Multiscale Geometric Design Principles Applied to 3D Printed Schwarzites

Autor(es)

Sajadi, Seyed Mohammad ^[1] ; Owuor, Peter Samora ^[1] ; Schara, Steven ^[1] ; Woellner, Cristiano F. ^[2] ; Rodrigues, Varlei ^[2] ; Vajtai, Robert ^[1] ; Lou, Jun ^[1] ; Galvao, Douglas S. ^[2] ; Tiwary, Chandra Sekhar ^[1] ; Ajayan, Pulickel M. ^[1]

Afiliação do(s) autor(es)

^[1] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 - USA

^[2] Univ Estadual Campinas, UNICAMP, Appl Phys Dept, BR-13083859 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Advanced Materials; v. 30, n. 1 JAN 4 2018.
• Citações Web of Science: 10

Resumo

Schwartzites are 3D porous solids with periodic minimal surfaces having negative Gaussian curvatures and can possess unusual mechanical and electronic properties. The mechanical behavior of primitive and gyroid schwartzite structures across different length scales is investigated after these geometries are 3D printed at centimeter length scales based on molecular models. Molecular dynamics and finite elements simulations are used to gain further understanding on responses of these complex solids under compressive loads and kinetic impact experiments. The results show that these structures hold great promise as high load bearing and impact-resistant materials due to a unique layered deformation mechanism that emerges in these architectures during loading. Easily scalable techniques such as 3D printing can be used for exploring mechanical behavior of various predicted complex geometrical shapes to build innovative engineered materials with tunable properties. (AU)

• Processo FAPESP: 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais
• Beneficiário: Munir Salomao Skaf
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 16/12340-9 - Propriedades Estruturais e Mecânicas de Espumas Baseadas no Carbono
• Beneficiário: Cristiano Francisco Woellner
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado