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A Dynamic Analysis Of An Explosion Driven Hydrodynamic Conical Distributed Breach Shock Tube, Lee E. Griesemer
A Dynamic Analysis Of An Explosion Driven Hydrodynamic Conical Distributed Breach Shock Tube, Lee E. Griesemer
Retrospective Theses and Dissertations
In order to better simulate an explosive underwater environment, a new design of the existing explosion driven hydrodynamic conical shock tube has been proposed. This new concept calls for the removal of part of the old tube to accommodate a distributed breach plug. The distributed breach should enhance shock wave characteristics by minimizing the energy losses associated with plastic deformations which occur at detonation. This report makes use of a finite element program, SAP IV, to investigate the modal characteristics of the new distributed breach design. A dynamic response history analysis has also been performed in order to predict the …
Analysis Of Structural Dynamic Characteristics Of An Explosion Driven Hydrodynamic Conical Shock Tube, Walter R. Sanders
Analysis Of Structural Dynamic Characteristics Of An Explosion Driven Hydrodynamic Conical Shock Tube, Walter R. Sanders
Retrospective Theses and Dissertations
Previous tests of an explosion driven hydrodynamic shock tube revealed peak pressure data significantly lower than values predicted from the semiempirical scaling laws. It was hypothesized that part of the deviation was due to error in determining shock wave parameters and part might be due to measurement error caused by mechanical vibration of the tube. This investigation was conducted in two parts. In the first part, shock wave parameters were determined using a digital computer and curve fitting techniques to analyze digitized shock wave data. The second part involved determining the frequency components of the shock wave data noise content …
Design And Analysis Of An Explosive Driven Hydrodynamic Conical Shock Tube, Leonard W. Connell
Design And Analysis Of An Explosive Driven Hydrodynamic Conical Shock Tube, Leonard W. Connell
Retrospective Theses and Dissertations
An explosive driven, water filled, conical shock tube was designed and evaluated regarding its ability to amplify a charge weight and to produce hydrodynamic spherical shock waves. The results show that the shock waves in the tube are essentially spherical in nature--with an initial exponential shape, peak pressure attenuation as (1/R)1.13 and the time constant spreading roughly as (R).22. The charge weight was amplified by a factor of 3600 compared to a theoretical amplification of 7770. An estimate of the energy absorbed by the breach plug (which houses the charge) during an explosion was performed. The peak pressure data taken …