Model multi material blends with optional porosity corrections. See density, shares, and export tools instantly. Clear outputs support faster formulation checks across technical settings.
Use consistent units across all components. Leave unused component cards empty.
| Component | Mass (g) | Density (g/cm³) | Solid Volume (cm³) | Mass Fraction (%) | Volume Fraction (%) |
|---|---|---|---|---|---|
| Carbon Fiber | 120.00 | 1.75 | 68.5714 | 60.00 | 53.71 |
| Epoxy Resin | 60.00 | 1.20 | 50.0000 | 30.00 | 39.17 |
| Silica Filler | 20.00 | 2.20 | 9.0909 | 10.00 | 7.12 |
For this blend, total mass is 200 g, theoretical density is about 1.5666 g/cm³, and void-adjusted density is about 1.5196 g/cm³ at 3% voids.
1. Component solid volume: Vᵢ = mᵢ / ρᵢ
2. Total mass: M = Σmᵢ
3. Total solid volume: Vₛ = ΣVᵢ
4. Theoretical composite density: ρₜ = M / Vₛ
5. Final volume with voids: Vf = Vₛ / (1 - φ)
6. Void-adjusted density: ρa = M / Vf = ρₜ(1 - φ), where φ is the void fraction.
Mass fraction equals component mass divided by total mass. Volume fraction equals component solid volume divided by total solid volume. The calculator assumes all entered densities are true constituent densities and that the void percentage belongs to the final composite volume.
Composite density is the overall density of a blend made from multiple materials. It connects total mixture mass to the total occupied volume after combining the constituents and, when needed, the void space.
Theoretical density assumes a perfectly consolidated blend with no trapped air. Void-adjusted density lowers that value by accounting for porosity in the final composite volume.
No. Use one consistent unit system for every component in the same calculation. Mixing incompatible units changes the mass-to-volume relationship and gives incorrect density results.
The tool first computes the solid-only mixture volume. It then expands the final volume using your void percentage and recalculates the effective composite density from total mass divided by final volume.
High-density materials contribute more mass per unit volume. Low-density materials can occupy large volume while contributing modest mass. That is why the two fraction sets often differ.
Yes. Unused cards may stay blank. Only components with both positive mass and positive density are included in the total mass, total volume, and fraction calculations.
It suits polymer blends, filled resins, ceramic bodies, powder mixes, metal matrix systems, composite laminates, and slurry formulations whenever constituent mass and density are known.
Pick a convenient basis, such as 100 cm³ or 1 m³, convert each volume share into mass using density, and then enter those masses and densities here.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.