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Latest News

EconCore to highlight lightweight honeycomb production technology for transportation at TMC19 EconCore will be exhibiting at TMC19 in Atlanta, Georgia, USA from 18th-21st March.

[view details]19-03-2019

EconCore to showcase new high-performance honeycomb technology at JEC World 2019 in Paris New material for aircraft and railway interior components

[view details]19-02-2019

Steel composite panels from Tata cut trailer weight by 22% Tesco is trialling eight demonstrator trailers as part of a project, funded by Innovate UK, to test prototype units which are 22% lighter than conventional double-deckers.

[view details]12-02-2019

Covestro and EconCore join forces in composites development Polycarbonate applications in mass transportation - Fire, smoke and toxicity (FST)-performing honeycomb cores and panels

[view details]30-01-2019

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

[view details]13-09-2018

Sandwich Technology

Today, the exploitation of the economical advantages of weight reduction has become essential for many industries. 

It is well known that the task distribution in sandwich construction enables high stiffness and strength for lightweight panels and parts. Sandwich construction with low cost core materials can not only be more lightweight but also more cost effective, especially because the advancement and automation of production processes results in a reduction of the production cost for lightweight sandwich panels.

The combination of materials to utilize their favorable properties is the basic idea of composites engineering. With a monolithic material, a thickness increase leads to an increase of both weight and material cost of a panel. 

Sandwich constructions use the fact that the core of a panel that is loaded in bending does not carry much in-plane stresses and does not represent the surface of the panel. The core can thus be made from a different, more lightweight and/or less expensive material. Sandwich construction takes the different demands on the central layer (core) and surface layers (skins) into account

The selection and optimisation of the different material layers according to their demands enables to improve the weight and/or cost specific properties of the construction. The potential economic advantage of low cost core materials is as big as the potential weight saving due to low density core materials.

The support of the skins (to prevent relative displacements of the skins out-of-plane and in-plane) is the main task of every sandwich core material, thus a classification should be made based on how this task is fulfilled by the different core materials. Honeycombs are used in aerospace industries since many decades as the preferred core material for very light and strong sandwich panels and structures. From all sandwich core materials honeycombs enable the best mechanical performance per weight, thus they offer the largest potential for material cost savings.

econcore
Principle components in sandwich construction and task distribution between core and skins

econcore
Effect of sandwich construction on weight and material cost and the economic advantage of low cost cores

econcore
Sandwich core material classification and comparison