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The stiffest porous lightweight materials ever

The stiffest porous lightweight materials ever

Written by David

December 13, 2018

IMAGE: Plate-lattices will be the design of choice for future lightweight porous materials. view more Credit: ETH Zurich / Marc Day 3D printing and other additive production techniques make it possible to manufacture materials with internal structures of previously unimaginable complexity. This is interesting for lightweight construction, too, as it enables the development of materials that have the highest possible share of interior voids (to make the materials as light as possible) but are simultaneously as robust as possible. Achieving this requires that the internal structures be intelligently organised for maximum efficiency. A research team from ETH Zurich and MIT led by Dirk Mohr, Professor of Computational Modeling of Materials in Manufacturing, has developed and fabricated material architectures that are equally strong in all three dimensions, and that are simultaneously extremely stiff. It is possible to determine mathematically just how stiff materials with internal voids can theoretically become; Mohr’s […]

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