Search
Now showing items 1-10 of 14
A mechanistic evaluation and design of tunnel support systems for deep level South African mines.
(1999)
The design of support systems, comprising rock bolt reinforcement and fabric containment
components for tunnels in deep level mining environments does not currently cater well for
adverse rock mass conditions. This often ...
Communication, mapping and navigational aspects for a free-ranging, automated guided vehicle.
(1992)
A free-ranging automated guided vehicle incorporating navigation and radio communication for use in a fully automated flexible manufacturing system has been developed. A vehicle, operating as a complete subsystem, was built ...
Computational and analytical modelling of composite structures based on exact and higher order theories.
(1995)
The objective of the present study is the computational and analytical modelling of
a stress and strain state of the composite laminated structures.
The exact three dimensional solution is derived for laminated anisotropic ...
The optimal design of laminated plates for maximum buckling load using finite element and analytical methods.
(1994)
In the first part of the study, finite element solutions are presented for the optimal
design of symmetrically laminated rectangular plates subject to a combination of
simply supported, clamped and free boundary conditions. ...
Finite element and analytical solutions for the optimal design of laminated composites.
(1996)
The present study involves the analysis and design optimisation of composite structures
using analytical and numerical methods. Five different problems are considered.
The first problem considers the design of laminated ...
High temperature fatigue crack growth behaviour of TIMETAL 21S in an oxidizing environment.
(1995)
The high temperature fatigue crack growth behaviour of the newly developed, metastable titanium-based alloy, TIMETAL 21S, was investigated in an inert and an oxidizing environment. The investigation adopted a two pronged ...
The performance of a one and a half stage axial turbine including various tip clearance effects.
(1993)
The necessary clearance at the tip of unshrouded rotors of axial turbines allows fluid
to leak from the pressure to the suction side of the blade and produces an important
component of loss that is ultimately responsible ...
The effect of tip clearance and tip gap geometry on the performance of a one and a half stage axial gas turbine.
(1996)
In a previous work of a similar nature, the performance of a low speed axial turbine with
a second stage nozzle was examined with respect to the effect of the variation of tip
clearance for various tip shapes. Present ...
The influence of sulphidizing attack on the mechanism of failure of coated superalloy under cyclic loading conditions.
(1998)
A systematic study of the effect of sulphidizing atmosphere on the High Temperature Low
Cycle Fatigue (HTLCF) properties of coated and uncoated unidirectionally solidified MARM002
nickel base superalloy was performed at ...
Modelling saturated tearing modes in tokamaks.
(1992)
In this thesis a model for saturated tearing mode islands is developed. The equations for
the mode amplitudes are essentially those of R B White et al,after a pertubation
expansion has been made. It is well known that ...