Experimental and numerical investigation of 3D printed bio-inspired lattice structures for mechanical behaviour under Quasi static loading conditions

Chouhan, Ganesh; Murali, Gunji Bala; Bidare, Prveen; Doodi, Ramakrishna; Kumar, Ranjeet

doi:10.1016/j.mtcomm.2023.105658

Cited by 11 publications

(7 citation statements)

References 28 publications

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“…Topology optimization (TO) and generative design can generate structural sound and innovative designs [74][75][76][77][78][79]. This is complemented with the use of lattice structures, minimization of support structures, and consideration of anisotropy, which are integral to the process [35,[80][81][82][83]. Material selection and heat management play fundamental roles, as does using both CAD software tools and iterative prototyping.…”

Section: Manufacture and Design Considerations For Fff With Metallic ...mentioning

confidence: 99%

Fused Filament Fabrication for Metallic Materials: A Brief Review

Costa,

Sequeiros,

Vieira

2023

Materials

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Fused filament fabrication (FFF) is an extrusion-based additive manufacturing (AM) technology mostly used to produce thermoplastic parts. However, producing metallic or ceramic parts by FFF is also a sintered-based AM process. FFF for metallic parts can be divided into five steps: (1) raw material selection and feedstock mixture (including palletization), (2) filament production (extrusion), (3) production of AM components using the filament extrusion process, (4) debinding, and (5) sintering. These steps are interrelated, where the parameters interact with the others and have a key role in the integrity and quality of the final metallic parts. FFF can produce high-accuracy and complex metallic parts, potentially revolutionizing the manufacturing industry and taking AM components to a new level. In the FFF technology for metallic materials, material compatibility, production quality, and cost-effectiveness are the challenges to overcome to make it more competitive compared to other AM technologies, like the laser processes. This review provides a comprehensive overview of the recent developments in FFF for metallic materials, including the metals and binders used, the challenges faced, potential applications, and the impact of FFF on the manufacturing (prototyping and end parts), design freedom, customization, sustainability, supply chain, among others.

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Section: Manufacture and Design Considerations For Fff With Metallic ...mentioning

confidence: 99%

Fused Filament Fabrication for Metallic Materials: A Brief Review

Costa,

Sequeiros,

Vieira

2023

Materials

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“…Xu [38], Zhang [39], and others designed honeycomb structures based on bionic ideas and found that the capacity for absorption by honeycomb structures was significant. Ganesh et al [40] were inspired by Nautilus to use 3D printing of tubular lattice structures and found that the lattice structures are lightweight and have high load-carrying capacity. Zhang et al [41] were inspired by the structure of grapefruit peel to design a layered honeycomb and found that the specific energy absorption and platform stress of the layered honeycomb were 1.5 and 2.5 times greater than those of the conventional honeycomb.…”

Section: Introductionmentioning

confidence: 99%

Study on the Deformation Mode and Energy Absorption Characteristics of Protective Honeycomb Sandwich Structures Based on the Combined Design of Lotus Root Nodes and Leaf Stem Veins

Chen,

Zhang

et al. 2024

JMSE

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Sandwich structures are often used as protective structures on ships. To further improve the energy-absorbing characteristics of traditional honeycomb sandwich structures, an energy-absorbing mechanism is proposed based on the gradient folding deformation of lotus root nodes and a leafy stem vein homogenizing load mechanism. A honeycomb sandwich structure is then designed that combines lotus root nodes and leafy stem veins. Four types of peak-nest structures, traditional cellular structure (TCS), lotus root honeycomb structure (LRHS), leaf vein honeycomb structure (LVHS), and lotus root vein combined honeycomb structure (LRVHS), were prepared using 3D printing technology. The deformation modes and energy absorption characteristics of the four honeycomb structures under quasistatic action were investigated using a combination of experimental and simulation methods. It was found that the coupling design improved the energy absorption in the structural platform region of the LRHS by 51.4% compared to that of the TCS due to its mechanical mechanism of helical twisting and deformation. The leaf vein design was found to enhance the peak stress of the structure, resulting in a 4.84% increase in the peak stress of the LVHS compared to that of the TCS. The effects of the number, thickness, and position of the leaf vein plates on the honeycomb structure were further explored. The greatest structural SEA effect of 1.28 J/g was observed when the number of leaf vein plates was four. The highest SEA of 1.36 J/g was achieved with a leaf vein plate thickness of 0.6 mm, representing a 7.3% improvement compared to that of the 0.2 mm thickness. These findings may provide valuable insights into the design of lightweight honeycomb sandwich structures with high specific energy absorption.

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“…The compression test results of hierarchical foam showed better energy absorption characteristics as compared to aluminum foam. R doodi et al 1 [19][20][21] used the technique to develop hybrid novel structures for SEA applications and the performance of the structures is improved by prediction studies. Hu et al [22] researched the Lotus root-filled tube (LFT) to make a bionic object that can enhance the EA characteristics of the crash box.…”

Section: Introductionmentioning

confidence: 99%

Experimental and analytical investigation of bio-inspired lattice structures under compressive loading

Doodi

Murali

2023

Eng. Res. Express

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The main objective of this study is to fabricate a Novel bio-inspired lattice structure for energy absorption. A lattice structure design was proposed based on the microstructure of one of the various butterfly species Papilio Xuthus. Two major parameters are chosen from the structure to make multiple designs which may cause changes in the behavior of the structure among all available parameters. The parametric values required for the designs were calculated with the help of Response Surface Methodology (RSM) using Minitab software. The proposed designs are modeled in Autodesk Fusion 360 and 3D printed specimens of size 40x40x40 (all are in mm) are fabricated by Stereolithography (SLA) process based on the chosen parameters. The 3D-printed specimens are tested under quasi-static compressive loading using Instron 8801 Universal testing machine (UTM). The test results obtained from the testing are used to construct regression equations for energy absorption (EA) and specific energy absorption (SEA). The developed equations can be used to find out EA and SEA values for any combination of the proposed parameters (x and d) for suitable energy absorption applications.

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Experimental and numerical investigation of 3D printed bio-inspired lattice structures for mechanical behaviour under Quasi static loading conditions

Cited by 11 publications

References 28 publications

Fused Filament Fabrication for Metallic Materials: A Brief Review

Fused Filament Fabrication for Metallic Materials: A Brief Review

Study on the Deformation Mode and Energy Absorption Characteristics of Protective Honeycomb Sandwich Structures Based on the Combined Design of Lotus Root Nodes and Leaf Stem Veins

Experimental and analytical investigation of bio-inspired lattice structures under compressive loading

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