
(Elsevier, 2020-12-30)This paper presents an experimental characterisation of fatigue at welded connections for the next-generation high-strength low-alloy offshore riser steel, X100Q. An instrumented girth weld is conducted with a parallel ... -
Effects of several types of biomass fuels on the yield, nanostructure and reactivity of soot from fast pyrolysis at high temperatures
(Elsevier, 2016-03-24)This study presents the effect of biomass origin on the yield, nanostructure and reactivity of soot. Soot was produced from wood and herbaceous biomass pyrolysis at high heating rates and at temperatures of 1250 and 1400 ... -
Efficiency and accuracy of GPU-parallelized Fourier spectral methods for solving phase-field models
(Elsevier, 2023-06-15)Phase-field models are widely employed to simulate microstructure evolution during processes such as solidification or heat treatment. The resulting partial differential equations, often strongly coupled together, may be ... -
An efficient computational framework for hydrofoil characterisation and tidal turbine design
(Elsevier, 2018-11-13)Blade element momentum (BEM) modelling offers a computationally inexpensive means of analysing turbine performance. Lift and drag coefficient data-sets specific to the operating conditions of the turbine must be input into ... -
Electrically-Heated Ceramic Composite Tooling for Out-of-Autoclave Manufacturing of Large Composite Structures
(2011)This paper describes the development of electrically-heated ceramic composite tooling, aimed primarily at the manufacture of large composites structures, for aerospace or for wind energy. The tooling is designed to operate ... -
Empowering learners with self-selecting learning tools
(International Academy of Technology, Education and Development (IATED), 2018-03-05)Students need to be encouraged while in the liminal space i.e. the learning journey in the process of mastering a threshold concept (Land et al, 2014) (Meyer & Land, 2003). However, this learning journey can either be a ... -
End-of-waste criteria: Helper or hindrance for the circular economy in Ireland?
(School of Mechanical and Materials Engineering, University College Dublin, 2022)It is imperative that societies identify and implement mitigation measures to reduce the impact of the climate crisis on the environment, the economy, and human health. A circular economy provides an opportunity to shift ... -
Enterprise knowledge management
(2000)The knowledge-based theory of a firm suggests that knowledge is the only remaining sustainable resource that can provide competitive advantage in dynamic environments. Knowledge is a key resource that must be actively ... -
Enterprise modeling for the customer focused company
(2002)The business environment is changing at an accelerated pace. Consequently, continuous systemic changes within companies are imperative. We are witnessing a shift in the way organizations are designed, structured and ... -
Environmental business management
(Irish Manufacturing Committee, 1995-09-06)In today's competitive environment, pressure is placed on companies to develop environmentally friendly processes and products. Customers are becoming increasingly interested in environmentally friendly products and ... -
Environmental challenges and opportunities for European manufacturing SMEs
(International Manufacturing Conference 27, 2010-09-01)Many owner/managers of Small and Medium Enterprises (SMEs) do not believe that their business operations have a negative impact on the environment. However, cumulatively their effect is considerable; the SME sector is ... -
Evaluation and analysis of fracture modes in single composite basalt/epoxy fibres by photoelastic method and single fibre fragmentation test
(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 ... -
An evaluation into the limitations and emerging trends of Six Sigma: an empirical study
(Emerald, 2018)Purpose: The purpose of this paper is to evaluate the limitations and emerging trends of Six Sigma through an empirical study. Six Sigma is one of the most powerful business process improvement strategies used by numerous ... -
Evaluation of the Irish Productivity Centre Environmental Business Management (E.B.M) training programme
(Human Factors Research Unit, University College Galway, 1994)Under the EUROPEAN initative of the European Social Fund, the Irish Productivity Centre (IPC) identified a need for Environmental Business Management (E.B.M.) education and training for S.M.E.s. The relevance of E.B.M. to ... -
Experimental and computational characterization of the effect of manufacturing-induced defects on high temperature, low-cycle fatigue for MarBN
(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 ... -
Experimental and numerical characterisation of the cyclic thermo-mechanical behaviour of a high temperature forming tool alloy
(American Society of Mechanical Engineers, 2010-10-05)This paper describes high temperature cyclic and creep relaxation testing and modeling of a high nickel-chromium material (XN40F) for application to the life prediction of superplastic forming (SPF) tools. An experimental ... -
Experimental characterisation and computational modelling for cyclic elastic-plastic constitutive behaviour and fatigue damage of X100Q for steel catenary risers
(Elsevier, 2018-06-21)New higher strength steels are required for deep and ultra-deepwater steel catenary risers (SCRs). In this work, the cyclic elastic-plastic-damage behaviour of X100Q, a candidate next-generation SCR material is experimentally ... -
Experimental characterization and strengthening mechanism of process-structure-property of selective laser melted 316 L
(Elsevier, 2023-03-02)Heat treatment is the most common method to relieve residual stress and to adjust tensile properties in additively manufactured material. However, the well-known strengthening factors (e.g., dislocation density, cellular ... -
Experimental investigation on damage evolution in pre-corroded aluminum alloy 7075-T7651 under fatigue loading
(Elsevier, 2020-09-01)This paper experimentally investigates the fatigue damage evolution in pre-corroded aluminum alloy (AA) 7075-T7651 via digital image correlation (DIC) and scanning electron microscopy (SEM). Three stages of fatigue damage ... -
Experimental investigation, numerical modelling and multi-objective optimisation of composite wind turbine blades
(Taylor & Francis, 2017-05-24)Static load and modal testing of two blades from a 15 kW wind turbine is presented. The two blades are made from glass fibre-reinforced polypropylene, one of which has been reinforced with additional carbon fibre plies. ...