Buckling and dynamic responses of 3D printed nanocomposites and their graded variants
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Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
The experimental and numerical investigations are carried out for buckling and vibration of 3D printed functionalized MWCNTs/HDPE based nanocomposite (NC) and their functionally graded nanocomposite (FGNC) variants. P<inf>cr</inf>(critical buckling load) is computed through MBC (modified budiansky criteria) and DTM (double tangent method) techniques. It is observed that P<inf>cr</inf> of the 3D printed NCs and FGNCs increases with the functionalized MWCNTs content. The P<inf>cr</inf> values for the NCs (H0.5-H5) computed using DTM and MBC increased in the range of 16–79%, while for FGNC-1 (H0.5-H1-H3) and FGNC-2 (H1-H3-H5), the P<inf>cr</inf> increased from 54 to 91% compared to HDPE. Further, it is observed that the natural frequency of the NCs and FGNCs increases with the functionalized MWCNTs loading while decreases with rise in compression. The natural frequency of the NCs (H0.5-H5) and FGNCs increased up to 41% than HDPE. The highest P<inf>cr</inf> and the natural frequency is noted for H5 and FGNC-2 prints. The experimental and numerical results showed good agreement. © 2023 Elsevier Ltd
Description
Keywords
3D printing, Beams and girders, Functionally graded materials, Multiwalled carbon nanotubes (MWCN), Nanocomposites, Natural frequencies, Critical buckling loads, Experimental investigations, Free vibration, Functionalized MWCNTs, Functionalized-MWCNT, Functionally graded, MWCNT's, Numerical investigations, Numerical results, Tangent method, Buckling
Citation
Composite Structures, 2023, 316, , pp. -