Effect of Absorbent Foam Filling on Mechanical Behaviors of 3D-Printed Honeycombs

Yan, Leilei; Zhu, Keyu; Zhang, Yunwei; Zhang, Chun; Zheng, Xiaojing

doi:10.3390/polym12092059

Cited by 16 publications

(8 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…That is, increases in the height-to-thickness ratio and density have an adverse impact on the specific load and specific energy absorption, resulting in a rapid decline. This is consistent with the research results of Yan et al 29 Therefore, the mechanical properties, such as the peak load and energy absorption in Figure 9(a), are analyzed below.…”

Section: Load-displacement Curve and Deformation Failure Mode Under C...supporting

confidence: 90%

“…There are many types of foam, such as organic foams, including polypropylene (EPP), 20 polyurethane (PU) 21,22 and graphene-reinforced PU foam, 23 and inorganic foams, including metal foam 24 and foam concrete. 25,26 For the study of mechanical properties, the finite element method has been used 27,28 to determine the effective elastic properties, and studies of the in-plane and out-of-plane compression properties 29 and quasi-static compression and dynamic impact properties 20,30 have also been performed. The results showed that the foam filling significantly improved the compressive strength, and the higher the foam density was, the greater the compressive strength and energy absorption.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The compressive mechanical properties of honeycomb plates and beetle elytron plates with different foam densities and height-to-thickness ratios

Chen

Hao

et al. 2022

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

To investigate a new type of bionic energy-saving sandwich plate—the beetle elytron plate (BEP), the compressive mechanical properties of short basalt fiber reinforced epoxy resin composite BEPs and honeycomb plates with different polyvinyl chloride foam densities and height-to-thickness ratios were investigated. The mechanism of the coupling effect of the core structure, foam density and height-to-thickness ratio was revealed by observing the failure mode of the outer and inner ring honeycomb walls. This study can provide useful instruction for designing lightweight sandwich structures and accelerate the application of BEPs in engineering.

show abstract

Section: Load-displacement Curve and Deformation Failure Mode Under C...supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

The compressive mechanical properties of honeycomb plates and beetle elytron plates with different foam densities and height-to-thickness ratios

Chen

Hao

et al. 2022

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

show abstract

“…Another study on honeycomb-inspired structure is performed by using the same PLA material and FDM technology (Figure 2B). This study shows that the elastic modulus, compressive strength, and energy absorption per unit volume increase from 71.77, 2.16 MPa, 341 KJ/m 3 for the L-EH sample with low density to 496.97, 5.96 MPa, 2,132 KJ/m 3 for the L-FH-1 sample with high density (Yan et al, 2020).…”

Section: Honeycomb Structurementioning

confidence: 65%

“…The 3D printing bioinspired reinforced structures. (A) Mechanical properties of 3D printed thick honeycombs (Hedayati et al, 2016); (B) honeycomb-inspired structures and the in-plane compressive stress-strain curves for different layer thicknesses (Yan et al, 2020); (C) chiton scale-inspired flexible armor using rigid polymers (Connors et al, 2019); (D) the adult Allomyrina dichotoma beetle-inspired structure with the metal lattice structure fabricated by selective laser melting (SLM) (Du et al, 2020).…”

Section: Figure 2 |mentioning

confidence: 99%

Recent Advancements in Biomimetic 3D Printing Materials With Enhanced Mechanical Properties

et al. 2021

View full text Add to dashboard Cite

Nature has developed a wide range of functional microstructures with optimized mechanical properties over millions of years of evolution. By learning from nature’s excellent models and principles, biomimicry provides a practicable strategy for designing and fabricating the next smart materials with enhanced properties. Nevertheless, the complicated micro-structural constructions in nature models are beyond the ability of conventional processes, hindering the developments of biomimetic research and its forthputting in engineering systems. Additive manufacturing (AM) or 3D printing processes have revolutionized manufacturing via their ability to manufacture complex micro/mesostructures, increase design freedom, provide mass customization, and waste minimization, as well as rapid prototyping. Here, a review of recent advances in biomimetic 3D printing materials with enhanced mechanical properties is provided. The design and fabrication were inspired by various natural structures, such as balsa wood, honeycomb, nacre, lobster claw, etc., which are presented and discussed. Finally, future challenges and perspectives are given.

show abstract

“…To take advantage of foam materials and honeycomb, lightweight foam-filled honeycomb was proposed by a simple combination of these two components with significantly improved energy absorption capacity [ 29 ]. Therefore, the traditional hexagonal honeycomb has been widely applied in various foam-filled structures due to its advantages of a simple manufacturing process, strong impact resistance, and excellent energy absorption capacity [ 30 , 31 , 32 ]. The hexagonal honeycomb filled with foam concrete [ 33 ], expanded polypropylene foam [ 34 ], and polyurethane foam [ 35 ] were proposed, and thorough research on their mechanical performance and energy absorption was conducted.…”

Section: Introductionmentioning

confidence: 99%

In-Plane Impact Response of Graded Foam Concrete-Filled Auxetic Honeycombs

Wang

Jia²,

Liu³

et al. 2023

Materials

View full text Add to dashboard Cite

Foam-filled honeycombs have been widely applied due to their excellent load transfer mitigation and energy absorption capacity. In the present study, a layered graded foam concrete-filled auxetic honeycomb was proposed by tuning its overall compression deformation mode to layer-by-layer deformation mode to realize multi-level structural protection. The effect of the honeycomb cell-wall thickness gradient (with an average thickness of 0.25 mm, thickness gradients of 0.30:0.25:0.20, 0.35:0.25:0.15 and 0.40:0.25:0.10, and corresponding positive gradients) and the foam concrete filler density gradient (408:575:848, 848:575:408) on the response mode, load transfer, energy absorption, and Poisson’s ratio of the proposed composite was systematically investigated. The results showed that the graded composite exhibited an obvious layered deformation mode and a negative Poisson’s ratio effect under relatively low and moderate loading rates (1 m/s, 10 m/s, respectively), especially with the foam concrete density gradient. Under a high loading rate (100 m/s), the graded composite demonstrated progressive collapse initiating from the loading end with a layer-by-layer crushing mode, regardless of the thickness and density gradient. In the response of the composite with a 0.2:0.2:0.2 thickness ratio and a 408:575:848 foam concrete gradient subjected to 1 m/s crushing, the first-layer, second-layer, and third-layer foam concrete absorbed 94.62%, 88.72%, and 86.94% of the total foam concrete energy absorption in the corresponding crushing stage, respectively. Compared with the counterpart homogeneous composites, although the graded composite had an insignificant improvement on energy absorption (less than 5%), it was able to significantly reduce the peak load (as high as 30%) to mitigate the load transfer to the protected structure. The effective Poisson’s ratio of the first layer in the composite with positive gradient (408:575:848) increased to −2 then converged to −0.6 under 2 m/s and 10 m/s crushing, and ranged from −0.4 to −0.1 under 50 m/s and 100 m/s crushing, respectively. The effective Poisson’s ratio of the middle and bottom layers increased to −2 initially and converged to range −0.4 to −0.1, regardless of the crushing speed. The staged response mode of the graded composite facilitated the realization of multi-level structure protection with significantly reduced peak load transferred to the protected structure and tuned energy absorption.

show abstract

Effect of Absorbent Foam Filling on Mechanical Behaviors of 3D-Printed Honeycombs

Cited by 16 publications

References 39 publications

The compressive mechanical properties of honeycomb plates and beetle elytron plates with different foam densities and height-to-thickness ratios

The compressive mechanical properties of honeycomb plates and beetle elytron plates with different foam densities and height-to-thickness ratios

Recent Advancements in Biomimetic 3D Printing Materials With Enhanced Mechanical Properties

In-Plane Impact Response of Graded Foam Concrete-Filled Auxetic Honeycombs

Contact Info

Product

Resources

About