Quasi-static and dynamic compressive properties and deformation mechanisms of 3D printed polymeric cellular structures with Kelvin cells

Duan, Yu; Du, Bing; Shi, Xiaopeng; Hou, Bing; Li, Yu Long

doi:10.1016/j.ijimpeng.2019.05.017

Cited by 82 publications

(28 citation statements)

References 47 publications

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“…A "X-shaped" deformation pattern can be observed in simulation of plate specimens which was also present in the high strain-rate experiments on P25 and P30 specimen. This deformation mode shape has also been observed in literature in plate-Kelvin cell lattice structures (Duan et al, 2019) and the in-plane response of hexagonal honeycombs (Ruan et al, 2003). Sim-J o u r n a l P r e -p r o o f Journal Pre-proof ulation deformation images also reveal higher stress concentrations at unit cell boundaries in plate specimens than in rod specimens.…”

Section: Numerical Simulationssupporting

confidence: 83%

“…Experiments on polymeric plate-Kelvin lattices have shown the position of deformation bands can be dependent on strain-rate, with high strain-rate deformation occurring at lattice edges and low strain-rate deformation occurring in the middle of the specimen (Duan et al, 2019). The dynamic response of cellular J o u r n a l P r e -p r o o f Journal Pre-proof materials spans two regimes: a transitional dynamic regime and a shock regime.…”

Section: Introductionmentioning

confidence: 99%

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High strain-rate compression behavior of polymeric rod and plate Kelvin lattice structures

Weeks

Ravichandran

2022

Mechanics of Materials

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Section: Numerical Simulationssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

High strain-rate compression behavior of polymeric rod and plate Kelvin lattice structures

Weeks

Ravichandran

2022

Mechanics of Materials

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“…[ 19 ] Lattice structures and auxetic metamaterials have been studied at both quasistatic [ 20 ] and dynamic loading conditions. [ 21–29 ] However, coupled thermomechanical effects related to changes of strain rate and temperature are scarce. For polymers, the performance of additively manufactured Nylon 12 lattice structures at different temperatures has been investigated using the drop‐weight dynamic loading conditions.…”

mentioning

confidence: 99%

Impact Behavior of Additively Manufactured Stainless Steel Auxetic Structures at Elevated and Reduced Temperatures

et al. 2020

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Metamaterials produced using additive manufacturing represent advanced structures with tunable properties and deformation characteristics. However, the manufacturing process, imperfections in geometry, properties of the base material as well as the ambient and operating conditions often result in complex multiparametric dependence of the mechanical response. As the lattice structures are metamaterials that can be tailored for energy absorption applications and impact protection, the investigation of the coupled thermomechanical response and ambient temperature‐dependent properties is particularly important. Herein, the 2D re‐entrant honeycomb auxetic lattice structures additively manufactured from powdered stainless steel are subjected to high strain rate uniaxial compression using split Hopkinson pressure bar (SHPB) at two different strain rates and three different temperatures. An in‐house developed cooling and heating stages are used to control the temperature of the specimen subjected to high strain rate impact loading. Thermal imaging and high‐speed cameras are used to inspect the specimens during the impact. It is shown that the stress–strain response as well as the crushing behavior of the investigated lattice structures are strongly dependent on both initial temperature and strain rate.

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“…Nonetheless, such method is associated with several challenges when employed to test cellular lattice structures. Therefore, researchers have explored alternative method called Direct Impact Hopkinson bar (DIHB) through modifying the experimental approach [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Specific Energy Absorption of Triply Periodic Minimal Surfaces Subjected to Impact Loading

et al. 2021

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Triply periodic minimal surfaces (TPMS) have attracted tremendous research interest due to their lightweight and superior mechanical properties. In this study, two TPMS sheet-based structures (FRD and Neovius) are designed, fabricated, and tested under dynamic and quasistatic loading conditions. Selective laser melting (SLM) is employed to facilitate the fabrication of such complex structures out of stainless steel (SS316L). Scanning electron microscopy (SEM) is utilized to assess the quality of the printed structures. The dynamic compressive behaviour is investigated through performing a direct impact compression test via a Direct Impact Hopkinson Bar (DIHB) at a strain rate of 2000 s-1. Quasi-static tests are also performed at a strain rate of 0.005 s-1. The specific energy absorption (SEA) is compared under both loading conditions to investigate the performance of such structures under dynamic loading. Results show that both structures exhibit higher SEA values under high deformation rates. In fact, Neovius structures outperform FRD structures in terms of specific energy absorption as it exhibits a SEA value of 22.11 J/g and 24.8 J/g SEA in quasi-static and dynamic conditions, respectively.

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Quasi-static and dynamic compressive properties and deformation mechanisms of 3D printed polymeric cellular structures with Kelvin cells

Cited by 82 publications

References 47 publications

High strain-rate compression behavior of polymeric rod and plate Kelvin lattice structures

High strain-rate compression behavior of polymeric rod and plate Kelvin lattice structures

Impact Behavior of Additively Manufactured Stainless Steel Auxetic Structures at Elevated and Reduced Temperatures

Investigation of the Specific Energy Absorption of Triply Periodic Minimal Surfaces Subjected to Impact Loading

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