Equivalent Weight Factors for Four Plastic Bonded Explosives: PBX-108, PBX-109, AFX-103 and AFX-702 PDF Download
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Author:
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Languages : en
Pages : 91
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Book Description
Four free-air, shock-front parameters, peak overpressure, positive impulse, time of arrival, and positive duration, were used to determine the equivalent weight factor for four plastic-bonded explosives; AFX-103, AFX-702, PBX-108, and PBX-109. The equivalent weight factor, a measure of explosive effectiveness relative to that of a scaled standard explosive, is the weight ratio of the weight of any subject explosive to the weight of a standard explosive (pentolite) for equal gage readings (pressure, time of arrival, etc.) at equal distances. The aluminized explosives, AFX-702 and PBX-109 were found to be more effective than the non-aluminized explosives, AFX-103 and PBX-108, over the distance interval, approximately one to eighteen meters, for which measurements were made. Theoretical computations show that the non-aluminized explosives examined have higher pressures than the aluminized explosives within ten charge radii of the explosive. An unexpectedly high-intensity electromagnetic pulse generated by the aluminized, plastic-bonded explosives made it impossible to make measurements at scaled distances less than 0.58 m/ KG(to the 1/3 power). (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
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Book Description
Four free-air, shock-front parameters, peak overpressure, positive impulse, time of arrival, and positive duration, were used to determine the equivalent weight factor for four plastic-bonded explosives; AFX-103, AFX-702, PBX-108, and PBX-109. The equivalent weight factor, a measure of explosive effectiveness relative to that of a scaled standard explosive, is the weight ratio of the weight of any subject explosive to the weight of a standard explosive (pentolite) for equal gage readings (pressure, time of arrival, etc.) at equal distances. The aluminized explosives, AFX-702 and PBX-109 were found to be more effective than the non-aluminized explosives, AFX-103 and PBX-108, over the distance interval, approximately one to eighteen meters, for which measurements were made. Theoretical computations show that the non-aluminized explosives examined have higher pressures than the aluminized explosives within ten charge radii of the explosive. An unexpectedly high-intensity electromagnetic pulse generated by the aluminized, plastic-bonded explosives made it impossible to make measurements at scaled distances less than 0.58 m/ KG(to the 1/3 power). (Author).
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Category : Aeronautics
Languages : en
Pages : 722
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: W.E. Baker
Publisher: Elsevier
ISBN: 0444599886
Category : Political Science
Languages : en
Pages : 840
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Book Description
Explosion Hazards and Evaluation presents the principles and applications of explosion hazards evaluation. The text is organized into nine chapters. Chapters 1 and 2 discuss the energy release processes which generate accidental explosions, and the resulting development of pressure and shock waves in a surrounding atmosphere. The manner in which the "free-field" waves are modified in interacting with structures or other objects in their paths is discussed in Chapter 3. Structural response to blast loading and non-penetrating impact is covered in two chapters, with Chapter 4 including simplified analysis methods and Chapter 5 including numerical methods. Chapter 6 includes a rather comprehensive treatment of generation of fragments and missiles in explosions, and the flight and effects of impact of these objects. Chapter 7 considers thermal radiation of large chemical explosions. Explosions may or may not cause damage or casualty, and various damage criteria have been developed for structures, vehicles, and people. These criteria are presented in Chapter 8. General procedures for both the postmortem evaluation of accidental explosions and for design for blast and impact resistance are reviewed in Chapter 9. Engineers, scientists, and plant safety personnel will find the book very useful.
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Category : Science
Languages : en
Pages : 1390
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Author: Samuel J. Brown
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Category :
Languages : en
Pages : 438
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Category :
Languages : en
Pages : 1064
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Author: Ray Horak
Publisher: John Wiley & Sons
ISBN: 1118585801
Category : Technology & Engineering
Languages : en
Pages : 795
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Book Description
For an accessible and comprehensive survey of telecommunications and data communications technologies and services, consult the Telecommunications and Data Communications Handbook, which includes information on origins, evolution and meaningful contemporary applications. Find discussions of technologies set in context, with details on fiber optics, cellular radio, digital carrier systems, TCP/IP, and the Internet. Explore topics like Voice over Internet Protocol (VoIP); 802.16 & WiMAX; Passive Optical Network (PON); 802.11g & Multiple Input Multiple Output (MIMO) in this easily accessible guide without the burden of technical jargon.
Author: James Stroman
Publisher: AMACOM/American Management Association
ISBN:
Category : Business & Economics
Languages : en
Pages : 600
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Book Description
This handbook for administrative assistants and secretaries covers such topics as telephone usage, keeping accurate records, making travel arrangements, e-mail, using the Internet, business documents, and language usage.
Author: Wilfred Edmund Baker
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 298
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Author: Bruce R. Elbert
Publisher: Artech House
ISBN: 1596932112
Category : Technology & Engineering
Languages : en
Pages : 463
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Book Description
Whether you are a technical or management professional, you can turn to this highly understandable and comprehensive overview of satellite technology, applications, and management. Thoroughly updated and expanded, this third edition boasts a wealth of new material, including added coverage of systems engineering as applied to satellite communications, clear explanations of all aspects of building and using a satellite systems, and discussions on digital communications and processing in modern satellite networks. The new edition also examines critical success factors and how to avoid the pitfalls in selecting satellite and ground resources. The book covers all the fundamentals of satellites, ground control systems, and earth stations, considering the design and operation of each major segment. You gain a practical understanding of the basic construction and usage of commercial satellite networks-how parts of a satellite system function, how various components interact, which role each component plays, and which factors are the most critical to success. Moreover, the book explores the economic, legal, and management issues involved in running the business of satellite communications.
