Aluminium Honeycomb Panel weight

The weight of an aluminum honeycomb panel can be calculated using the following formula, considering the thickness of the face sheets, core thickness, and core density:

Weight per square meter (kg/m²) = (5.4 × t_face) + (0.001 × t_core × ρ_core)

where:

- t_face = Thickness of each face sheet (mm)

- t_core = Core thickness (mm)

- ρ_core = Core density (kg/m³)

- Aluminum density (ρ_aluminum) = 2700 kg/m³

Example Calculation:

For a panel with:

- Face sheets : 0.5 mm each

- Core thickness : 10 mm

- Core density : 80 kg/m³

Weight/m² = (5.4 × 0.5) + (0.001 × 10 × 80) = 2.7 + 0.8 = 3.5 kg/m² .

Key Factors:

1. Face Sheets : Thicker faces (e.g., 0.3–1.0 mm) increase weight linearly.

2. Core Density : Typically ranges from 30–130 kg/m³ , depending on cell size and foil thickness.

3. Core Thickness : Common values range from 10–50 mm .

Typical Weight Ranges

Notes:

- For core density calculation (if foil thickness t_foil and cell size s are known):

ρ_core ≈ 1.155 × (t_foil / s) × 2700

(where t_foil and s are in the same units, e.g., mm).

- Manufacturers often specify core density directly, simplifying calculations.

This method ensures accurate estimation for applications in aerospace, architecture, and transportation where lightweight strength is critical.