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Metamaterials mapped lightweight structures by principal stress lines and topology optimization: Methodology, additive manufacturing, ductile failure and tests

Qingyuan Liu,Rongwei Xu,Yang Zhou,Jinguo Ge,Shuai Yuan,Yuhong Long,Tielin Shi

Materials & Design（2021）

Cited 12|Views2
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Abstract
•A method of metamaterials mapped multiscale lightweight structures is presented.•Metamaterials, ribbons, and solid materials are arranged according to PSLs and stress.•Plate- and truss-based metamaterials mapped lightweight structures are fabricated by SLM.•Ductile fracture process is investigated numerically and experimentally.
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Key words
Metamaterials,Selective laser melting,Mapping strategy,Topology optimization,Principal stress lines
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