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 MIL-HDBK-1013/12
Table C-49
Minimum Thickness of Polycarbonate (in.) to Survive Incident Overpressure from
500-lb (230-kg) TNT, Aspect Ratio, a/b = 3.0
Standoff Distance,
Plate
ft
Dimensions,
in. (m)
a
b
60
100
200
300
(20 m)
(30 m)
(60 m)
(90 m)
36
12
1
1/2
3/8
1/4
(0.90)
(0.30)
(25 mm)
(12 mm)
(9 mm)
(6 mm)
54
18
1 3/8
3/4
3/8
1/4
(1.35)
(0.45)
(35 mm)
(19 mm)
(9 mm)
(6 mm)
72
24
1 5/8
7/8
1/2
3/8
(1.80)
(0.60)
(41 mm)
(22 mm)
(12 mm)
(9 mm)
90
30
1 7/8
1
1/2
1/2
(2.25)
(0.75)
(48 mm)
(25 mm)
(12 mm)
(12 mm)
Table C-50
Minimum Thickness of Polycarbonate (in.) to Survive Incident Overpressure from
1000-lb (460-kg) TNT, Aspect Ratio, a/b = 3.0
Plate
Standoff Distance,
Dimensions,
ft
in. (m)
a
b
60
100
200
300
(20 m)
(30 m)
(60 m)
(90 m)
36
12
1 1/4
3/4
3/8
1/4
(0.90) (0.30) (32 mm)
(19 mm)
(9 mm)
(6 mm)
54
18
1 7/8
1
3/8
3/8
(1.35) (0.45) (48 mm)
(25 mm)
(9 mm)
(9 mm)
72
24
2 1/4
1 1/4
1/2
3/8
(1.80) (0.60) (57 mm)
(32 mm)
(12 mm)
(9 mm)
1 1/2
5/8
1/2
90
30
2 3/4
(2.25) (0.75) (70 mm)
(38 mm)
(16 mm)
(12 mm)
Cross-section is too thick for typical security frame, requires
special consideration.
C.15
Plate Data Preparation Procedure. This procedure helps
to prepare data worksheets for selecting a glazing system
subjected to blast loading. It provides a set of structures that
step an analyst through plate data preparation. A process chart
and description of the procedure are shown in Figure C-18.
C.15.1
Required Information. The following information is
required for plate data preparation:
a) Worksheets (see Appendix B):
1) Safevue Analysis (SA)
164
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