National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Debris Distribution.

AD636440

Publication Date	1966
Personal Author	Feinstein, D. I.
Page Count	2
Abstract	This study is a continuation of the ''Debris Clearance Study.'' That study developed methods of estimating gross debris accumulation in various types of urban areas, based on total structural demolition and uniform distribution of the debris over a given size area. The present study makes use of several of the tools developed in the previous report and expanded herein to more accurately predict the debris distribution. Structural fragmentation is defined for a particular set of blast and structural parameters. The trajectories of the transportable material are calculated, and the distribution of this material is found by size as well as mass. In order to establish the credibility of the fragmentation theories which were developed, a series of experiments were conducted on brittle beams under dynamic loading. A sample problem is worked out that utilizes the above techniques on a hypothetical building to illustrate how the building's debris distribution may appear under various conditions of building height and fragment size distribution. (Author)
Keywords	Nuclear explosion damage Debris Urban areas Distribution Structures Demolition
NTIS Subject Category	94H - Industrial Safety Engineering 74D - Chemical, Biological, & Radiological Warfare 77D - Nuclear Explosions & Devices
Corporate Authors	Iit Research Inst Chicago Ill Technology Center
Supplemental Notes	See also AD-422 319.
Document Type	Technical Report
Title Note	Research rept. (final).
NTIS Issue Number	196618
Contract Number	OCD-PS-64-50

Debris Distribution.

Debris Distribution.
AD636440

Publication Date	1966
Personal Author	Feinstein, D. I.
Page Count	2
Abstract	This study is a continuation of the ''Debris Clearance Study.'' That study developed methods of estimating gross debris accumulation in various types of urban areas, based on total structural demolition and uniform distribution of the debris over a given size area. The present study makes use of several of the tools developed in the previous report and expanded herein to more accurately predict the debris distribution. Structural fragmentation is defined for a particular set of blast and structural parameters. The trajectories of the transportable material are calculated, and the distribution of this material is found by size as well as mass. In order to establish the credibility of the fragmentation theories which were developed, a series of experiments were conducted on brittle beams under dynamic loading. A sample problem is worked out that utilizes the above techniques on a hypothetical building to illustrate how the building's debris distribution may appear under various conditions of building height and fragment size distribution. (Author)
Keywords	Nuclear explosion damage Debris Urban areas Distribution Structures Demolition
NTIS Subject Category	94H - Industrial Safety Engineering 74D - Chemical, Biological, & Radiological Warfare 77D - Nuclear Explosions & Devices
Corporate Authors	Iit Research Inst Chicago Ill Technology Center
Supplemental Notes	See also AD-422 319.
Document Type	Technical Report
Title Note	Research rept. (final).
NTIS Issue Number	196618
Contract Number	OCD-PS-64-50