MATERIAL BEHAVIOR UNDER HYPERVELOCITY IMPACT

MATERIAL “DISINTEGRATION”

HIGH ENERGY DENSITY

INTENSE RADIATION ®MELTING

VAPORIZATION

IMPACT VELOCITIES REQUIRED TO PRODUCE MELTING AND VAPORIZATION OF THREE METALS

IRON

ALUMINUM

LEAD

Incipient melting (Km/s)

6.6 – 9.2

5.2 – 7.3

1.3 –1.8

Complete melting (Km/s)

7.1 – 10

6.6 – 9.2

1.6 – 2.2

Incipient vaporization (Km/s)

10 – 14

11 –15

3.3 – 4.6

Complete vaporization (Km/s)

19 – 26

24 – 33

6.8 – 9.5

   The area is called elastodynamics. Very important in the study of stress wave propagation

·        Crash analysis

·        Earth quakes

·        Armor/Anti-armor

·        Low – medium – high impact studies

Next: Types of Waves
11/29/01 0:29:56 11/29/01 0:30:16

	*IRON*	*ALUMINUM*	*LEAD*
Incipient melting (Km/s)	6.6 – 9.2	5.2 – 7.3	1.3 –1.8
Complete melting (Km/s)	7.1 – 10	6.6 – 9.2	1.6 – 2.2
Incipient vaporization (Km/s)	10 – 14	11 –15	3.3 – 4.6
Complete vaporization (Km/s)	19 – 26	24 – 33	6.8 – 9.5