HANNOVER MESSE 2020, 20 - 24 April
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Biologically inspired lightweight design using additive manufacturing of composite parts

Reinforcement of load paths enables resource efficient lightweight structures

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Additive manufacturing by 3D-printing is an established process in many industrial sectors. However, additively manufactured parts are usually not able to bear high mechanical loads. The potentials of using oriented reinforcements, a design principle used by nature in load-bearing biological systems, have hardly been accessed yet. At the Chair of Composite Engineering at Technische Universität Kaiserslautern, the manufacturing of load-bearing elements inspired by biological design principles using extrusion-based 3D-printing is being researched. Plastic materials are reinforced with nano-sized cellulose and micron-sized fibers and are then deposited in strands following the main load paths. The part is built up in the net-shape, without waste. This way, structures with high load-bearing capability and low weight can be manufactured efficiently in regard to both energy and material.


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