3D Printed Tubulanes as Lightweight Hypervelocity Impact Resistant Structures

Autor(es):Mostrar menos -

Sajadi, Seyed Mohammad ^[1] ; Woellner, Cristiano F. ^[2] ; Ramesh, Prathyush ^[1] ; Eichmann, Shannon L. ^[3] ; Sun, Qiushi ^[3] ; Boul, Peter J. ^[3] ; Thaemlitz, Carl J. ^[3] ; Rahman, Muhammad M. ^[1] ; Baughman, Ray H. ^[4] ; Galvao, Douglas S. ^{[5, 6]} ; Tiwary, Chandra Sekhar ^{[1, 7]} ; Ajayan, Pulickel M. ^[1]

Afiliação do(s) autor(es)

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

^[2] Fed Univ Parana UFPR, Phys Dept, BR-81531980 Curitiba, PR - Brazil

^[3] Aramco Res Ctr, Houston, TX 77061 - USA

^[4] Univ Texas Dallas, Alan G MacDiarmid NanoTech Inst, Richardson, TX 75080 - USA

^[5] State Univ Campinas UNICAMP, Appl Phys Dept, BR-13083859 Campinas, SP - Brazil

^[6] State Univ Campinas UNICAMP, Ctr Computat Engn & Sci, BR-13083859 Campinas, SP - Brazil

^[7] Indian Inst Technol, Met & Mat Engn, Kharagpur 721302, W Bengal - India

• Tipo de documento: Artigo Científico
• Fonte: SMALL; v. 15, n. 52 DEC 2019.
• Citações Web of Science: 0

Resumo

Lightweight materials with high ballistic impact resistance and load-bearing capabilities are regarded as a holy grail in materials design. Nature builds these complementary properties into materials using soft organic materials with optimized, complex geometries. Here, the compressive deformation and ballistic impact properties of three different 3D printed polymer structures, named tubulanes, are reported, which are the architectural analogues of cross-linked carbon nanotubes. The results show that macroscopic tubulanes are remarkable high load-bearing, hypervelocity impact-resistant lightweight structures. They exhibit a lamellar deformation mechanism, arising from the tubulane ordered pore structure, manifested across multiple length scales from nano to macro dimensions. This approach of using complex geometries inspired by atomic and nanoscale models to generate macroscale printed structures allows innovative morphological engineering of materials with tunable mechanical responses. (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