Effect of unit cell shape and structure volume fraction on the mechanical and vibration properties of 3D printed lattice structures

Singh, Gurminder; Singh, Jasvinder; Singh, Narinder; Farina, Ilenia; Colangelo, Francesco; Pandey, Pulak Mohan

doi:10.1177/08927057231203156

Cited by 4 publications

(1 citation statement)

References 37 publications

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“…Ibrahim et al [4] analyzed the variations in the conductivity of a nylon matrix sample, with different layer configurations and fiber directions, obtaining the maximum conductivity with fibers in the direction of heat flow and reaching a conductivity 11 times higher than that of the base material. Likewise, lattice structures have been proven to be one of the best choices ever since their inception, for various structural and other commercial applications, due to their enhanced mechanical properties, especially in the case of vibration isolation, where band gaps play a vital role [9].…”

Section: Introductionmentioning

confidence: 99%

Experimental Measurement of the Thermal Conductivity of Fused Deposition Modeling Materials with a DTC-25 Conductivity Meter

Rodriguez,

Fuertes,

Oval

et al. 2023

Materials

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The expansion and low cost of additive manufacturing technologies have led to a revolution in the development of materials used by these technologies. There are several varieties of materials that can be used in additive manufacturing by fused deposition modeling (FDM). However, some of the properties of these materials are unknown or confusing. This article addresses the need to know the thermal conductivity in different filaments that this FDM technology uses, because there are multiple applications for these additive manufacturing products in the field of thermal insulation. For the study of thermal conductivity, the DTC-25 commercial conductivity measurement bench was used, where the tests were carried out on a set of seven different materials with 100% fabrication density—from base materials such as acrylonitrile butadiene styrene (ABS) or polylactic acid (PLA), to materials with high mechanical and thermal resistance such as thermoplastic polyurethane (TPU), polyether ether ketone (PEEK), and high-performance polyetherimide thermoplastic (ULTEM), to materials with metal inclusions (aluminum 6061) that would later be subjected to thermal after-treatments. This study shows how the parts manufactured with aluminum inclusions have a higher thermal conductivity, at 0.40 ± 0.05 W/m·K, compared to other materials with high mechanical and thermal resistance, such as TPU, with a conductivity of 0.26 ± 0.05 W/m·K.

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Section: Introductionmentioning

confidence: 99%

Experimental Measurement of the Thermal Conductivity of Fused Deposition Modeling Materials with a DTC-25 Conductivity Meter

Rodriguez,

Fuertes,

Oval

et al. 2023

Materials

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Finite Element Analysis of Warping and Mechanical Properties of 3D Parts Printed by Fused Deposition Modeling

Yu,

Chen,

Sun

et al. 2024

J. of Materi Eng and Perform

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Behavior of sandwich structures with 3D-printed auxetic and non-auxetic cores under low velocity impact: Experimental and computational analysis

Allouch,

Mellouli,

Mallek

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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In recent years, impact-resistant structures are highly sought after in various fields such automotive and aerospace applications as they proved notable performances, garnering significant success. The aim of this study is to assess the behavior of the 3D-printable honeycombs subjected to low velocity impact, for providing insights into absorbed energy for different core designs: hexagonal, auxetic, and rectangular, considering an equal number of cells across all designs. This work reports the computational and experimental studies conducted for sandwich structures under different impact loading. The experimental impact tests are carried out using a drop weight impact-testing machine. The examined specimen comprises two face-sheets and architected cell core fabricated through the Fused Filament Fabrication (FFF) process made of polylactic acid (PLA). Variations in the geometric design of the cells result in the formation of cores with auxetic and non-auxetic topologies. Uniaxial tensile tests are performed to identify the mechanical properties of the involved biopolymer. The second attempt consists on comparing three architectural core structures under impact test using experimental and computational methods. Our findings highlight the specific influence of core topology on energy absorption in 3D-printed sandwich structures. Results indicate that while all three configurations (hexagonal, re-entrant, and rectangular) demonstrate comparable energy absorption values, the specific mechanisms and efficiencies vary, with re-entrant cores exhibiting distinct behaviors under impact.

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Effect of unit cell shape and structure volume fraction on the mechanical and vibration properties of 3D printed lattice structures

Cited by 4 publications

References 37 publications

Experimental Measurement of the Thermal Conductivity of Fused Deposition Modeling Materials with a DTC-25 Conductivity Meter

Experimental Measurement of the Thermal Conductivity of Fused Deposition Modeling Materials with a DTC-25 Conductivity Meter

Finite Element Analysis of Warping and Mechanical Properties of 3D Parts Printed by Fused Deposition Modeling

Behavior of sandwich structures with 3D-printed auxetic and non-auxetic cores under low velocity impact: Experimental and computational analysis

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