High Specific Energy Absorption Flame Retardant Aluminum Honeycomb Core For Under Water Marine Use

High Specific Energy Absorption Flame Retardant Aluminum Honeycomb Core For Under Water Marine Use

 
Pasia Industries, as a leading manufacturer of honeycomb energy absorbers, specialize in producing high-performance aluminum honeycomb cores that convert kinetic energy into controlled, predictable crushing forces.

Our High Specific Energy Absorption Flame Retardant Aluminum Honeycomb Core is a specialized structural material developed for critical underwater marine environments where weight reduction, fire safety, and impact resistance are paramount. Featuring a strain-hardened hexagonal cell architecture, this core material delivers exceptional mechanical performance while maintaining minimal density—offering superior strength-to-weight ratios compared to conventional foam cores or other core types .

Key Features & Benefits

Feature Benefit for Marine Applications

High Specific Energy Absorption (SEA) Superior crashworthiness and impact force attenuation, crucial for protection against underwater debris and collisions
Flame Retardant / Non-Combustible Meets IMO Res.A.653(16) Surface Spread of Flame and ISO 1182 non-combustibility requirements
Corrosion Resistant 5000 series aluminum alloy construction meets MIL-C-7438 / AMS-C-7438 salt fog anti-corrosion specifications
Low Weight Significantly reduces vessel weight, improving fuel efficiency and payload capacity
High Stiffness Maintains structural integrity under shear loads and out-of-plane compression
Moisture Resistant Zero moisture absorption—ideal for submerged or high-humidity marine conditions

Applications

Primary Marine Applications:

· Submarine interiors and structural components
· Underwater vessel bulkheads (C-Class)
· Internal modules (galleys, sanitary facilities)
· Wall linings and partitions
· Hatch covers and flooring systems
· Marine cabinetry and furniture
· Ceilings and doors
· Offshore platform decks and scaffolding

Our energy absorbers deliver:

· Consistent crush strength tolerance within ±10% of rated value

· Crush stroke exceeding 70% of part thickness before densification

· Minimal rebound – virtually all impact energy converted to deformation, not returned to the system

· Elimination of peak loading via pre-crush option (static triggering)

Calibration Application Context

The neck extension/flexion test requires a precisely characterized deceleration pulse. As specified in ASTM F3016-14, the impactor nose must have zero stored energy before impact and no elastic rebound after impact . Aluminum honeycomb uniquely satisfies this requirement, providing a "crush and stop" behavior that foam or spring-based systems cannot replicate .

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Flame Resistance – Safety Without Compromise

This product incorporates flame-resistant treatment or alloy selection appropriate for testing environments where:

· Aerospace cabin safety standards apply (FAA burn test requirements)

· Automotive test labs require fire-safe materials

· Defense and military testing protocols mandate flame retardancy

The flame-resistant properties do not compromise the predictable crush mechanics – the core retains its certified crush strength and deformation characteristics while meeting applicable fire safety classifications.

 
 
Specifications:
 
Pasia Honeycomb Energy Absorbers can be supplied based on the cell size, foil thickness and layer, aluminum grade, width and length etc. The shape and parts can be also customized as per the request from client. The crush strength can be achieved on the performance of the foil thickness and special structure.

 
Testing Item: Aluminum Honeycomb Plain Crushing Strength
 
Testing Data
 

Testing Curve: