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DOD-TP-12 Fragment and Debris Hazards.pdfDownload 

Fragment and Debris Hazards

FIT analysis of fragment and debris hazards is considerably less 
developed a-Ian techniques for predicting blast damage from detonation 
a quant i of explosivc material. Generally, whi L he effects of 
t ceatcd deterministically, the investigation of fragment 
nay b.. 
requi tes a probabi list ic approach. • The reason Cor this is L hat 
f cagntc•. process involves a degree OL randomness in the phe- 
of {raccure of metal casc material surrounding L he bursting 
charge . 
ffcnce the resul ting fragment mass distributions cannot be 
predicted L com an underlying elementary theory, and variations are to 
be cxpectcd in successive firings under ostensibly identical conditions. 
Moreover, v. i ven the random nature of the breakup of case material, and 
hence or the ballistic properties of fragments, tcminal ballistic 
such as the impact distance and velocity will also exhibit 
'A tat istical variations. The L erminal bal properties in turn 
z:eterrninc.• hazard levels.
The distribution Of number 
mass, and their velocities, are 
detonation of single weapons in 
of fragments with respect to f ragment 
determined experimentally by static 
an arena of witness panels and recovery 
boxes containing material in which fragments are trapped, and from which 
they can be separated. 
Screening or magnetic separation techniques are 
used if the recovery medium consists of loose material such as sawdust . 
F i bcrboard bundies or card packs, if used as fragment traps, are about 
a meter thi Ck. They require disassembly and a tedious process of fragment 


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Microsoft Excel Spreadsheets

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The Indispensable Tool For Engineers, Mathematicians, Scientists, Accountants and Teaching Professionals!


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