The New DDESB Blast Effects Computer


Book Description

In 1978, the Department of Defense Explosives Safety Board (DDESB) released a circular slide rule called the "Blast Effects Computer (BEC)." This slide rule was designed to solve problems and provide data related to the expected damage to various possible targets due to blast effects resulting from an explosion of ammunition or explosives stored above ground or in earth-covered magazines. In the 20 years that have elapsed since the slide rule was designed, the state of the art in predicting both blast effects and damage has progressed significantly. However, the need for a prediction tool has not disappeared in the intervening years; if anything, this need has increased. As a result, the DDESB has prepared an update to the circular slide rule. This update is in the form of an EXCEL spreadsheet template that will run on any computer upon which EXCEL Version 5.0 (or later) is installed. Version 1.0 of the new blast effects computer (BECV1) was a simple computerization of the circular slide rule with an update to the Kingery airblast pressure-distance model and other minor corrections to the algorithms. This version was released in November 1997. Version 2.0 is now available. Incorporated into this version are updated airblast information for earth-covered magazines and hardened aircraft shelters. Also included are updated airblast algorithms for MK 82, MK 83, MK 84 and M117 bombs, as well as M107 155-mm projectiles. This paper describes BECV2, discusses some of the new algorithms that are used, and demonstrates the computer's use through illustrative examples.







Forensic Explosion Seismology


Book Description

This book discusses three major physical phenomena for active source seismology, namely underwater explosions, underground nuclear explosions, and large-scale on-surface chemical explosions. In particular, contributors consider how to use the technologies and applications in active source seismology and seismo-acoustics, rather than the theoretical approach for the resolution of the forensic explosion seismology in the light of an application for defense sciences. The volume also presents seismological investigations of discrimination between earthquakes and man-made explosions.




IUTAM Symposium on Impact Biomechanics: From Fundamental Insights to Applications


Book Description

Substantial fundamental work has been undertaken in the different aspects of impact biomechanics over the past three decades. Much of this has been motivated and undertaken by the automotive industry in their efforts to improve transport safety. More recently, however, it has become apparent that the multidisciplinary synergies which are realised by interactions between engineers, scientists and clinical practitioners will ultimately lead to a greater understanding of the complex interacting phenomena within the human body after it has sustained an impact. In turn, this greater depth of knowledge will provide more fundamental insights into the analysis, diagnosis, treatment and prevention of impact injuries across a broader spectrum of accident environments. This book contains the edited papers of the IUTAM Symposium on the Biomechanics of Impact, which was held in University College Dublin, Ireland in July 2005. These papers can be grouped into those that are concerned with the different causes of accidents (e.g., transport, occupational and sports injuries), the mechanics involved in accident analysis (e.g., accident investigation, computational modelling techniques), the different types of resulting traumatic injuries (including musculoskeletal, organ, spinal and head injuries), methods of assessing the extent of injury (e.g., injury assessment, injury criteria, constitutive laws for human tissue), and providing protection during an impact (e.g., injury prevention, energy absorption materials, and safety devices). Researchers active in the area of biomechanics will find the book very useful in addressing recent developments in these areas.










Structures Under Shock and Impact IX


Book Description

This text examines the interaction between blast pressure and surface or underground structures, whether the blast is from civilian, military, dust and natural explosions, or any other source.




Metal-Fluorocarbon Based Energetic Materials


Book Description

Metal-Fluorocarbon Based Energetic Materials This exciting new book details all aspects of a major class of pyrolants and elucidates the progress that has been made in the field, covering both the chemistry and applications of these compounds. Written by a pre-eminent authority on the subject from the NATO Munitions Safety Information Analysis Center (MSIAC), it begins with a historical overview of the development of these materials, followed by a thorough discussion of their ignition, combustion and radiative properties. The next section explores the multiple facets of their military and civilian applications, as well as industrial synthetic techniques. The critical importance of the associated hazards, namely sensitivity, stability and aging, are discussed in detail, and the book is rounded off by an examination of the future of this vital and expanding field. The result is a complete guide to the chemistry, manufacture, applications and required safety precautions of pyrolants for both the military and chemical industries. From the preface: “... This book fills a void in the collection of pyrotechnic literature... it will make an excellent reference book that all researchers of pyrolants and energetics must have...” Dr. Bernard E. Douda, Dr. Sara Pliskin, NAVSEA Crane, IN, USA