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Ballistics, 2nd Edition
book

Ballistics, 2nd Edition

by Donald E. Carlucci, Sidney S. Jacobson
August 2013
Intermediate to advanced content levelIntermediate to advanced
608 pages
21h 36m
English
CRC Press
Content preview from Ballistics, 2nd Edition
439Shock Physics
If we were to shock a material with a certain pulse length, λ
1
, over a particular time, t
1
, the
shock would have moved a distance
λ
11
= Ut
(16.89)
The instant the applied load has ceased, a relief wave would begin moving into the
material and at a time t > t
1
would be located at a distance from the point of shock ini-
tiation of
dUtt
21
=−
R
()
(16.90)
Since we saw from our examination of Equations 16.87 and 16.88 that U
R
> U, we can deter-
mine the distance at which the relief wave will catch up to the shock wave through
Ut Utt=−
R
()
1
(16.91)
If we insert Equations 16.87 and 16.88 into this expression, we obtain
()()()csut csut t
00 1
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Publisher Resources

ISBN: 9781466564374