Research Article
Numerical Study of Damage Modes and Damage Assessment of CFST Columns under Blast Loading
Table 2
Material parameters of the infill concrete.
| Parameter | Mass density (kg/m3) | | | | | (MPa) | |
| Value | 2440 | 0.79 | 1.60 | 0.007 | 0.61 | 37.9 | 7.0 |
| Parameter | Shear modulus (GPa) | Maximum tensile pressure (MPa) | Threshold strain rate EPS0 (s−1) | Plastic strain before fracture EFMIN | Crushing pressure (MPa) | Crushing volumetric strain | Locking pressure (MPa) |
| Value | 14.86 | 4.0 | 1.0 | 0.01 | 16 | 0.001 | 800 |
| Parameter | Locking volumetric strain | Damage constant
| Damage constant
| Pressure constant (GPa) | Pressure constant (GPa) | Pressure constant (GPa) | |
| Value | 0.1 | 0.04 | 1.0 | 85 | −171 | 208 | |
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