Determination of Explosive Blast Loading Equivalencies with an Explosively Driven Shock Tube PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Recently there has been significant interest in evaluating the potential of many different non-ideal energetic materials to cause blast damage. We present a method intended to quantitatively compare the blast loading generated by different energetic materials through use of an explosively driven shock tube. The test explosive is placed at the closed breech end of the tube and initiated with a booster charge. The resulting shock waves are then contained and focused by the tube walls to form a quasi-one-dimensional blast wave. Pressure transducers along the tube wall measure the blast overpressure versus distance from the source and allow the use of the one-dimensional blast scaling relationship to determine the energy deposited into the blast wave per unit mass of test explosive. These values are then compared for different explosives of interest and to other methods of equivalency determination.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Recently there has been significant interest in evaluating the potential of many different non-ideal energetic materials to cause blast damage. We present a method intended to quantitatively compare the blast loading generated by different energetic materials through use of an explosively driven shock tube. The test explosive is placed at the closed breech end of the tube and initiated with a booster charge. The resulting shock waves are then contained and focused by the tube walls to form a quasi-one-dimensional blast wave. Pressure transducers along the tube wall measure the blast overpressure versus distance from the source and allow the use of the one-dimensional blast scaling relationship to determine the energy deposited into the blast wave per unit mass of test explosive. These values are then compared for different explosives of interest and to other methods of equivalency determination.
Author: Mark L. Elert
Publisher: American Institute of Physics
ISBN:
Category : Science
Languages : en
Pages : 766
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Book Description
This volume embodies the most recent research on shock compression of condensed matter, and includes 363 plenary, invited and contributed papers on topics including equation of state, phase transitions, chemical reactions, warm dense matter, fracture, geophysics and planetary science, energetic materials, optical studies, materials modeling, and recent experimental developments in the field of shock compression of condensed matter.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
There is significant interest in quantifying the blast violence associated with various nonideal explosions. Such data is essential to evaluate the damage potential of both explosive cookoff and terrorist explosive scenarios. We present a technique designed to measure the source energy associated with a non-ideal, asymmetrical, and three-dimensional explosion. A tube is used to confine and focus energy from a blast event into a one-dimensional, quasi-planar shock front. During propagation along the length of the tube, the wave is allowed to shocksteepen into a more ideal form. Pressure transducers then measure the shock overpressure as a function of the distance from the source. One-dimensional blast scaling theory allows calculation of the source energy from this data. This small-scale test method addresses cost and noise concerns as well as boosting and symmetry issues associated with large-scale, three-dimensional, blast arena tests. Results from both ideal explosives and non-ideal explosives are discussed.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1280
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Book Description
Author: Raj K. Narayan
Publisher: McGraw-Hill
ISBN: 9780070456624
Category : Medical
Languages : en
Pages : 1558
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Book Description
This reference is a comprehensive work in the field of neurotrauma and critical care. It incorporates the fields of head injury, spinal injury and basic neurotrauma research into one source. The major emphasis is on the treatment of patients with head and spinal cord injury, including the management of all other problems that bear upon the care of these patients.
Author: Firas H. Kobeissy
Publisher: CRC Press
ISBN: 1466565993
Category : Medical
Languages : en
Pages : 718
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Book Description
With the contribution from more than one hundred CNS neurotrauma experts, this book provides a comprehensive and up-to-date account on the latest developments in the area of neurotrauma including biomarker studies, experimental models, diagnostic methods, and neurotherapeutic intervention strategies in brain injury research. It discusses neurotrauma mechanisms, biomarker discovery, and neurocognitive and neurobehavioral deficits. Also included are medical interventions and recent neurotherapeutics used in the area of brain injury that have been translated to the area of rehabilitation research. In addition, a section is devoted to models of milder CNS injury, including sports injuries.
Author: Muhamed Suceska
Publisher: Springer
ISBN: 9781461269045
Category : Technology & Engineering
Languages : en
Pages : 225
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Book Description
It seems that there is no book that treats the measurement of the physical pa rameters of explosives as its only subject, although limited information is avail able in a number of books. Therefore, I have tried to bridge this gap in the lit erature with this book. A large number of various physical parameters have to be determined ex perimentally in order to test or characterise an explosive. Various physical principles have been applied for such measurements. Accordingly, a large number of different experimental methods exist, as well as various testing appa ratuses and procedures. On the other hand, great progress has been made recently in the study of detonation phenomena. New measuring techniques can assess extremely short processes to below nanoseconds scale. They make it possible to determine im portant parameters in detonation physics. I have made a great attempt to cover the available literature data on the subject. Because it would be a highly demanding task to include in a single volume all the methods that are in use by various testing agencies, I have tried to give primarily the principles for determination of individual physical pa rameters of explosives by different measuring methods as well as data treatment procedures.
Author: Wilfred E. Baker
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
Past internal blast testing within an eight-scale loads model of a multi-bay containment structure has provided a data base for both reflected internal blast loads and long-terms gas phase pressures within a strong containment structure. These data are analyzed to determine TNT equivalence for internal blast loading, and separate values for TNT equivalence for gas phase pressures, for two plastic-bonded explosives, PBX-9404 and PBX-9502. Different values are obtained for the two phases of the internal blast loading, and both differ from values which would be estimated on the basis of heats of explosion relative to TNT.
Author: Peter O. K. Krehl
Publisher: Springer Science & Business Media
ISBN: 3540304215
Category : Science
Languages : en
Pages : 1298
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Book Description
This unique and encyclopedic reference work describes the evolution of the physics of modern shock wave and detonation from the earlier and classical percussion. The history of this complex process is first reviewed in a general survey. Subsequently, the subject is treated in more detail and the book is richly illustrated in the form of a picture gallery. This book is ideal for everyone professionally interested in shock wave phenomena.
Author: Gilbert F. Kinney
Publisher: Springer Science & Business Media
ISBN: 3642866824
Category : Technology & Engineering
Languages : en
Pages : 281
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Book Description
A purpose of science is to organize diversified factual knowledge into a coherent body of information, and to present this from the simplest possible viewpoint. This is a formidable task where our knowledge is incomplete, as it is with explosions. Here one runs the risk of oversimplification, naivete, and incom pleteness. Nevertheless a purpose of this work is to present as simply as possible a general description of the basic nature of explosions. This treatise should be of interest to all who are working with explosives such as used in construction or in demolition work, in mining operations, or in military applications. It should also be of interest to those concemed with disasters such as explosions or earthquakes, to those involved in civil defense precautions, and to those concemed with defense against terrorists. That is, this material should be of interest to all who wish to utilize, or to avoid, the effects of explosions as weil as to those whose interest is primarily scientific in nature.
