Instead of relying on the adhesion where materials meet, To\u2019s group has developed a novel process that harnesses the inherent strength of each material. They are using advanced computational design that focuses on the topology, or the way geometric objects function as they are transformed, to develop structures that lock together, no matter how incompatible their surfaces.\u00a0<\/p>\n
\u201cWe want to make a handshake between two materials,\u201d To said. \u201cThe materials will lock into each other geometrically, so when you try to pull them apart, the joint remains firm.\u201d<\/p>\n
These structures are fabricated using additive manufacturing, or 3D printing, ensuring rapid and custom production.<\/p>\n
\u201cOur computer simulations show that optimized interlocking interfaces can double the strength at the point of connection relative to human-designed baselines,\u201d said Myung Kyun Sung, a postdoctoral associate in mechanical engineering at the Swanson School, who has helped To research this new technology. \u201cWe found a significant increase in effective stiffness and tensile strength.\u201d<\/p>\n
Ultimately, the research could expand the types of materials that can be connected, opening a range of design possibilities across industries.<\/p>\n
\u201cThis project seeks to transform how we join materials,\u201d To said. \u201cBy making it easier and less expensive to join different surfaces, we can develop everything from stronger aerospace structures to more advanced medical devices.\u201d<\/p>\n
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