Case Study IV (Introduction)

Hybrid Sandwich composite

Preparation of metallicHoneycomb Sandwich structure

Mechanical Thermal Protection System(for Skin)

(For a hypersonic aircraft - 5 Mach Number)

Requirement : To withstand surface temperature of 1100oC

Ceramic wool of thickness 40mm

Facing sheet – Ni alloy of 0.08 -.1mm

Core - Ni alloy of 4mm cell size honeycomb structure

Facing sheet – Ti alloy of 0.3 -.4mm

Core - Ti alloy of 4mm cell size honeycomb structure

Applications

Metal Engine - Composite

All composite – Pegasus structure

All composite – Pegasus skin

All Composite Tailpipe Weighs

Only 15 Kgs.

B2 Stealth bomber

B2 Stealth bomber

Panels manufactured by Chempharm , India

Sheet thickness : 0.5 mm to 0.8 mm

machines in India with following Specification

Size: Sandwich / Composite 1.2 m widths x 6.2 m LengthMaterial of construction: / SS 304 / SS 316Overall thickness of the panel : 50 mm to 200 mmFilling Material : PUF / Mineral wool / Honey comb paper / EPS

Application / Usage:

Clean Room for Pharmaceutical and Electronic industriesOffice Partitions for Industry High bay Warehouses, Storage facilitiesCold storages /Cold rooms and CA systemsRoof structure for Industrial Shed

Conclusion

• Classification composites

• Design parameters of Sandwich composite

• Case studies

1.3 D spacer Fabric

2. Honeycomb sandwich composite

3. Metallic Foam Sandwich Composite

4 Hybrid Sandwich composite

• Applications