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Latest News

Honeycomb technology based packaging sets new performance standard Container box compression test comparing alternative solutions

[view details]13-09-2018

Honeycomb materials delivering performance and growth in packaging EconCore actively licenses its technology for the continuous production of thermoplastic honeycomb core materials, to companies around the world in various industry sectors.

[view details]23-07-2018

Innovative honeycomb materials are lightening the load in transportation EconCore has established a reputation as a leader in thermoplastic honeycomb core materials and technology.

[view details]20-07-2018

EconCore: Core Technologies for Future Needs EconCore, the world leader in providing technologies for honeycomb sandwich material production, has seen its growth skyrocket since its establishment 13 years ago, demonstrating its ability to offer the right product at the right time.

[view details]15-06-2018

EconCore partners with MEAF in development of lab extruder for continuous thermoplastic honeycomb production EconCore is making strong progress in development of new all-thermoplastics continuous honeycomb cores.

[view details]07-06-2018

Task-distribution

Technology_SandwichTechnology
The task of the core
In lightweight sandwich constructions the core is usually relatively thick and has a much lower density compared to the skins. The primary mechanical requirement for the core layer is to prevent the movement of the skins relative to each other (in-plane and out-of-plane). Sufficient out-of-plane compression properties of the sandwich core are required to support the skins to maintain their distance from the neutral axis, to prevent them from buckling and to restrict their deformations due to local out-of-plane loads. Furthermore, sufficient out-of-plane shear properties of the core are demanded to restrict in-plane displacement of the skins relative to each other due to bending moments and transverse loads. The core layer can furthermore have additional functions e.g. thermal and acoustic isolation or energy absorption during impact.

The task of the skins
The skin layers in sandwich constructions carry the in-plane tensile/compression stresses and in-plane shear stresses. They are usually relatively thin and have a high stiffness and strength. In addition to high mechanical in-plane properties per weight the skin material usually has to fulfill also other requirements like low costs, high surface quality and good impact performance.



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