- About
-
The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 21 to 30 of 1852 (0.039 seconds)| 21 |
The effect of joints on the stability of shallow single layer lattice domesFathelbab, F. A. January 1987 (has links)
Considerable improvements in the technology of space frame joints have been achieved in recent years. The conventional procedure for the analysis and study of space structure stability assumes that the joints of these structures behave as either pure pins or are fully rigid despite the fact that the joints of most space structures are semi-rigid. The actual behaviour of joints has been shown to have a significant effect on the behaviour of space structures, especially for shallow single layer lattice domes. In this thesis the development of a general space frame member tangent stiffness matrix is reported. This matrix incorporates, in addition to the effects of axial force and bowing, the effects of joint characteristics. An algorithm for following the pre and post buckling behaviour of shallow single layer lattice domes has also been developed. The new tangent stiffness matrix and the new algorithm have been implemented in a computer program for the geometrically nonlinear analysis of space frames. Results obtained using the modified computer program have been tested against the available published results. The computer program developed is then used to analyse and study the stability of a number of experimental shallow single layer lattice dome models. In these tests, various combinations of member size, joint type, and load pattern were tested. The results of all these tests along with the corresponding computer predictions are presented in this thesis. The ability of the program to model accurately the observed experimental behaviour is clearly demonstrated as is the significant influence that joint bending stiffness has on the behaviour of shallow single layer lattice domes. In particular, realistic levels of joint bending stiffness are shown to produce a considerable improvement in load carrying capacity as compared with predictions based on pin jointed behaviour.
|
| 22 |
Self avoiding walks on the square latticeWallace, J. January 1986 (has links)
No description available.
|
| 23 |
An investigation of the annealing of LEC semi-insulating GaAsStoakes, R. C. January 1987 (has links)
No description available.
|
| 24 |
Calculation of rare B decays in lattice QCDGough, Bran James January 1994 (has links)
No description available.
|
| 25 |
Aspects of phenomenology from lattice QCDHeatlie, Grant James January 1990 (has links)
No description available.
|
| 26 |
Fermion number violation and level crossing on the latticeMorrison, Steven January 1996 (has links)
No description available.
|
| 27 |
An algebraic approach to the theory of phase transitionsBall, J. K. January 1989 (has links)
No description available.
|
| 28 |
Kinematics of continuously distributed defects in crystalsGlanville, Matthew J. January 2001 (has links)
No description available.
|
| 29 |
Acoustic phonon scattering by a 2 dimensional electron gasCarter, Paul James Anthony January 1989 (has links)
No description available.
|
| 30 |
Aspects of pure quantum chromodynamics on large latticesFord, I. J. January 1987 (has links)
No description available.
|
Page generated in 0.0426 seconds