Buckling behavior of non‐uniformly heated 3D printed plain and functionally graded nanocomposites

Sumodh Kumar; M. R. Ramesh; P. Jeyaraj; Satvasheel Powar; Mrityunjay Doddamani

doi:10.1002/pc.27500

journal article·2023-09

Buckling behavior of non‐uniformly heated 3D printed plain and functionally graded nanocomposites

Sumodh Kumar, M. R. Ramesh, P. Jeyaraj, Satvasheel Powar, Mrityunjay Doddamani

Polymer Composites· Volume 44· Issue 9

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Source abstract

Abstract

Abstract The functionalized multi‐walled carbon nanotubes (MWCNTs) (0.5–5 wt.%) are compounded with high density polyethylene (HDPE), and, subsequently, used for extruding nanocomposite filaments to fabricate nanocomposites (NCs) and functionally graded nanocomposites (FGNCs) through 3D printing. The 3D printed NCs are investigated for coefficient of thermal expansion (CTE), and buckling under different non‐uniform temperature distributions (case‐1: left edge heating, case‐2: centre heating, and case‐3: left and right edge heating). A significant reduction in CTE is observed with MWCNT addition and gradation. The highest reduction in CTE is observed for H5 (5 wt.% of MWCNT in HDPE) NC and H1 ⟶ H3 ⟶ H5 (FGNC‐2) among the NCs and the FGNCs. It is noted that T_cr (critical buckling temperature) is highest for case‐3 and lowest for case‐2. The highest deflection is noticed in case‐2, while no significant difference is observed in case‐1 and case‐3 heating conditions. It is also observed that T_cr increases with gradation and MWCNTs addition. The H5 NC and FGNC‐2 exhibited the highest T_cr among the NCs and FGNCs, respectively. The maximum deflection is noticed for HDPE, whereas the minimum deflection is noticed for FGNC‐2 and H‐5 NC among the tested samples. The results also revealed that T_cr is very sensitive to type of heating.

Source: crossref · Quality: baseline

Research context

Nanomaterials Materials processing

OpenAlex topics: Additive Manufacturing and 3D Printing Technologies · Carbon Nanotubes in Composites · Advanced Materials and Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Mechanical Engineering National Institute of Technology Karnataka Surathkal India

School of Mechanical and Materials Engineering Indian Institute of Technology Mandi Mandi Himachal Pradesh India

School of Technology and Business Studies Energy Technology, Högskolan Dalarna Falun Sweden

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