Calculation Method (Total Areal Weight)

This calculator uses the total areal weight of composite and fiber mass fraction to determine the cured single layer thickness of prepreg. It is widely used in composite production, quality inspection and laminate design.

Core Calculation Formula

Wf = Wt × Wf_mass
Wm = Wt × (1 − Wf_mass)
t (mm) = (Wf / (ρf × 1000)) + (Wm / (ρm × 1000))

Where:
• Wt = Total composite areal weight (g/m²)
• Wf_mass = Fiber mass fraction (0–1)
• ρf = Fiber density (g/cm³)
• ρm = Matrix density (g/cm³)

Enter Parameters

Total Areal Weight Wt (g/m²) Fiber Mass Fraction Wf (0–1) Fiber Density ρf (g/cm³) Matrix Density ρm (g/cm³)

Single Layer Thickness = ?

Typical Industry Example

Standard carbon fiber prepreg: Total AW = 225 g/m², Fiber Mass Fraction = 0.6778, Fiber Density = 1.79 g/cm³, Resin Density = 1.25 g/cm³ → Single layer thickness = 0.143 mm.

Main Applications

Composite laminate thickness design and layup planning
Prepreg quality control and incoming inspection
Mold tooling dimension calculation
Aerospace, automotive, and wind energy composite manufacturing
Fast calculation without fiber volume fraction data

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