Browsing Mechanical Engineering by Title
Now showing items 69-88 of 262
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The effect of inclusions on the high‐temperature low‐cycle fatigue performance of cast MarBN: Experimental characterisation and computational modelling
(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 ... -
Effect of microwave and thermal co-pyrolysis of low-rank coal and pine wood on product distributions and char structure
(American Chemical Society, 2019-07-07)Direct conversion of a low-rank coal into valuable chemicals or improving its char’s coking value became very demanding goals in coal utilization strategies. In this work, the co-pyrolysis of a low-rank lignite coal and ... -
Effect of pre-corrosion on damage evolution and crack propagation in aluminum alloy 7050-T7651
(Wiley, 2018-05-16)This paper investigates the effects of pre-corrosion on the tensile behavior of aluminum alloy 7050-T7651. A combined experimental approach involving digital image correlation, scanning electron microscopy, and tensile ... -
The effect of slip regime on fretting wear-induced stress evolution
(Elsevier, 2004-02-20)A numerical approach to simulate fretting wear, based on a modified version of the Archard equation, is applied to a cylinder-on-flat fretting configuration for gross sliding and partial slip conditions. The evolution of ... -
The effect of the beta phase on the micromechanical response of dual-phase titanium alloys
(Elsevier, 2017-03-24)This paper investigates the role of beta phase on the micro-mechanical behaviour of dual-phase titanium alloys, with particular emphasis on the phenomenon of cold dwell fatigue, which occurs in such alloys under room ... -
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 ...