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Title: The dynamic mechanical characteristics of visco-elastic materials at high rates of loading using cylindrical shock waves initiated by an exploding wire
Author: Dirwish, Mohammed E.
ISNI:       0000 0001 3425 2431
Awarding Body: Loughborough University of Technology
Current Institution: Loughborough University
Date of Award: 1979
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A study of the properties of visco-elastic materials has been made by observing their response to large amplitude stress waves propagated in cylindrical specimens. The experimental work has been concerned with the production of shock waves resulting from exploding a wire inside a hollow cylinder; the propagation of these waves radially outwards within the cylindrical specimen and the response of the material to this loading. The explosion produced by discharging a high voltage (20-40 kV) capacitor across the ends of the wire creates a high intensity shock wave which propagates radially outwards towards the cylinder wall. Radial symmetry is to be expected in this case and the strong cylindrical blast waves which are produced have been studies by optical methods, mainly the schlieren technique using a high-speed image converter camera. The results obtained of the position and velocity of the shock front as a function of time show a remarkably good agreement with results of the blast wave theory for a cylindrical shock wave.
Supervisor: Not available Sponsor: Ministry of Higher Education, Iraq
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available