A New Type of Hierarchical Honeycomb in-Plane Impact Study

Song, Hang; Zhang, Chenyang; Wang, Pengyu; Meng, Lingzhi; Wang, Zhenqing

doi:10.3390/ma14081917

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…They investigated effect of geometrical parameters on the frequency of the panel. Song et al 9 investigated impact behavior of augmented double arrow honeycomb as hierarchical honeycomb and shoed that collapse stress is improved.…”

Section: Introductionmentioning

confidence: 99%

Flexural analysis of second-order corrugated composite cores: Experimental, numerical, and theoretical studies

Talaie

Shaban

Khoshlesan

2023

The Journal of Strain Analysis for Engineering Design

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Corrugated cores with structural hierarchy are one types of advanced cores that inspired from nature. In this work, the bending behavior of a second order, hierarchical corrugated structure has been analyzed. Experimental tests are implied to sandwich panels with both first- and second-order corrugated core by means of three-point bending test. For trapezoidal core, finite element model is provided and numerical results are validated by experimental results. Then, the validated properties are used to model sandwich panel with first- and second-order corrugated cores. To make a correct comparison, out-of-plane shear modulus of mentioned cores is calculated. Further to classical approach of ASTM7250, based on the first-order shear deformation theory (FSDT), a closed-form solution is used to predict the out-of-plane core shear modulus and compared with ASTM procedure. Results reveal that including shear deformation effects, the determined shear modulus based on FSDT is larger than classical standard procedure. Furthermore, shear modulus of second-order corrugated core is smaller than first-order one of the same relative densities.

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Section: Introductionmentioning

confidence: 99%

Flexural analysis of second-order corrugated composite cores: Experimental, numerical, and theoretical studies

Talaie

Shaban

Khoshlesan

2023

The Journal of Strain Analysis for Engineering Design

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A novel bio-inspired hierarchical tetrachiral structure that enhances energy absorption capacity

Pham

Huang

2023

J Mech Sci Technol

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Study on re-entrant hierarchical honeycombs in-plane impact

Lian,

Xu,

et al. 2023

Sci Rep

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The introduction of hierarchical structure in cell materials can further improve their energy absorption effect, and negative Poisson's ratio materials have excellent energy absorption capacity and special deformation mode. In this paper, augmented double arrow honeycomb structures is introduced into the re-entrant honeycomb with negative Poisson's ratio as a substructure (RHA) to improve the mechanical properties of the first-order re-entrant honeycomb and enhance the energy absorption effect of the structure. The analytical formula of the collapse stress of honeycomb under quasi-static compression was derived by the two-scale method. The failure stress of RHA under different relative densities and impact velocities is discussed, and the analytical formula of RHA stress in dynamic crushing is derived by combining momentum conservation. Due to the special substructure, the secondary honeycomb discussed in this paper has two plateau periods. In this paper, the second plateau stress of the honeycomb structure is calculated innovatively. The numerical simulation results show that the collapse stress of RHA in the first plateau period is similar to that of the first-order re-entrant honeycomb, and the collapse stress in the second plateau period is increased by 332%. The research in this paper shows that the honeycomb with the second plateau period has a better energy absorption effect, which is an effective strategy for improving the energy absorption effect of the honeycomb. It can be further explored to improve the impact resistance of the honeycomb.

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A New Type of Hierarchical Honeycomb in-Plane Impact Study

Cited by 4 publications

References 30 publications

Flexural analysis of second-order corrugated composite cores: Experimental, numerical, and theoretical studies

Flexural analysis of second-order corrugated composite cores: Experimental, numerical, and theoretical studies

A novel bio-inspired hierarchical tetrachiral structure that enhances energy absorption capacity

Study on re-entrant hierarchical honeycombs in-plane impact

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