Skip to main content

Research Repository

Advanced Search

All Outputs (61)

Plastic deformation of glassy polystyrene : a unified model of yield and the role of chain length (2004)
Journal Article
Wu, J., & Buckley, C. (2004). Plastic deformation of glassy polystyrene : a unified model of yield and the role of chain length. Journal of Polymer Science Part B: Polymer Physics, 42(11), 2027-2040. https://doi.org/10.1002/polb.20089

A study was made of yield and plastic flow in glassy polystyrene. A range of 12 linear atactic polystyrenes was studied: monodisperse, bimodal blends, and a polydisperse commercial sample. Mn varied between 66,000 and 490,000 g/mol. These were given... Read More about Plastic deformation of glassy polystyrene : a unified model of yield and the role of chain length.

Cross magnetisation effects in electrical machines (2004)
Journal Article
Tavner, P. (2004). Cross magnetisation effects in electrical machines. IEE proceedings. Electric power applications, 151(3), 249-259. https://doi.org/10.1049/ip-epa%3A20040345

Examples of cross-magnetisation effects in electrical machines are collated and the physical characteristics of the phenomena are reviewed qualitatively. New experimental results to clarify the phenomena are introduced. This subject has also been cal... Read More about Cross magnetisation effects in electrical machines.

Stresses around a square tunnel using a meshless scaled boundary method (2004)
Presentation / Conference Contribution
Deeks, A., & Augarde, C. (2004, April). Stresses around a square tunnel using a meshless scaled boundary method. Presented at 12th ACME Conference, Cardiff

The scaled boundary finite element method (SBFEM) combines advantages of the conventional displacement finite element method (FE) and the boundary element method for problems in solid mechanics. In the SBFEM, a “scaling centre” is defined for a domai... Read More about Stresses around a square tunnel using a meshless scaled boundary method.

Plane-wave basis finite elements and boundary elements for three-dimensional wave scattering (2004)
Journal Article
Perrey-Debain, E., Laghrouche, O., Bettess, P., & Trevelyan, J. (2004). Plane-wave basis finite elements and boundary elements for three-dimensional wave scattering. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 362(1816), 561-577. https://doi.org/10.1098/rsta.2003.1335

Classical finite-element and boundary-element formulations for the Helmholtz equation are presented, and their limitations with respect to the number of variables needed to model a wavelength are explained. A new type of approximation for the potenti... Read More about Plane-wave basis finite elements and boundary elements for three-dimensional wave scattering.

Vernier hybrid machines for compact drive applications. (2004)
Presentation / Conference Contribution
Spooner, E., Tavner, P., Mueller, M., Brooking, P., & Baker, N. (2004, March). Vernier hybrid machines for compact drive applications. Presented at 2nd International Conferences on Power Electronics Machines & Drives., Edinburgh

Is the wear factor in total joint replacements dependent on the nominal contact stress in ultra-high molecular weight polyethylene contacts? (2004)
Journal Article
Vassiliou, K., & Unsworth, A. (2004). Is the wear factor in total joint replacements dependent on the nominal contact stress in ultra-high molecular weight polyethylene contacts?. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 218(2), 101-107. https://doi.org/10.1243/095441104322983997

The exact dependence of wear factor on contact stress, load and apparent contact area is much disputed in the literature. This study attempts to solve this dispute. Pin-on-plate studies of ultra high molecular weight polyethylene against stainless st... Read More about Is the wear factor in total joint replacements dependent on the nominal contact stress in ultra-high molecular weight polyethylene contacts?.

Developing cost models by advanced modelling technology (2004)
Journal Article
Stockton, D., & Wang, Q. (2004). Developing cost models by advanced modelling technology. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 218(2), 213-224. https://doi.org/10.1243/095440504322886532

The aim of this paper is to examine the use of artificial neural network (ANNs) in the development of cost models. Although such advanced modelling techniques have been highly successful in many engineering areas, this success has been strongly depen... Read More about Developing cost models by advanced modelling technology.

The role of fabrication techniques on the performance of widely tunable micromachined capacitors (2004)
Journal Article
Gallant, A., & Wood, D. (2004). The role of fabrication techniques on the performance of widely tunable micromachined capacitors. Sensors and Actuators A: Physical, 110(1-3), 423-431. https://doi.org/10.1016/j.sna.2003.07.006

Coventorware 2001.1® is used to identify key vertical dimensions for the low voltage operation of a two-gap widely tunable capacitor. Using identical masking stages, two varieties of tunable capacitor are presented. Nickel structures are demonstrated... Read More about The role of fabrication techniques on the performance of widely tunable micromachined capacitors.

Wave boundary elements : a theoretical overview presenting applications in scattering of short waves (2004)
Journal Article
Perrey-Debain, E., Trevelyan, J., & Bettess, P. (2004). Wave boundary elements : a theoretical overview presenting applications in scattering of short waves. Engineering Analysis with Boundary Elements, 28(2), 131-141. https://doi.org/10.1016/s0955-7997%2803%2900127-9

It is well known that the use of conventional discrete numerical methods of analysis (FEM and BEM) in the solution of Helmholtz and elastodynamic wave problems is limited by an upper bound on frequency. The current work addresses this problem by inco... Read More about Wave boundary elements : a theoretical overview presenting applications in scattering of short waves.

Lithography-free high aspect ratio submicron quartz columns by reactive ion etching (2004)
Journal Article
Zeze, D., Cox, D., Weiss, B., & Silva, S. (2004). Lithography-free high aspect ratio submicron quartz columns by reactive ion etching. Applied Physics Letters, 84(8), 1362-1364. https://doi.org/10.1063/1.1647280

We describe lithography-free fabrication of sub-micron surface features on quartz substrates by the reactive ion etching (RIE) in a CF4/Ar atmosphere. These submicron glass columns are well defined, have a high aspect ratio, with the underlying subst... Read More about Lithography-free high aspect ratio submicron quartz columns by reactive ion etching.