Multi-Layer Rotor Containment Structure for Blade Fragment Absorption

The containment structure is divided into multiple discrete layers (typically 3-5 layers) of corrugated metal sheets, each layer capable of independently absorbing kinetic energy through deformation. This segmentation allows the structure to handle higher energy impacts while maintaining manageable complexity through standardized layer design and spacing.

The containment structure transitions from a single-layer two-dimensional barrier to a multi-layer three-dimensional configuration with controlled spacing between layers. This dimensional expansion creates a progressive deformation zone that increases the path length and energy absorption capacity while distributing the structural complexity across multiple simplified repeating elements.

The containment structure uses corrugated metal sheets with specific local geometric properties (wave depth, wavelength, thickness) that optimize the balance between rapid fragment containment and thermal resistance. The corrugation geometry provides high strength-to-weight ratio and thermal barrier properties, allowing the structure to be positioned optimally close to the rotor without suffering thermal damage.

The containment structure parameters (layer spacing, sheet thickness, corrugation geometry) are optimized to achieve the desired response speed while maintaining thermal integrity. By adjusting these parameters, the structure can be positioned at an optimal distance that provides rapid fragment containment without exposing the metal sheets to temperatures that would cause thermal damage.