additive manufacturing

Array of diverse truss metamaterial unit cells with overlays of stiffness and Poisson’s ratio maps.

Mining Extreme Properties from 1.8 Million Truss Metamaterials — A Plain-English + Deep-Tech Guide

Engineers just mapped a huge new frontier in metamaterials. By encoding unit-cell architectures as graphs and tiling them with crystallography, researchers auto-generated 1.8 million truss designs and computed their effective elastic properties. The payoff is big: near-Voigt stiffness, Poisson’s ratios spanning extremely negative to very positive, and even isotropic bi-mode lattices that behave like liquids. Better yet, the team discovered mechanical isomerism, where tiny architectural tweaks transform properties by orders of magnitude—turning a routine lattice into a best-in-class design. This database doesn’t just predict performance; it closes long-standing “gaps” in stiffness and ν, enabling inverse design for aerospace panels, medical implants, acoustic cloaks, soft robots, and more. If you’ve wanted a tool that lets you ask for behavior and receive architectures that deliver it, this is the moment.

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Sustainable 3D printer reinforcing weak zones with eco-friendly and strong plastics.

A Greener Way to 3D Print Stronger Stuff

MIT CSAIL’s SustainaPrint blends eco-friendly and strong plastics, reinforcing only where needed. The result: greener 3D prints with up to 70% of the strength of high-performance plastic while cutting waste.

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Researchers using wire arc additive manufacturing to weld steel plates in a high-tech lab.

Forging the Future: UT’s $5M Grant to Revolutionize Military Steel

The University of Tennessee, Knoxville, has secured a $5 million grant from the Office of Naval Research. Over the next three years, UT and Mississippi State University researchers will develop cutting-edge, domestically produced military-grade steels using wire arc additive manufacturing and advanced welding. Collaboration with Oak Ridge National Lab and a Navy lab in Memphis ensures scalable innovation—a major step toward revitalizing U.S. steel manufacturing and bolstering national security.

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