Effect of Explosions on Snow Structures PDF Download
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Author: Henryk Szostak
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 68
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Book Description
During the summar of 1960, tests were conducted on the Greenland Ice Cap to study the resistance and behavior of snow structures to dynamic loading from a surface or above-surface air blast of 4 or 32 lb. spherical cast TNT. A number of small-and full-scale vertical and full-size horizontal arches were constructed in processed snow pads. Arch spans and arch crown thickness were varied to establish a relation between surface overpressure and the ratio of arch span (S) to arch crown thickness (T). Some correlation was found for vertical structures but none between vertical and horizontal arches. The results show that, for the same charge weight and S/T ratio, the horizontal structures can withstand over 100 psi overpressure, while smale-scale vertical arches fail at 20 psi. (Author).
Author: Malcolm Mellor
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 62
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Book Description
This monograph summarizes available information on the response of snow to explosions and on the modification of blase effects by snow.
Author: Henryk Szostak
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 68
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Book Description
During the summar of 1960, tests were conducted on the Greenland Ice Cap to study the resistance and behavior of snow structures to dynamic loading from a surface or above-surface air blast of 4 or 32 lb. spherical cast TNT. A number of small-and full-scale vertical and full-size horizontal arches were constructed in processed snow pads. Arch spans and arch crown thickness were varied to establish a relation between surface overpressure and the ratio of arch span (S) to arch crown thickness (T). Some correlation was found for vertical structures but none between vertical and horizontal arches. The results show that, for the same charge weight and S/T ratio, the horizontal structures can withstand over 100 psi overpressure, while smale-scale vertical arches fail at 20 psi. (Author).
Author: Clifton W. Livingston
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 140
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Book Description
Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Malcolm Mellor
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 0
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Book Description
This monograph summarizes available information on the response of snow to explosions and on the modification of blase effects by snow.
Author: Stephan Simioni
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Clifton W. Livingston
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 108
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Book Description
Author: John H. S. Lee
Publisher: Cambridge University Press
ISBN: 1316592081
Category : Technology & Engineering
Languages : en
Pages : 217
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Book Description
Explosions, and the non-steady shock propagation associated with them, continue to interest researchers working in different fields of physics and engineering (such as astrophysics and fusion). Based on the author's course in shock dynamics, this book describes the various analytical methods developed to determine non-steady shock propagation. These methods offer a simple alternative to the direct numerical integration of the Euler equations and offer a better insight into the physics of the problem. Professor Lee presents the subject systematically and in a style that is accessible to graduate students and researchers working in shock dynamics, combustion, high-speed aerodynamics, propulsion and related topics.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309043352
Category : Science
Languages : en
Pages : 97
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Book Description
The present mortality as a result of snow avalanches exceeds the average mortality caused by earthquakes as well as all other forms of slope failure combined. Snow avalanches can range from small amounts of loose snow moving rapidly down a slope to slab avalanches, in which large chunks of snow break off and destroy everything in their path. Although considered a hazard in the United States since the westward expansion in the nineteenth century, in modern times snow avalanches are an increasing concern in recreational mountainous areas. However, programs for snow avalanche hazard mitigation in other countries are far ahead of those in the United States. The book identifies several steps that should be taken by the United States in order to establish guidelines for research, technology transfer, and avalanche legislation and zoning.
