The arrangement patterns optimization of 3D honeycomb and 3D re-entrant honeycomb structures for energy absorption

Xia, BingChen; Huang, Xingyuan; Chang, Lijun; Zhang, Ruotong; Liao, Zhikang; Cai, Zhihua

doi:10.1016/j.mtcomm.2023.105996

Cited by 29 publications

(8 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A key observation from the compression test results is that the overall shape of the stress–strain diagram remained the same for the material, regardless of how densely it was filled [ 48 ]. As a grid pattern was used, there was only one sharp peak in the diagram.…”

Section: Resultsmentioning

confidence: 99%

Direct Pellet Three-Dimensional Printing of Polybutylene Adipate-co-Terephthalate for a Greener Future

Karimi,

Rahmatabadi,

Baghani

2024

Polymers

View full text Add to dashboard Cite

The widespread use of conventional plastics in various industries has resulted in increased oil consumption and environmental pollution. To address these issues, a combination of plastic recycling and the use of biodegradable plastics is essential. Among biodegradable polymers, poly butylene adipate-co-terephthalate (PBAT) has attracted significant attention due to its favorable mechanical properties and biodegradability. In this study, we investigated the potential of using PBAT for direct pellet printing, eliminating the need for filament conversion. To determine the optimal printing temperature, three sets of tensile specimens were 3D-printed at varying nozzle temperatures, and their mechanical properties and microstructure were analyzed. Additionally, dynamic mechanical thermal analysis (DMTA) was conducted to evaluate the thermal behavior of the printed PBAT. Furthermore, we designed and printed two structures with different infill percentages (40% and 60%) to assess their compressive strength and energy absorption properties. DMTA revealed that PBAT’s glass–rubber transition temperature is approximately −25 °C. Our findings demonstrate that increasing the nozzle temperature enhances the mechanical properties of PBAT. Notably, the highest nozzle temperature of 200 °C yielded remarkable results, with an elongation of 1379% and a tensile strength of 7.5 MPa. Moreover, specimens with a 60% infill density exhibited superior compressive strength (1338 KPa) and energy absorption compared with those with 40% infill density (1306 KPa). The SEM images showed that with an increase in the nozzle temperature, the quality of the print was greatly improved, and it was difficult to find microholes or even a layered structure for the sample printed at 200 °C.

show abstract

Section: Resultsmentioning

confidence: 99%

Direct Pellet Three-Dimensional Printing of Polybutylene Adipate-co-Terephthalate for a Greener Future

Karimi,

Rahmatabadi,

Baghani

2024

Polymers

View full text Add to dashboard Cite

show abstract

“…A novel sample multiplication method cut time consumption by half (93.75%). With the suggested organization pattern, simulations and testing showed a 43% improvement in energy absorption capacity under similar lateral displacement . A novel high-order nonlinear friction model with spatial distribution features was developed for magnetorheological materials.…”

Section: Introductionmentioning

confidence: 99%

“…With the suggested organization pattern, simulations and testing showed a 43% improvement in energy absorption capacity under similar lateral displacement. 46 A novel high-order nonlinear friction model with spatial distribution features was developed for magnetorheological materials. Three magnetorheological material types were used to develop and validate the hysteresis dynamic model, which included nonlinear forces and demonstrated a high signal-to-noise ratio and outstanding prediction accuracy.…”

Section: Introductionmentioning

confidence: 99%

Plain-Woven Areca Sheath Fiber-Reinforced Epoxy Composites: The Influence of the Fiber Fraction on Physical and Mechanical Features and Responses of the Tribo System and Machine Learning Modeling

Subramanyam,

Kotikula,

Bennehalli

et al. 2024

ACS Omega

View full text Add to dashboard Cite

Recent studies focus on enhancing the mechanical features of natural fiber composites to replace synthetic fibers that are highly useful in the building, automotive, and packing industries. The novelty of the work is that the woven areca sheath fiber (ASF) with different fiber fraction epoxy composites has been fabricated and tested for its tribological responses on three-body abrasion wear testing machines along with its mechanical features. The impact of the fiber fraction on various features is examined. The study also revolves around the development and validation of a machine learning predictive model using the random forest (RF) algorithm, aimed at forecasting two critical performance parameters: the specific wear rate (SWR) and the coefficient of friction (COF). The void fraction is observed to vary between 0.261 and 3.8% as the fiber fraction is incremented. The hardness of the mat rises progressively from 40.23 to 84.26 HRB. A fair ascent in the tensile strength and its modulus is also observed. Even though a short descent in flexural strength and its modulus is seen for 0 to 12 wt % composite specimens, they incrementally raised to the finest values of 52.84 and 2860 MPa, respectively, pertinent to the 48 wt % fiber-loaded specimen. A progressive rise in the ILSS and impact strength is perceptible. The wear behavior of the specimens is reported. The worn surface morphology is studied to understand the interface of the ASF with the epoxy matrix. The RF model exhibited outstanding predictive prowess, as evidenced by high R-squared values coupled with low mean-square error and mean absolute error metrics. Rigorous statistical validation employing paired t tests confirmed the model's suitability, revealing no significant disparities between predicted and actual values for both the SWR and COF.

show abstract

“…As a result, three-dimensional (3D) printing has emerged as a viable option for closing the dimensional divide. Furthermore, the creative freedom of 3D printing enables the fabrication of customized microscale structures (such as honeycombs) with increased ease of processing and design flexibility. ,− …”

Section: Introductionmentioning

confidence: 99%

Electrically Conductive Polymers for Additive Manufacturing

Yan,

Han,

Jiang

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The use of electrically conductive polymers (CPs) in the development of electronic devices has attracted significant interest due to their unique intrinsic properties, which result from the synergistic combination of physicochemical properties in conventional polymers with the electronic properties of metals or semiconductors. Most conventional methods adopted for the fabrication of devices with nonplanar morphologies are still challenged by the poor ionic/electronic mobility of end products. Additive manufacturing (AM) brings about exciting prospects to the realm of CPs by enabling greater design freedom, more elaborate structures, quicker prototyping, relatively low cost, and more environmentally friendly electronic device creation. A growing variety of AM technologies are becoming available for three-dimensional (3D) printing of conductive devices, i.e., vat photopolymerization (VP), material extrusion (ME), powder bed fusion (PBF), material jetting (MJ), and lamination object manufacturing (LOM). In this review, we provide an overview of the recent research progress in the area of CPs developed for AM, which advances the design and development of future electronic devices. We consider different AM techniques, vis-a-vis, their development progress and respective challenges in printing CPs. We also discuss the material requirements and notable advances in 3D printing of CPs, as well as their potential electronic applications including wearable electronics, sensors, energy storage and conversion devices, etc. This review concludes with an outlook on AM of CPs.

show abstract

The arrangement patterns optimization of 3D honeycomb and 3D re-entrant honeycomb structures for energy absorption

Cited by 29 publications

References 39 publications

Direct Pellet Three-Dimensional Printing of Polybutylene Adipate-co-Terephthalate for a Greener Future

Direct Pellet Three-Dimensional Printing of Polybutylene Adipate-co-Terephthalate for a Greener Future

Plain-Woven Areca Sheath Fiber-Reinforced Epoxy Composites: The Influence of the Fiber Fraction on Physical and Mechanical Features and Responses of the Tribo System and Machine Learning Modeling

Electrically Conductive Polymers for Additive Manufacturing

Contact Info

Product

Resources

About