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Latest News

Global summit for users of EconCore´s lightweight ThermHex honeycomb core technology EconCore, world leader in lightweight thermoplastic honeycomb core technology, hosted their fourth technology summit in Leuven, Belgium at the end of last month.

[view details]26-11-2019

Composite-Sandwich Conference 2020 Save the date!

[view details]05-11-2019

EconCore showcases advanced honeycomb technology at JEC Asia 2019 World leader in technologies for economic honeycomb sandwich material production, EconCore, will be exhibiting at JEC Asia 2019 in Seoul, Korea on 13 – 15 November.

[view details]05-11-2019

From Organosandwich to component For the first time, several prototypes of an Organosandwich component will be displayed at the K trade fair in Düsseldorf.

[view details]08-10-2019

EconCore chooses MEAF 50-H34 extruder for R-PET honeycomb sandwich panels EconCore from Leuven (Louvain) in Belgium has chosen the high speed, energy efficient MEAF 50-H34 extruder for its trial production of recycled PET (R-PET) ThermHex honeycomb sandwich panels.

[view details]29-08-2019

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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