344
10 Residual Axial Capacity of UHPCC-FST Column Under …
Table 10.5
Parameters for steel tube, air and TNT
Steel tube (*MAT_PIECEWISE_LINEAR_PLASTICITY)
Density
7850 kg/m 3
Young’s modulus
206 GPa
Yield stress
318.5 MPa
Strain rate model C
40 s −1
Strain rate model p
5
Poisson’s ratio
0.3
Failure strain
0.26
Air (*MAT_NULL, *EOS_LINEAR_POLYNOMIAL) (Cheng et al. 2013)
Initial density
ρ 0
1.29 kg m −3
C
0 -C
3
0
C
4
0.4
Internal energy E
0
2.5
× 10 5
J m −3
C
5
0.4
C
6
0
Pressure cut-off P
c
0
Dynamic viscosity
0
TNT (*MAT_HIGH_EXPLOSIVE_BURN, *EOS_JWL) (Cheng et al. 2013)
Initial density
ρ 0
1630 kg m −3
CJ pressure P
CJ
21 GPa
Omega
ω
0.3
Internal energy E
0
7
× 10 9
J m −3
A
371.2 GPa
B
3.231 GPa
Detonation Velocity D
6930 m s −1
R
1
4.15
R
2
0.95
10 Residual Axial Capacity of UHPCC-FST Column Under …
Table 10.5
Parameters for steel tube, air and TNT
Steel tube (*MAT_PIECEWISE_LINEAR_PLASTICITY)
Density
7850 kg/m 3
Young’s modulus
206 GPa
Yield stress
318.5 MPa
Strain rate model C
40 s −1
Strain rate model p
5
Poisson’s ratio
0.3
Failure strain
0.26
Air (*MAT_NULL, *EOS_LINEAR_POLYNOMIAL) (Cheng et al. 2013)
Initial density
ρ 0
1.29 kg m −3
C
0 -C
3
0
C
4
0.4
Internal energy E
0
2.5
× 10 5
J m −3
C
5
0.4
C
6
0
Pressure cut-off P
c
0
Dynamic viscosity
0
TNT (*MAT_HIGH_EXPLOSIVE_BURN, *EOS_JWL) (Cheng et al. 2013)
Initial density
ρ 0
1630 kg m −3
CJ pressure P
CJ
21 GPa
Omega
ω
0.3
Internal energy E
0
7
× 10 9
J m −3
A
371.2 GPa
B
3.231 GPa
Detonation Velocity D
6930 m s −1
R
1
4.15
R
2
0.95