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Ultrastiff metamaterials generated through a multilayer strategy and topology optimization.
Liu, Yang; Wang, Yongzhen; Ren, Hongyuan; Meng, Zhiqiang; Chen, Xueqian; Li, Zuyu; Wang, Liwei; Chen, Wei; Wang, Yifan; Du, Jianbin.
Afiliación
  • Liu Y; School of Aerospace Engineering, Tsinghua University, Beijing, PR China.
  • Wang Y; School of Mechanical & Aerospace Engineering, Nanyang Technological University, Singapore, Singapore.
  • Ren H; School of Aerospace Engineering, Tsinghua University, Beijing, PR China.
  • Meng Z; School of Aerospace Engineering, Tsinghua University, Beijing, PR China.
  • Chen X; School of Mechanical & Aerospace Engineering, Nanyang Technological University, Singapore, Singapore.
  • Li Z; School of Aerospace Engineering, Tsinghua University, Beijing, PR China.
  • Wang L; School of Automation, Guangdong University of Petrochemical Technology, Maoming, China. lizuyu@gdupt.edu.cn.
  • Chen W; School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Ultimo, New South Wales, Australia. lizuyu@gdupt.edu.cn.
  • Wang Y; Department of Mechanical Engineering, Northwestern University, Evanston, Illinois, USA.
  • Du J; Department of Mechanical Engineering, Northwestern University, Evanston, Illinois, USA.
Nat Commun ; 15(1): 2984, 2024 Apr 06.
Article en En | MEDLINE | ID: mdl-38582903
ABSTRACT
Metamaterials composed of different geometrical primitives have different properties. Corresponding to the fundamental geometrical forms of line, plane, and surface, beam-, plate-, and shell-based lattice metamaterials enjoy many advantages in many aspects, respectively. To fully exploit the advantages of each structural archetype, we propose a multilayer strategy and topology optimization technique to design lattice metamaterial in this study. Under the frame of the multilayer strategy, the design space is enlarged and diversified, and the design freedom is increased. Topology optimization is applied to explore better designs in the larger and diverse design space. Beam-plate-shell-combined metamaterials automatically emerge from the optimization to achieve ultrahigh stiffness. Benefiting from high stiffness, energy absorption performances of optimized results also demonstrate substantial improvements under large geometrical deformation. The multilayer strategy and topology optimization can also bring a series of tunable dimensions for lattice design, which helps achieve desired mechanical properties, such as isotropic elasticity and functionally grading material property, and superior performances in acoustic tuning, electrostatic shielding, and fluid field tuning. We envision that a broad array of synthetic and composite metamaterials with unprecedented performance can be designed with the multilayer strategy and topology optimization.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido