blast thesis
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Air
Explosive
Blast Wave
DetonationWave
Reflected
Wave
Centre"Bounced"
Wave
Secondary Blast
Wave
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Casing
Blast Wave
Explosive
Primary
Fragment
Secondary
Fragment
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Flow
Following
Zone
Reaction
Pressure
Distance
Shock Front
D
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Line
Rayleigh
Curve
HugoniotD
velocity
pressure
Hugoniot
Curve
Rayleigh Line
CJ Point
velocity
pressure
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W
CJ
S N
N
=1 =0
velocity
pressure
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P
t T
PO
PS
Pmin
A
Time
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Pressure
I
II
Time
Pressure
Distance
t=t t=t1 2
t=t3
t=t4
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Blast Wave
Reflected Wave
Stess Wave
Blast Wave
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Pressure
Time
t’t2
t3
t4
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R(x)
xel
xmax
yield point
Displacement
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1
1
Damage
x > xmax
I
x KMmax
2F
Kxmax
Quasi-Static
Asymptote
Impulsive
Asymptote
No Damage
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Pressure
Q f(t) = C
Time
Pr
T1ta 2 3T T
CD Dq(t)
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ABomb
B ABomb
B
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Bomb
A B
Bomb
A B
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0
0.2
0.4
0.6
0.8
1
0
2
4
6
8
10
0
0.2
0.4
0.6
0.8
1
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F
Fres
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Force
Plastic Deformation Elastic
Deformation
Displacement
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Displacement
Force
Plastic
Elastic
Stress
Strain
slope = E
Area = elastic energy stored per unit volume
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G, R
R
2R
3R
aa
ca = ac
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Root
hitEdge
haltEdge
Root
Root
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Middle
y
x
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