Honeycomb–corrugation hybrid as a novel sandwich core for significantly enhanced compressive performance

Han, Bin; Qin, Ke-Ke; Yu, Bo; Wang, Bo; Zhang, Qiancheng; Lu, Tian Jian

doi:10.1016/j.matdes.2015.12.158

Cited by 135 publications

(44 citation statements)

References 23 publications

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“…Although regular hexagonal arrangements are the most common geometries to be used in honeycomb panels, research has also focussed on new designs for the enhancement of in-plane properties [15]. There have been several experimental and numerical studies on the behaviour of sandwich structures with different core topologies which include honeycombs with corrugated walls [16,17], with ceramic tiles [18], auxetic cores [15,19], egg-box structures [7,20], truss cores [21,22], and other core designs, such as the ones studied by Araújo et al [23]. These authors [23] introduced three core designs for sandwich composite structures based on topologies proposed by Ronan et al [24].…”

Section: Introductionmentioning

confidence: 99%

Investigating the contribution of geometry on the failure of cellular core structures obtained by additive manufacturing

Araújo¹,

Leite²,

Ribeiro³

et al. 2019

Frattura Ed Integrità Strutturale

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The aim of this work is to evaluate the mechanical properties and failure analysis of cellular core structures with different geometries that were obtained by additive manufacturing. Sandwich panels are widely used in the aerospace and automotive industry. In general, the core of the panels is made of a two dimensional cellular with a honeycomb geometry. With the development of additive manufacturing methods it is possible to produce samples with complex geometries which may compete with conventional designs. Thus an investigation was conducted to evaluate the mechanical behavior of three core geometries, specifically, regular honeycombs, lotus and hexagonal honeycombs with Plateau borders. Samples were produced in PLA (polylactic acid) by fused deposition modelling (FDM). Experimental compressive loading in three different directions, and finite element simulations of the samples permit to evaluate their deformation and failure mechanisms.

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Section: Introductionmentioning

confidence: 99%

Investigating the contribution of geometry on the failure of cellular core structures obtained by additive manufacturing

Araújo¹,

Leite²,

Ribeiro³

et al. 2019

Frattura Ed Integrità Strutturale

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“…However, such three-dimensional absorber may be difficult to resist deformation because of the weak mechanical properties of the thin resistive patches. Sandwich structures with honeycomb cores have excellent mechanical performances and are widely applied as engineering structures 22 , 23 . Recent research shows that honeycombs and its composite structures have significant benefits on energy absorption 24 , 25 , vibration control 26 , thermal buckling resistance 27 , acoustic absorption 28 and even electromagnetic absorption 29 properties.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic wave absorption and compressive behavior of a three-dimensional metamaterial absorber based on 3D printed honeycomb

Jiang

Yan

et al. 2018

Sci Rep

129

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Lightweight structures with multi-functions such as electromagnetic wave absorption and excellent mechanical properties are required in spacecraft. A three-dimensional metamaterial absorber consisting of honeycomb and resistive films was proposed and fabricated through 3D printing and silk-screen printing technology. According to simulation and experiment results, the present three-dimensional metamaterial absorber can realize an absorptivity of more than 90% in a wide band of 3.53–24.00 GHz, and improve absorbing efficiency for transverse magnetic (TM) waves of oblique incidence angle from 0° to 70°. The compression test results reveal that compressive strength of the 3D printed honeycomb can reach 10.7 MPa with density of only 254.91 kg/m3, and the energy absorption per volume Wv and per unit mass Wm are 4.37 × 103 KJ/m3 and 17.14 KJ/Kg, respectively. The peak compressive strength and energy absorption per mass are at least 2.2 and 3 times comparing to metallic lattice cores with the same density. Outstanding electromagnetic wave absorption and mechanical performance make the present three-dimensional metamaterial absorber more competitive in engineering applications.

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“…Improving the grammage of core and surface layer to enhance honeycomb bearing strength will consume a lot of base materials. Therefore, many other improved explorations have been carried out in many references, such as filling material in honeycomb cells, double‐core paper of honeycomb core structure, honeycomb structure with grid, cell structure with hexagonal and quadrilateral combination design, square honeycomb structure, combination of corrugated and trapezoidal honeycomb, honeycomb structure with variable thickness, single‐walled channel improved core structure, etc. According to the performance characteristics and technological requirements of paper materials, the abovementioned structures can be used less for paper materials.…”

Section: Introductionmentioning

confidence: 99%

Structure design of reinforced honeycomb paperboard core and characterization of its out‐of‐plane bearing strength

Mou

2019

Packag Technol Sci

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Honeycomb paperboard's out‐of‐plane bearing performance is one of the important properties in packaging field application. Further improvement of its bearing performance has important value in engineering practice. In this paper, a honeycomb core structure was designed, and the bonding dimension and manufacturing process were designed. The mechanism of out‐of‐plane quasi‐static compression deformation of reinforced honeycomb paperboard was analyzed by experiments. The theoretical model of out‐of‐plane platform stress was constructed by applying the plastic deformation, plastic energy dissipation and energy conservation theory. The results show that the improved structure can be mechanically bonded in a flat state with less technological changes. Under the same honeycomb core material and core size parameters, the bearing strength of the improved structure increases by an average of 3.9 times to conventional structure. In order to meet the same compressive strength requirement, the improved structure can reduce the performance requirements of honeycomb core material or increase the core size compared with the conventional structure. When the honeycomb core cell is larger, the tension on the core layer required for the production process is reduced. The theoretical and experimental data are in good agreement with each other, and the relative errors are all less than 13%.

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Honeycomb–corrugation hybrid as a novel sandwich core for significantly enhanced compressive performance

Cited by 135 publications

References 23 publications

Investigating the contribution of geometry on the failure of cellular core structures obtained by additive manufacturing

Investigating the contribution of geometry on the failure of cellular core structures obtained by additive manufacturing

Electromagnetic wave absorption and compressive behavior of a three-dimensional metamaterial absorber based on 3D printed honeycomb

Structure design of reinforced honeycomb paperboard core and characterization of its out‐of‐plane bearing strength

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