Quantcast Blast Damage Analysis

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MIL-HDBK-1013/14
APPENDIX D (Continued)
D.5
Blast Damage Analysis
D.5.1
Blast Damage Effects. As noted above, pressure and pressure-related effects have
been found to scale based on the R/W1/3 ratio. Table D-3 shows the blast effects that might occur
at typical scaled distances.
Table D-3
Damage as a Function of Pressure and Distance
R/W1/3
Damage
6
Corresponds to an incident pressure of 29 psi (2.03 kgf/sq cm) when the
source of an explosion is in the open. Conventional, unstrengthened
buildings will be destroyed completely.
9
Corresponds to an incident pressure of 12 psi (0.84 kgf/sq cm) when the
source of an explosion is in the open. Unstrengthened buildings will suffer
severe structural damage approaching total destruction.
10 to 11
Corresponds to an incident pressure of 8.4 psi (0.59 kgf/sq cm) when the
source of an explosion is in the open. Unstrengthened buildings will suffer
damage approaching total destruction.
18
Corresponds to an incident pressure of 3.6 psi (0.25 kgf/sq cm) when the
source of an explosion is in the open. Damage to unstrengthened buildings
will be serious, and will approximate 50% or more of the total replacement
cost.
24 to 25
Corresponds to an incident pressure of 2.3 psi (0.16 kgf/sq cm) when the
source of an explosion level is in the open. Unstrengthened buildings can be
expected to sustain damage approximating 20% of their replacement cost.
30
Corresponds to an incident pressure of 1.7 psi (0.12 kgf/sq cm) when the
source of an explosion is in the open. Unstrengthened buildings can be
expected to sustain damage approximating 10% of their replacement cost.
Typically 100% of glazing will be broken.
40
Corresponds to an incident pressure of 1.1 psi (0.08 kgf/sq cm) when the
source of an explosion is in the open. Unstrengthened buildings can be
expected to sustain damage up to about 5% of their replacement cost. About
60% of ordinary glazing will be broken.
50
Corresponds to an incident pressure of 0.8 psi (0.06 kgf/sq cm) when the
source of an explosion is in the open. About 30 % of the ordinary glazing
will be broken.
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