Lightweight rail components: product data

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Lightweight rail components
Lars Rosenbaum
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EFW Classic lay-up
Classic sandwich panel lay-up
Copyright: EFW Elbe Flugzeugwerke GmbH, graphic: Heinrich & Hannot GmbH

Performance of EFW's lightweight sandwich components (classic lay-up)

UNITCLASSIC LAY-UPSTANDARD
Sandwich thicknessmm18
Specific weightkg/m²6,1
Max. plate dimensionsm2,90 × 1,88
Sandwich bending
stiffness
Nmm²586 × 106EI related to 100 mm width
Max. support distance
for L/300
mm550

Identation
(8 mm diameter)

N750
Climbing
Drum Peel
L-directionN/mm1,0 EN2243-3
W-directionN/mm1,8
Fatigue resistancecycles20 Mio.
MARHEkW/m²5,5ISO 5660-1: 25kW/m2
DS.max-1,3EN ISO 5659-2: 25kW/m²
CITG-0,01EN ISO 5659-2: 25kW/m²
Burn through°C950DIN 4102-8
Acoustic dampingdB27DIN EN ISO 140-3
Media resistance-Salt water, Cola,
hydraulic fluids
ImpactJouleNo significant
damages up to 6J
impact energy
Service temperature°C-35 to 70
InsulationW/(m²K)3,89ISO 8301

Smart lay-up: competitiveness through composite innovation

EFW Smart lay-up
Smart sandwich panel lay-up
Copyright: EFW Elbe Flugzeugwerke GmbH, graphic Heinrich & Hannot GmbH

Performance of EFW‘s lightweight sandwich components (smart lay-up)

UNITSMART LAY-UPSTANDARD
Sandwich thicknessmm10..12..30
Specific weightkg/m²3..7..8
Max. plate dimensionsm2,90 × 1,88
Sandwich bending stiffnessNmm²50 × 106158 × 106..2000 × 106EI related to100 mm width
Max. support distance for L/300mm200..350..735
Identation (8 mm diameter)N500..750..1000
Climbing Drum PeelN/mm1..1,5..2EN2243-3
Fatigue resistancecyclesUp to 20 Mio.
MARHEkW/m²2..2,3..4ISO 5660-1: 25kW/m2
DS.max-1..1,00..3EN ISO 5659-2: 25kW/m²
CITG-0..0,00..0,05EN ISO 5659-2: 25kW/m²
Burn through°C950
Acoustic dampingdB27..30..33DIN EN ISO 140-3
Media resistance-Salt water, Cola
ImpactJouleNo significant damages up to 6J
impact energy
Service temperature°C-35 to 70
InsulationW/(m²K)3..2,49..2ISO 8301
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