Research Article
Experimental Study of the Effectiveness of Sacrificial Cladding Using Polymeric Foams as Crushable Core with a Simply Supported Steel Beam
Table 3
Loading parameters and dynamic properties for an elastic-plastic, simply supported beam.
| | Parameter | Symbol/formula | Values (unit) |
| | Peak reflected pressure | | 13.85 (MPa) | | Positive phase duration | | 0.324 (ms) | | Beam span | | 0.6 (m) | | Beam mass | | 1.87 (kg) | | Beam thickness | | 5 (mm) | | Beam width | | 80 (mm) | | Moment of inertia | | 833 (mm4) | | Young’s modulus | | 240 (GPa) | | Yield strength | | 353.85 (MPa) | | Load-mass factor | | 0.49 (—) |
| | | | Experimental value | Analytical value |
| | Beam stiffness | | 35.5 | 44.4 (kN/m) | | Equivalent mass | | 0.92 | 0.92 (kg) | | Natural period | | 32 | 29 (ms) | | Time ratio | | 9.5 10−3 | 10−2 | | Maximum deflection | | 104 | 94 (mm) | | Permanent plastic deflection | | 57.57 | 63 (mm) | | Maximum resistance | | 1.4 | 1.3 (kN) |
|
|
