Dual Graded Lattice Structures: Generation Framework and Mechanical Properties Characterization

Mostafa, Khaled G.; Momesso, Guilherme A; Li, Xiuhui; Nobes, David S.; Qureshi, Ahmed Jawad

doi:10.3390/polym13091528

Cited by 20 publications

(9 citation statements)

References 63 publications

(70 reference statements)

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“…However, some grading methods may lead to weak layers or discontinuous unit cells, such as changing the unit cell size or combining different unit cells. However, these defects can be effectively avoided by changing the strut diameter to achieve the gradient, and therefore this method of realizing the gradient of lattice structure has been more widely adopted in the more recent research [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Density Gradient on the Compression of Functionally Graded BCC Lattice Structure

et al. 2023

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In this paper, five grading functional gradient lattice structures with a different density perpendicular to the loading direction were proposed, and the surface morphology, deformation behavior, and compression properties of the functional gradient lattice structures prepared by selective laser melting (SLM) with Ti-6Al-4V as the building material were investigated. The results show that the characteristics of the laser energy distribution of the SLM molding process make the spherical metal powder adhere to the surface of the lattice structure struts, resulting in the actual relative density of the lattice structure being higher than the designed theoretical relative density, but the maximum error does not exceed 3.33%. With the same relative density, all lattice structures with density gradients perpendicular to the loading direction have better mechanical properties than the uniform lattice structure, in particular, the elastic modulus of LF, the yield strength of LINEAR, and the first maximum compression strength of INDEX are 28.99%, 16.77%, and 14.46% higher than that of the UNIFORM. In addition, the energy absorption per unit volume of the INDEX and LINEAR is 38.38% and 48.29% higher, respectively, than that of the UNIFORM. Fracture morphology analysis shows that the fracture morphology of these lattice structures shows dimples and smooth planes, indicating that the lattice structure exhibits a mixed brittle and ductile failure mechanism under compressive loading. Finite element analysis results show that when the loading direction is perpendicular to the density gradient-forming direction, the higher density part of the lattice structure is the main bearing part, and the greater the density difference between the two ends of the lattice structure, the greater the elastic modulus.

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Section: Introductionmentioning

confidence: 99%

Influence of Density Gradient on the Compression of Functionally Graded BCC Lattice Structure

et al. 2023

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“…Figure 4(C) and (D) show that the AM capability is not limited to the production of linear-gradient materials. The grading can be sinusoidal with changes that can adapt to design for AM specifications (Mostafa et al , 2021; Hooshmand et al , 2021).…”

Section: Exclusive Features Of Additive Manufacturing To Enhance Indu...mentioning

confidence: 99%

A review of Industry 4.0 and additive manufacturing synergy

Khorasani¹,

Loy

Ghasemi

et al. 2022

RPJ

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Purpose This paper reviews the synergy of Industry 4.0 and additive manufacturing (AM) and discusses the integration of data-driven manufacturing systems and product service systems as a key component of the Industry 4.0 revolution. This paper aims to highlight the potential effects of Industry 4.0 on AM via tools such as digitalisation, data transfer, tagging technology, information in Industry 4.0 and intelligent features. Design/methodology/approach In successive phases of industrialisation, there has been a rise in the use of, and dependence on, data in manufacturing. In this review of Industry 4.0 and AM, the five pillars of success that could see the Internet of Things (IoT), artificial intelligence, robotics and materials science enabling new levels of interactivity and interdependence between suppliers, producers and users are discussed. The unique effects of AM capabilities, in particular mass customisation and light-weighting, combined with the integration of data and IoT in Industry 4.0, are studied for their potential to support higher efficiencies, greater utility and more ecologically friendly production. This research also illustrates how the digitalisation of manufacturing for Industry 4.0, through the use of IoT and AM, enables new business models and production practices. Findings The discussion illustrates the potential of combining IoT and AM to provide an escape from the constraints and limitations of conventional mass production whilst achieving economic and ecological savings. It should also be noted that this extends to the agile design and fabrication of increasingly complex parts enabled by simulations of complex production processes and operating systems. This paper also discusses the relationship between Industry 4.0 and AM with respect to improving the quality and robustness of product outcomes, based on real-time data/feedback. Originality/value This research shows how a combined approach to research into IoT and AM can create a step change in practice that alters the production and supply paradigm, potentially reducing the ecological impact of industrial systems and product life cycle. This paper demonstrates how the integration of Industry 4.0 and AM could reshape the future of manufacturing and discusses the challenges involved.

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“…Due to the significant advantages that polymer-based materials have recently brought to the research and industrial community globally, new studies and technological developments have centred on enhancing levels of multifunctionality in diverse applications. When compared to single homogenous structures, the ability to fabricate bespoke multi-material structures utilising additive manufacturing technology enabled particular material selection and improved various attributes [ 145 , 146 , 147 , 148 , 149 , 150 ]. Considering the nature of the topics covered in this review, more discussion has been extended to the limitations of “additive manufacturing on lattice structures” and the challenges of including more aspects of the bibliometric analysis.…”

Section: Implications Of Trends For Future Researchmentioning

confidence: 99%

“…Therefore, in the process of determining where to publish their papers, researchers working on technologies or processes of additive manufacturing may run into problems. Some of these additive manufacturing studies include different types of lattice structures [ 150 , 151 , 152 , 153 , 154 , 155 , 156 , 157 , 158 , 159 ]. Typical representations showing the computational model for typical lattice structures, such as (a) the strut-based lattice structure, and (b) the surface-based lattice structure, are seen in Figure 24 .…”

Section: Implications Of Trends For Future Researchmentioning

confidence: 99%

Scientometric Review for Research Patterns on Additive Manufacturing of Lattice Structures

et al. 2022

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Over the past 15 years, interest in additive manufacturing (AM) on lattice structures has significantly increased in producing 3D/4D objects. The purpose of this study is to gain a thorough grasp of the research pattern and the condition of the field’s research today as well as identify obstacles towards future research. To accomplish the purpose, this work undertakes a scientometric analysis of the international research conducted on additive manufacturing for lattice structure materials published from 2002 to 2022. A total of 1290 journal articles from the Web of Science (WoS) database and 1766 journal articles from the Scopus database were found using a search system. This paper applied scientometric science, which is based on bibliometric analysis. The data were subjected to a scientometric study, which looked at the number of publications, authorship, regions by countries, keyword co-occurrence, literature coupling, and scientometric mapping. VOSviewer was used to establish research patterns, visualize maps, and identify transcendental issues. Thus, the quantitative determination of the primary research framework, papers, and themes of this research field was possible. In order to shed light on current developments in additive manufacturing for lattice structures, an extensive systematic study is provided. The scientometric analysis revealed a strong bias towards researching AM on lattice structures but little concentration on technologies that emerge from it. It also outlined its unmet research needs, which can benefit both the industry and academia. This review makes a prediction for the future, with contributions by educating researchers, manufacturers, and other experts on the current state of AM for lattice structures.

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Dual Graded Lattice Structures: Generation Framework and Mechanical Properties Characterization

Cited by 20 publications

References 63 publications

Influence of Density Gradient on the Compression of Functionally Graded BCC Lattice Structure

Influence of Density Gradient on the Compression of Functionally Graded BCC Lattice Structure

A review of Industry 4.0 and additive manufacturing synergy

Scientometric Review for Research Patterns on Additive Manufacturing of Lattice Structures

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