Browsing Mechanical Engineering by Title
Now showing items 115-134 of 262
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A global-local fretting analysis methodology and design study for the pressure armour layer of dynamic flexible marine risers
(Elsevier, 2019-09-19)In this paper, a global-local fretting design methodology for the pressure armour layer of flexible marine risers is outlined. This includes global dynamic riser analysis, geometrical and analytical sub-models and local ... -
Gross slip fretting wear performance of a layered thin W-DLC coating: damage mechanisms and life modelling
(Elsevier ScienceDirect, 2011)Fretting damage, in the form of wear and fatigue-cracking, is a common cause for concern in a wide range of dynamically loaded mechanical joints, and consequently, control of the rates of such damage is commonly addressed ... -
Groupware architecture for R&D managers
(2004)The business environment is changing at an accelerated pace. Contemporary business systems are becoming more knowledge intensive. This is particularly evident in areas such as product innovation where knowledge centric ... -
A groupware system for product innovation management
(2004)We are experiencing a radical shift in the way organisations are designed, structured and organised. New organisational forms such as strategic partnerships and networks are replacing simple market based transactions and ... -
A groupware system for virtual product innovation management
(Wiley Interscience, 2007)We are experiencing a radical shift in the way organisations are designed, structured and organised. New organisational forms such as virtual strategic partnerships and networks are replacing traditional bureaucratic, ... -
A happy threesome: Innovation, Creativity and Business Support
(2009)Businesses, whether for-profit and nonprofit, are facing change like never before. Numerous driving forces to this change include a rapidly expanding marketplace (globalization), and increasing competition, diversity among ... -
High temperature, low cycle fatigue characterisation of P91 weld and heat affected zone material
(American Society of Mechanical Engineers, 2014-01-08)The high temperature low cycle fatigue behavior of P91 weld metal (WM) and weld joints (cross-weld) is presented. Strain-controlled tests have been carried out at 400 °C and 500 °C. The cyclic behavior of the weld material ... -
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
(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 ... -
High-resolution measurement of the unsteady velocity field to evaluate blood damage induced by a mechanical heart valve
(Springer, 2011-09)We investigate the potential of prosthetic heart valves to generate abnormal flow and stress patterns, which can contribute to platelet activation and lysis according to blood damage accumulation mechanisms. High-resolution ... -
High-resolution measurements of leakage flow inside the hinge of a large-scale bileaflet mechanical heart valve hinge model
(Springer, 2019-06-24)Purpose It is believed that non-physiological leakage flow through hinge gaps during diastole contributes to thrombus formation in Bileaflet Mechanical Heart Valves (BMHVs). Because of the small scale and difficulty of ... -
Hygrothermal deterioration in carbon/epoxy and glass/epoxy composite laminates aged in marine-based environment (degradation mechanism, mechanical and physicochemical properties)
(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 ... -
ICT as an Opportunity for Regional Development: the Extremadura Case
(2007)The present paper describes the case of Extremadura Region as well as the lessons that can be learned from the processes of re-focussing its regional growth strategy. A brief introduction will show the way many regions or ... -
Idea management for organisational Innovation
(World Scientific, 2003-12)Modern organisations are under ever increasing competitive pressure to maintain market share, enhance product range, improve efficiency and reduce cost. The process by which organisations attain these improvements is ... -
Implementation of an ambient intelligence (AmI) system in a manufacturing SME
(IOS Press, 2008)SME are facing greater challenges due to increased labour cost and reduced cycle times. To adapt to this change more effectively and efficiently they need systems in place that adapt to change easily and seamlessly. This ... -
Implementation of an AmI system in a Manufacturing SME
(2008)SME's are facing greater challenges due to increased labour cost and reduced cycle times. To adapt to these challenges they need systems in place that will enable them to be flexible, effective and efficient. This is the ... -
An improved unified viscoplastic model for strain-rate sensitivity in high temperature fatigue
(Elsevier ScienceDirect, 2013-11-21)An improved unified cyclic viscoplastic material model for high temperature fatigue of P91 steel is presented. The primary enhancement over existing models is in relation to strain-rate independence of parameters, for ... -
In-situ SEM study of fatigue micro-crack initiation and propagation behavior in pre-corroded AA7075-T7651
(Elsevier, 2020-04-18)Fatigue micro-cracking behavior in pre-corroded AA7075-T7651 is analyzed by in-situ scanning electron microscopy (SEM) observation and SEM-based fractography. The experimental results show that (i) fatigue microcracks ... -
Incompressible moving boundary flows with the finite volume particle method
(Elsevier, 2010-03-24)Mesh-free methods offer the potential for greatly simplified modeling of flow with moving walls and phase interfaces. The finite volume particle method (FVPM) is a mesh-free technique based on interparticle fluxes which ... -
Incremental learning in a capstone project: Not all mature students are the same
(IGI Global, 2020-04)Organizations are moving away from rigid planning to a more incremental style of planning and execution in projects. There is a growing acceptance of the effectiveness of incremental change, both in industry projects and ... -
Indentation characterization of glass/epoxy and carbon/epoxy composite samples aged in artificial salt water at elevated temperature
(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 ...