- 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 161 to 170 of 891 (0.014 seconds)| 161 |
The application of distributed dislocations to the modelling of plane plastic flowBlomerus, P. M. January 1998 (has links)
No description available.
|
| 162 |
The influence of residual stresses on fatigueWilks, Martin David Bernard January 1994 (has links)
No description available.
|
| 163 |
Small specimen impact testing and modelling of carbon fibre T300/914Hallett, Stephen Richard January 1997 (has links)
No description available.
|
| 164 |
The solution of axisymmetric crack problems in inhomogenous mediaKorsunsky, Alexander Michael January 1994 (has links)
No description available.
|
| 165 |
Thermal shock resistance of sintered alumina/silicon carbide nanocompositesMaensiri, Santi January 2001 (has links)
No description available.
|
| 166 |
The mechanical and thermal behaviour of polymers under high strain rate compressionDawson, Patricia Carol January 1993 (has links)
Relatively few studies have been carried out on polymers at high rates of deformation compared to more traditional materials such as metals, and it is therefore important to develop constitutive models to help predict how materials will behave under specified conditions. The stress-strain behaviour of polymers shows a very marked dependence on time (or rate) and temperature. Polymers (including polyethylene, polypropylene, nylon 66, polyetherketone, polyetheretherketone, a liquid crystal polymer, polyethersulphone and polycarbonate) have been compressed at strain rates of -10-3 to 1O-1s-1 (using an "Instron" which measures deformation versus time at constant rates of compression) and _103s-1 (using a novel drop-weight impact machine) to strains of up to -100%. This drop-weight system is different from commercially available machines in that it operates in compression rather than fracturing specimens and provides stress-strain data directly. The initial crystallinity and orientation of specimens were examined using x-ray diffraction, and kinetic decomposition parameters were obtained using differential scanning calorimetry. Also thermocouples were inserted into some specimens compressed at high strain rates in order to measure any rises in temperature. Several important results have emerged so far: I) sufficiently high bulk temperature rises occ;ur during high rate deformation to considerably alter the stress-strain curve from isothermal conditions; 2) localised deformation in the form of cracking or shear banding in tough polymers appears to lead to temperature rises sufficiently high for significant thermal decomposition to occur; 3) data obtained at lower rates could be approximately fitted to the Eyring Theory unlike that obtained at the highest rate; 4) initial investigations suggest that Poisson's ratio varies with strain and strain rate and is not a constant of 0.5 as generally assumed.
|
| 167 |
Deformation of semi-solid aluminium alloysHan, Do-Suck January 2000 (has links)
No description available.
|
| 168 |
Mechanical behaviour of materials at high rates of strain : a study of the double notch shear testRuiz, Daniel John January 1990 (has links)
No description available.
|
| 169 |
The effect of temperature on the pitting corrosion of Swedish Iron in OPC mortarsBenjamin, Sylvia Ella January 1990 (has links)
No description available.
|
| 170 |
Application of electrical measurements to monitor the breakdown of organic coating systems applied to metallic substratesThompson, Ian January 1994 (has links)
No description available.
|
Page generated in 0.0198 seconds