SAMHOON Mainly Works for CBRN Facilities, Special Doors And Thermal Sight
Steel Grade | Yield Strength [Mpa] |
Tensile Strength [Mpa] |
Elongation at Break [%] |
---|---|---|---|
S275 | 275 | 560 | 22 |
S355 | 355 | 630 | 22 |
4140 | 867 | 1150 | 17.5 |
The Mechanical Properties of the Materials
Piecewise Linear, Non-linear Plasticity Model for the Materials.
Impulse Loading on the Structure wrt JSP 482 Regulation
Stress Levels of the Door after Internal Blast
Blast from Inside the Cell
Maximum Displacement of the Door after Internal Blast
Based on the FEA calculation results (Stress, Displacement, etc.) overall sliding door structure is investigated with the given design and material information for two blast loading scenarios in accordance with JSP 482 Regulation4, one from outside the cell and one is inside the cell. Some risk is observed especially at the welding connections and localized stress points. However, for the material system, the threshold for stress and plastic strain is not exceeded. Measured maximum displacement values also lead to a conclusion that the door system is likely to be operable after blast loading. Under the highlight of the technical analysis the details of which are explained; it is found that the design under consideration can successfully withstand the given impulse and fulfills all requirements designated in the Ministry of Defense Explosives Regulations, JSP 482, Edition 4, January, 2013.
Steel Grade | Yield Strength [Mpa] |
Tensile Strength [Mpa] |
Elongation at Break [%] |
---|---|---|---|
S275 | 275 | 560 | 22 |
S355 | 355 | 630 | 22 |
4140 | 867 | 1150 | 17.5 |
The Mechanical Properties of the Materials
Piecewise Linear, Non-linear Plasticity Model for the Materials
Impulse Loading on the Structure
Stress Levels and Scaled Deformation within the Structure after External Blast
Blast from Outside the Cell
Equivalent Stress Levels within the Boundary Conditions and Anchorages after External Blast
Based on the FEA calculation results (Stress, Displacement, etc.) overall swing door structure is investigated with the given design and material information for external blast loading scenario. Some risk is observed especially at the latches connecting the steel door plates and the frame. However, for the material system, the threshold for stress and plastic strain is not exceeded. Measured maximum displacement values also lead to a conclusion that the door system is likely to be operable after blast loading. Under the highlight of the technical analysis the details of which are explained; it is found that the design under consideration can successfully withstand the given impulse and fulfills all requirements designated in the Ministry of Defense Explosives Regulations, JSP 482, Edition 4, January, 2013.