Scalable, process-oriented beam lattices: Generation, characterization, and compensation for open cellular structures

Woodward, Ian R.; Fromen, Catherine A.

doi:10.1016/j.addma.2021.102386

Cited by 9 publications

(6 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The differences in relative density accuracy may occur due to the smaller spacing between beams in the BCC-500ø design compared to the other two designs, which leads to a high accumulation of resin curing in void regions of the lattice. These findings are in agreement with past studies for resin printing that have demonstrated greater resin accumulation and fusion toward the center of lattice structures [27]. The resin accumulation potentially occurs due to inner pores having impeded flow for resin due to further distance from lattice boundaries.…”

Section: Fabricated Designssupporting

confidence: 92%

“…Mechanical properties increased with higher exposure time and higher relative density designs. These results are in agreement with similar resin printing processes that have demonstrated resin accumulation that is dependent on the size and location of pores throughout a lattice, with greater fusion occurring toward the center [27]. Fabricated lattices are demonstrated in Figure 13, which indicates the larger proportion of fused pores for higher exposure designs with lower relative density.…”

Section: Process Effectssupporting

confidence: 86%

“…DLP printing operates by projecting light to cure a vat of resin to form an entire layer of a printed structure at once, which is an efficient build process with comparable or superior resolution to fused deposition modeling, liquid crystal display, and stereolithography printing [24][25][26]. Although DLP printing is highly accurate, there are still microscale variances even for simple lattices with Cube unit cells with beam diameters of 0.11 to 1.05 mm that require corrections to ensure printing uniformity [27]. Corrections are possible by altering beam diameters or exposure time per layer, but further experimental studies are necessary to determine how corrections affect mechanical outcomes.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mechanics of 3D-Printed Polymer Lattices with Varied Design and Processing Strategies

et al. 2022

View full text Add to dashboard Cite

Emerging polymer 3D-printing technologies are enabling the design and fabrication of mechanically efficient lattice structures with intricate microscale structures. During fabrication, manufacturing inconsistencies can affect mechanical efficiency, thereby driving a need to investigate how design and processing strategies influence outcomes. Here, mechanical testing is conducted for 3D-printed lattice structures while altering topology, relative density, and exposure time per layer using digital light processing (DLP). Experiments compared a Cube topology with 800 µm beams and Body-Centered Cube (BCC) topologies with 500 or 800 µm beams, all designed with 40% relative density. Cube lattices had the lowest mean measured relative density of ~42%, while the 500 µm BCC lattice had the highest relative density of ~55%. Elastic modulus, yield strength, and ultimate strength had a positive correlation with measured relative density when considering measurement distributions for thirty samples of each design. BCC lattices designed with 50%, 40%, and 30% relative densities were then fabricated with exposure-per-layer times of 1500 and 1750 ms. Increasing exposure time per layer resulted in higher scaling of mechanical properties to relative density compared to design alteration strategies. These results reveal how design and fabrication strategies affect mechanical performance of lattices suitable for diverse engineering applications.

show abstract

Section: Fabricated Designssupporting

confidence: 92%

Section: Process Effectssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanics of 3D-Printed Polymer Lattices with Varied Design and Processing Strategies

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Additive manufacturing, a process that refers to the creation of three dimensional (3D) objects through the controlled deposition or fusion of material, presents one means to create structured sorbents that enable high throughput flows with increased bed depth while maintaining the rapid mass transfer characteristic of nanoporous membranes. [49][50][51][52] The ability to spatially control micrometer scale morphologies opens the possibility to engineer flow patterns within the sorbent. [53] For instance, modeling flow profiles within a woodpile structure (Figure 3, Additive Manufacturing, [Low Magnification]) provides structure-function insight on how 3D structures can modulate the contributions of diffusive and convective mass transport mechanisms.…”

Section: Polymer Processing Tailors Sorbent Morphologymentioning

confidence: 99%

Design Considerations for Next‐Generation Polymer Sorbents: From Polymer Chemistry to Device Configurations

Ouimet

Phillip

et al. 2022

Macro Chemistry & Physics

View full text Add to dashboard Cite

Adsorption‐based separations have the potential to enhance the sustainability of established industrial processes and facilitate the adoption of new practices. They also provide ways to meet emerging needs in the isolation of resources from non‐traditional supplies and the remediation of hazardous environmental contaminants. In this regard, there are significant opportunities to advance both fundamental polymer science and engineering applications through next‐generation adsorbent systems. Here, after briefly reviewing the history, potential application space, and underlying physics of polymer sorbents, design considerations that connect macromolecular design with systems‐level functionality, are discussed. First, polymer processing conditions are discussed in terms of the final nano‐ and microscale structures produced. Subsequently, the macromolecular chemistry of the materials is analyzed with respect to the ability of the separations systems to have analyte‐specific binding. Finally, a similar analysis is performed regarding the desorption mechanism used to release the target solutes. In this way, the manuscript attempts to connect macromolecular architecture with polymer physics and materials processing to provide guidance on how these important interrelationships impact the ultimate performance of sorbent systems.

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

Scalable, process-oriented beam lattices: Generation, characterization, and compensation for open cellular structures

Cited by 9 publications

References 43 publications

Mechanics of 3D-Printed Polymer Lattices with Varied Design and Processing Strategies

Mechanics of 3D-Printed Polymer Lattices with Varied Design and Processing Strategies

Design Considerations for Next‐Generation Polymer Sorbents: From Polymer Chemistry to Device Configurations

Scientometric Review for Research Patterns on Additive Manufacturing of Lattice Structures

Contact Info

Product

Resources

About