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Carbon fibre flat sheet and sandwich sheet data
Bend, stifness and deflection data for carbon fibre flat sheet and carbon sandwich sheet
Data is based on idealised data, sheet materials may perform differently as they are hand made products so a level of variation is to be expected.
All sheets with cores feature two 0.25mm 199gsm T300 carbon epoxy 42% resin weight pre-preg 2*2 twill skins making approx 0.50mm skins (unless otherwise stated)
Reverie carbon and sandwich sheet deflection / bend calculator
Download Document :: Deflection calculator
Core Types
Simple support
Data in the folowing tables is based upon ideaised data using a simple support at each end of the sample sheet. Sample sheet size 1m²
Load deflection comparison table | |||||
| Material | Mass load (kg) | Lay up density (g/cm³) | Bending stiffness, D (N/m²) | Bending deflection (mm) | Sample weight (kg) |
| Airex Core 2mm 1m² | 25 | 0.52 | 62.5 | 81.7 | 1.521 |
| Airex Core 3mm 1m² | 25 | 0.40 | 122.5 | 41.7 | 1.581 |
| Airex Core 5mm 1m² | 25 | 0.30 | 302.5 | 16.9 | 1.801 |
| Airex Core 8mm 1m² | 25 | 0.23 | 722.5 | 7.1 | 2.041 |
| Airex Core 10mm 1m² | 25 | 0.20 | 1102.5 | 4.6 | 2.201 |
| Airex Core 15mm 1m² | 25 | 0.16 | 2402.5 | 2.1 | 2.601 |
| Nomex Core 3mm 1m² | 25 | 0.39 | 122.5 | 41.7 | 1.545 |
| Nomex Core 5mm 1m² | 25 | 0.28 | 302.5 | 16.9 | 1.641 |
| Nomex Core 9mm 1m² | 25 | 0.18 | 902.5 | 5.7 | 1.833 |
| Aluminium Core 4mm 1m² | 25 | 0.41 | 202.5 | 25.2 | 2.194 |
| Aluminium Core 6.35mm 1m² | 25 | 0.31 | 469.2 | 10.9 | 2.415 |
| Aluminium Core 12mm 1m² | 25 | 0.22 | 1532.5 | 3.3 | 2.995 |
Note: These bend stiffness and deflections calculated are theoretical and using a simply supported beam with central point load distributed evenly across the width of the beam. | |||||
| Maxium load deflection table | |||||
| Material | Mass load (kg) | Lay up density (g/cm³) | Bending stiffness, D (N/m²) | Bending deflection (mm) | Sample weight (kg) |
| | |||||
| Airex Core 2mm 1m² | 204 | 0.52 | 62.5 | 667.1 | 1.521 |
| Airex Core 3mm 1m² | 285 | 0.40 | 122.5 | 475.5 | 1.581 |
| Airex Core 5mm 1m² | 449 | 0.30 | 302.5 | 303.4 | 1.801 |
| Airex Core 8mm 1m² | 693 | 0.23 | 722.5 | 196.0 | 2.041 |
| Airex Core 10mm 1m² | 856 | 0.20 | 1102.5 | 158.7 | 2.201 |
| Airex Core 15mm 1m² | 1264 | 0.16 | 2402.5 | 107.5 | 2.601 |
| Nomex Core 3mm 1m² | 85 | 0.39 | 122.5 | 141.8 | 1.545 |
| Nomex Core 5mm 1m² | 449 | 0.28 | 302.5 | 303.4 | 1.641 |
| Nomex Core 9mm 1m² | 775 | 0.18 | 902.5 | 175.5 | 1.833 |
| Aluminium Core 4mm 1m² | 367 | 0.41 | 202.5 | 370.4 | 2.194 |
| Aluminium Core 6.35mm 1m² | 559 | 0.31 | 649.2 | 243.5 | 2.415 |
| Aluminium Core 12mm 1m² | 1019 | 0.22 | 1532.5 | 133.3 | 2.995 |
| Note: These bend stiffness and deflections calculated are theoretical and using a simply supported beam with central point load distributed evenly across the width of the beam. | |||||
| Maxium load comparison table (uses mass load of 25kg on all samples) | ||||||
| Material | Skin Ef modulus (Gpa) | Lay up density (g/cm³) | Maximum bending moment (N/m) | Maximum Load (N) | Maximum load (kg) | Sample weight (kg) |
| | | | | | | |
| Airex Core 2mm 1m² | 40 | 0.52 | 500 | 2000 | 204 | 1.521 |
| Airex Core 3mm 1m² | 40 | 0.40 | 700 | 2800 | 285 | 1.581 |
| Airex Core 5mm 1m² | 40 | 0.30 | 1100 | 4400 | 449 | 1.801 |
| Airex Core 8mm 1m² | 40 | 0.23 | 1700 | 6800 | 693 | 2.041 |
| Airex Core 10mm 1m² | 40 | 0.20 | 2100 | 8400 | 856 | 2.201 |
| Airex Core 15mm 1m² | 40 | 0.16 | 3100 | 12400 | 1264 | 2.601 |
| Nomex Core 3mm 1m² | 40 | 0.39 | 700 | 2800 | 285 | 1.545 |
| Nomex Core 5mm 1m² | 40 | 0.28 | 1100 | 4400 | 449 | 1.641 |
| Nomex Core 9mm 1m² | 40 | 0.18 | 1900 | 7600 | 775 | 1.833 |
| Aluminium Core 4mm 1m² | 40 | 0.41 | 900 | 3600 | 367 | 2.164 |
| Aluminium Core 6.35mm 1m² | 40 | 0.31 | 1370 | 5480 | 559 | 2.415 |
| Aluminium Core 12mm 1m² | 40 | 0.22 | 2500 | 10000 | 1019 | 2.995 |
| Note: These bend stiffness and deflections calculated are theoretical and using a simply supported beam with central point load distributed evenly across the width of the beam. | ||||||
Cantilever support
Data below shows idealised data for carbon sandwich sheet when fixed at one end
| Carbon sheet deflection comparison table (cantilever beam) | ||||||
| Material | Material thickness (mm) | Lay up density (g/cm³) | Mass Load (kg) | Bend stiffness (N/m²) | Bend Deflection (m) | Weight kg/m² |
| | | | | | | |
| Carbon sheet 0.3mm 1m² | 0.30 | 1.52 | 0.01 | 0.090 | 0.363 | 0.362 |
| Carbon sheet 0.55mm 1m² | 0.55 | 1.52 | 0.05 | 0.555 | 0.295 | 0.724 |
| Carbon sheet 0.80mm 1m² | 0.80 | 1.52 | 0.05 | 1.707 | 0.096 | 1.086 |
| Carbon sheet 1.00mm 1m² | 1.00 | 1.54 | 0.05 | 3.333 | 0.049 | 1.388 |
| Carbon sheet 1.46mm 1m² | 1.46 | 1.54 | 0.05 | 10.374 | 0.016 | 2.252 |
| Carbon sheet 1.80mm 1m² | 1.80 | 1.54 | 0.05 | 19.440 | 0.008 | 2.779 |
| Carbon sheet 3.00mm 1m² | 3.00 | 1.54 | 0.05 | 90.000 | 0.002 | 4.579 |
| Note: These bend stiffness and deflections calculated are theoretical and using a simply supported beam with central point load distributed evenly across the width of the beam. | ||||||
- Download Document :: Deflection calculator
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