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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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