simulation of the ballistic perforation of aluminum plates with abaqus/explicit 2012

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This Technology Brief describes Abaqus/Explicit modeling of the ballistic impact of metal projectiles on metal targets. It will demonstrate the utility of Abaqus/Explicit as a tool for reducing the amount of experimental testing as well as assessing the projectile residual velocities and time-resolved kinematics.

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Simulation of the ballistic perforation of aluminum plates with Abaqus/ExplicitAbaqus Technology BriefSummary

Key Abaqus/Explicit Features and Benefits Mie-Grneisen equation of state to model materials at high pressure Johnson-Cook plasticity model that accounts for strain rate, thermal effects and compressibility Johnson-Cook dynamic failure model within the Abaqus ductile damage initiation criterion for metals Progressive damage framework

Background

Analysis Approach

2

Mesh details

Constitutive model

B 0 0

n melt m C 0 transition

A

c0

s

A

A B

n

Table 1: Input parameters for the Mie-Grneisen EOS model, [4, 5]0 , c0 , 0 s

Table 2: Input parameters for the Johnson-Cook plasticity model, [5, 6, 7]A, B,

n

melt

transition,

m

C

0

,

3

Results Normal Impact

Failure model

Oblique Impact

Initial and Boundary Conditions

Table 3: Calibrated input parameters for the Johnson-Cook plasticity model A, B,

n

melt

transition,

m

C

0

Table 4: Input parameters for the Johnson-Cook dynamic failure model, [5, 6, 7]

d1

d2

d3

d4

d5

4

Conclusions

5

References

SIMULIA References

About SIMULIA

The 3DS logo, SIMULIA, Abaqus and the Abaqus logo are trademarks or registered trademarks of Dassault Systmes or its subsidiaries, which include Abaqus, Inc. Other company, product and service names may be trademarks or service marks of others. Copyright Dassault Systmes, 2012

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