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Browsing Mechanical, Aeronautical & Biomedical Engineering by Title

Browsing Mechanical, Aeronautical & Biomedical Engineering by Title

Now showing items 82-101 of 190

An investigation into the behaviour of thick pin-loaded joints under a bearing load

Stritch, Thomas Patrick (University of Limerick, 2014)

The behaviour of a thick pin-loaded lug was investigated when subjected to a bearing load using the embedded strain gauge technique and finite element analysis. The embedded strain gauge technique was extended to the ...
An investigation into the effects of mechanical loading patterns from everyday activities on long term stability after cementless hip replacement surgery.

O'Reilly, David S. (University of Limerick, 2011)

The number of Total Hip Replacement (THR) surgeries carried out per year is increasing year on year as people live longer and partake in a more active lifestyle. Other factors such as obesity and weight problems are also ...
Investigation into three dimensional ultrasound for generating vascular reconstructions suitable for diagnostic technique development

Gaughan, Sarah (University of Limerick, 2014)

A three dimensional ultrasound (3DUS) system was developed with the aim of generating three dimensional (3D) vascular reconstructions. The system was required to be compatible with both a linear and a curvilinear transducer. ...
Investigation of first generation biofuels in diesel engines.

Madden, Orla (University of Limerick, 2011)

In an AC1W IDI Lister Petter diesel engine, ignition delay reduced exponentially with an increase in engine speed for hempseed oil (HSO), camelina seed oil (CSO) and rapeseed oil (RSO). The polyunsaturated fuels HSO ...
Investigation of microscale damage processes near adhesive-composite interfaces

O'Dwyer, Donal John (University of Limerick, 2013)

The increasing use of composite materials in the aerospace industry has necessitated significant advancements in the prediction of damage in composite structures. Adhesive joints have recently become more widespread, as ...
An investigation of the fabrication and characterisation of nanocomposite thermal interface materials

Munari, Alessio (University of Limerick, 2011)

Contemporary electronic devices such as microprocessors feature high component-level heat-fluxes and tight temperature constraints. Thermal interface materials (TIMs) are a critical element in the path for heat transfer ...
Lies, damned lies and quality management systems: a pilot case study

Brooks, Tara; Spillane, John P. (ARCOM: Association of Researchers in Construction Management, 2017)

An externally accredited ISO 9001 Quality Management System is a prerequisite for tendering for many public-sector projects, leaving Small to Medium Enterprises little choice but to implement such a system. A link between ...
Measurement of strain induced responses at femoral artery bypass graft junctions

Campbell, Tríona (University of Limerick, 2015)

Femoral artery bypass grafts have a predilection for failure at the distal anastomosis due to restenosis, within a short period of time, the cause of which has been attributed to altered haemodynamics. This study proposes ...
Mechanical characterisation of composite materials with 3D woven reinforcement architectures

Obande, Winifred O. (University of Limerick, 2016)

The use of traditional two-dimensional (2D) fibre preforms can be associated with poor out-of-plane and interlaminar mechanical performance, particularly in response to impact loads. Such preforms comprise multiple plies ...
Membraneless water filtration using CO2

Shin, Sangwoo; Shardt, Orest; Warren, Patrick B.; Stone, Howard A. (Nature Publishing Group, 2017)

Water purification technologies such as microfiltration/ultrafiltration and reverse osmosis utilize porous membranes to remove suspended particles and solutes. These membranes, however, cause many drawbacks such as a ...
Microfluidic droplet-based PCR instrumentation for high-throughput gene expression profiling and biomarker discovery

Hayes, Christopher J.; Dalton, Tara (Elsevier, 2015)

PCR is a common and often indispensable technique used in medical and biological research labs for a variety of applications. Real-time quantitative PCR (RT-qPCR) has become a definitive technique for quantitating ...
Micromechanical modelling of damage and failure in fibre reinforced composites under loading in the transverse plane

Vaughan, Ted Joseph (University of Limerick, 2011)

Fibre reinforced composites exhibit a gradual damage accumulation to failure, with a multitude of hierarchical dissipative mechanisms responsible for the deterioration of mechanical properties. In order to predict failure ...
Microscale deformation of a tempered martensite ferritic steel:Modelling and experimental study of grain and sub-grain interactions

Golden, Brian J; Li, Dong-Feng; Guo, Yina; Tiernan, Peter; Leen, Sean B; O'Dowd, Noel P. (Elsevier, 2015)

In this paper, a nite-element modelling framework is presented with explicit representation of polycrystalline microstructure for a tempered martensite ferritic steel. A miniature notched specimen was manufactured from ...
Military airworthiness management frameworks: a critical review

Kourousis, Kyriakos I.; Purton, Leon (Elsevier, 2014)

Despite all current measures taken to assure their safety, aircraft are still crashing. Since 1944 there has been a global organization, International Civil Aviation Organization (ICAO), focused on providing rules for ...
Mitigation of biological adhesion to aircraft leading edge surfaces

Kok, Mariana (University of Limerick, 2014)

Contamination caused by insects on aircraft leading edge surfaces can result in premature transition of the boundary layer, leading to an increase in skin friction drag and fuel consumption. Consequently, the use of novel ...
Modelling diffusion from drug eluting stents in compressed arterial tissue

Denny, William John (University of Limerick, 2013)

Coronary artery disease is atherosclerosis of the coronary arteries that results in blockages or narrowing of the arterial wall, is caused by the accumulation of lipid-laden atherosclerotic plaque. Drug eluting stents ...
Modelling the relationships between physical risk factors and operator performance in short cycle

Finneran, Aoife (University of Limerick, Department of Manufacturing & Operations Engineering, 2010)

Physical risk factors and their combinations are linked to the causation of Musculo Skeletal Disorders (MSDs) which has implications for on-site operator productivity. Current risk assessment methods have no element to ...
Multiaxial ratcheting with advanced kinematic and directional distortional hardening rules

Feigenbaum, Heidi P.; Dugdale, Joel; Dafalias, Yannis F.; Kourousis, Kyriakos I.; Plesek, Jiri (Elsevier, 2012)

Ratcheting is defined as the accumulation of plastic strains during cyclic plastic loading. Modeling this behavior is extremely difficult because any small error in plastic strain during a single cycle will add to become ...
Multiplicative AF kinematic hardening in plasticity

Dafalias, Yannis F.; Kourousis, Kyriakos I.; Saridis, George J. (Elsevier, 2008)

The basic innovation proposed in this work is to consider one of the two coefficients of the Armstrong and Frederick (AF) evolution equation for the back stress, function of another dimensionless second order internal ...
Multiscale characterisation of damage in laminated composite materials under bending loads

Mortell, Daniel J (University of Limerick, 2016)

In-situ micro-mechanical testing of small composite laminates has been carried out under SEM where video recordings allowed examination of the evolution of damage processes at the microscale. Samples are tested under three- ...

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