Issue 55

M. Rahmani et alii, Frattura ed Integrità Strutturale, 55 (2021) 88-109; DOI: 10.3221/IGF-ESIS.55.07

In the software for air as a filler, conditions such as internal energy and density must be defined, which are shown in Tab. 3 of the values of parameters.

Figure 16: Two-dimensional geometry.

Materials Aluminum

EOS

Failure model Johnson-Cook

Strength model Johnson-Cook

Shock

Al foam

Crushable Foam

- - -

Linear

C4 Air

JWL

- -

Ideal gas

Table 3: Equations used in modeling.

Figure 17: Shock tube dimensions and explosive charge placement coordinates.

Name

Initial

Material Density

AIR

1.23E-3(g/cm 3 )

Internal Energy Shell Thickness

206.8 J

0.00E+00 0.00E+00

X Velocity Y Velocity

0.00E+00 Table 3: Initial condition for air as a Euler filler.

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