Lightweight rail components: product data
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Lightweight rail components
Lars Rosenbaum
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Copyright: EFW Elbe Flugzeugwerke GmbH, graphic: Heinrich & Hannot GmbH
Performance of EFW's lightweight sandwich components (classic lay-up)
| UNIT | CLASSIC LAY-UP | STANDARD | ||
|---|---|---|---|---|
| Sandwich thickness | mm | 18 | ||
| Specific weight | kg/m² | 6,1 | ||
| Max. plate dimensions | m | 2,90 × 1,88 | ||
| Sandwich bending stiffness | Nmm² | 586 × 106 | EI related to 100 mm width | |
| Max. support distance for L/300 | mm | 550 | ||
Identation | N | 750 | ||
| Climbing Drum Peel | L-direction | N/mm | 1,0 | EN2243-3 |
| W-direction | N/mm | 1,8 | ||
| Fatigue resistance | cycles | 20 Mio. | ||
| MARHE | kW/m² | 5,5 | ISO 5660-1: 25kW/m2 | |
| DS.max | - | 1,3 | EN ISO 5659-2: 25kW/m² | |
| CITG | - | 0,01 | EN ISO 5659-2: 25kW/m² | |
| Burn through | °C | 950 | DIN 4102-8 | |
| Acoustic damping | dB | 27 | DIN EN ISO 140-3 | |
| Media resistance | - | Salt water, Cola, hydraulic fluids | ||
| Impact | Joule | No significant damages up to 6J impact energy | ||
| Service temperature | °C | -35 to 70 | ||
| Insulation | W/(m²K) | 3,89 | ISO 8301 | |
Smart lay-up: competitiveness through composite innovation
Copyright: EFW Elbe Flugzeugwerke GmbH, graphic Heinrich & Hannot GmbH
Performance of EFW‘s lightweight sandwich components (smart lay-up)
| UNIT | SMART LAY-UP | STANDARD | |||
|---|---|---|---|---|---|
| Sandwich thickness | mm | 10.. | 12 | ..30 | |
| Specific weight | kg/m² | 3.. | 7 | ..8 | |
| Max. plate dimensions | m | 2,90 × 1,88 | |||
| Sandwich bending stiffness | Nmm² | 50 × 106 | 158 × 106 | ..2000 × 106 | EI related to100 mm width |
| Max. support distance for L/300 | mm | 200.. | 350 | ..735 | |
| Identation (8 mm diameter) | N | 500.. | 750 | ..1000 | |
| Climbing Drum Peel | N/mm | 1.. | 1,5 | ..2 | EN2243-3 |
| Fatigue resistance | cycles | Up to 20 Mio. | |||
| MARHE | kW/m² | 2.. | 2,3 | ..4 | ISO 5660-1: 25kW/m2 |
| DS.max | - | 1.. | 1,00 | ..3 | EN ISO 5659-2: 25kW/m² |
| CITG | - | 0.. | 0,00 | ..0,05 | EN ISO 5659-2: 25kW/m² |
| Burn through | °C | 950 | |||
| Acoustic damping | dB | 27.. | 30 | ..33 | DIN EN ISO 140-3 |
| Media resistance | - | Salt water, Cola | |||
| Impact | Joule | No significant damages up to 6J impact energy | |||
| Service temperature | °C | -35 to 70 | |||
| Insulation | W/(m²K) | 3.. | 2,49 | ..2 | ISO 8301 |
