Aluminum foam composite steel plates are used for blast-proof walls in critical facilities (nuclear power plants) to defend against/resist drone attacks

Aluminum Foam composite steel plates typically employ a "sandwich" structure: the upper and lower layers are high-strength steel plates (or armor steel), with aclosed-cell aluminum foam core layer in between.

Energy Absorption (Core Layer): Aluminum foam has extremely high porosity. When a drone impacts or explodes, the aluminum foam undergoes a "plateau stress" stage with a deformation stroke of 50%-70%, converting enormous kinetic energy into plastic deformation energy, sigNificantly attenuating the shock wave pressure transmitted to the rear structure.

Load Dispersion (Upper and Lower Layers): The front steel plate effectively resists localized penetration by drone debris and evenly distributes the point-like impact force across a large area of ​​aluminum foam; the back steel plate ensures the overall integrity of the structure, preventing spalling debris from damaging internal facilities.

Multiple Defense Capabilities: Explosion Resistance: Significantly reduces the peak pressure of blast shock waves, protecting critical components such as the containment vessel of a nuclear power plant.

Bulletproof/Fragmentation Resistant: Effectively intercepts armor-piercing warheads or pre-formed fragments generated by drone explosions.

Applications in Nuclear Power Plants:

Containment Reinforcement Layer: Foamed aluminum composite panels are added to the outside of the existing concrete containment structure as a "sacrificial layer" to absorb the explosive force of the first wave of a suicide drone attack.

Critical Equipment Room Protection: Reinforces doors, windows, and exterior walls of vulnerable and critical areas such as backup diesel generator rooms and control rooms.

Spent Fuel Pool Coverage: Provides lightweight, high-strength top protection against drones that may dive from above.