Novel structure with negative Poisson’s ratio and enhanced Young’s modulus

Lu, Zixing; Li, Xiang; Yang, Zhenyu; Xie, Fan

doi:10.1016/j.compstruct.2015.11.036

Cited by 157 publications

(39 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The auxetic response of the system under tension is the superposition of the contraction of normal material and the expansion due to the structure. The configuration of the system and the relative amplitude A/L are the external factors of the auxetic response, which is in accordance with the phenomenon of the high dependence on the microstructural geometry reported by other scholars . While the designed system can exploit the Poisson's ratio of the bulk material, which form an intrinsic factor behind the auxeticity.…”

Section: Resultssupporting

confidence: 85%

“…Periodic hexachiral, tetrachiral, rotachiral lattices with remarkable variability of the Young's modulus, and Poisson's ratio were studied by Bacigalupo et al using the homogenization technique . By adding ribs to re‐entrant honeycomb lattice, Lu et al were able to obtain a honeycomb‐like configuration with an enhanced the Young's modulus . The auxeticity of zeolite and silicate can be explained by the rotating rigid unit model proposed by Grima et al which shows that auxeticity was gained from the open structure under loading .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Negative Poisson's ratio in non‐porous smooth curve sheet

Tan

Zhou

2017

Physica Status Solidi (b)

View full text Add to dashboard Cite

The microstructure of the manmade auxetic materials always involve inherited porosity and sharp corners, where the stress concentration occurred. We have proposed a novel kind of non‐porous smooth curve sheet which exhibits a negative Poisson's ratio and has a low stress concentration factor. The auxetic response was validated by good qualitative and quantitative agreements between the tensile experiments and numerical analysis of array model. Using the experimentally validated finite element model, the parametric study on the evolution of the macroscopic Poisson's ratio, the stress concentration factor on the geometry parameters and the parental material properties were investigated. This one phase auxetic smooth curve sheet, which is simple to manufacture and assemble into 3D structures, may be used in a variety of industrial applications.

show abstract

Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Negative Poisson's ratio in non‐porous smooth curve sheet

Tan

Zhou

2017

Physica Status Solidi (b)

View full text Add to dashboard Cite

show abstract

“…59 Adding a narrow rib in the re-entrant hexagonal honeycombs was shown to signicantly improve the Young's modulus. 61 A linear relation could be obtained between the Young's modulus and Poisson's ratio, by changing the thickness of the added rib under small strain tension. The Poisson's ratio could even be tuned to positive values by changing the force constant of the added rib.…”

Section: Honeycombsmentioning

confidence: 99%

“…The Poisson's ratio could even be tuned to positive values by changing the force constant of the added rib. 61 Many of the above-mentioned studies focused on the deformation and properties in the elastic range. However, when used in load bearing applications, large deformations may occur.…”

Section: Honeycombsmentioning

confidence: 99%

Auxetic mechanical metamaterials

2017

View full text Add to dashboard Cite

show abstract

“…Gibson and Ashby [33], Masters and Evans [34], and Evans et al [35] are the pioneers working on this structure. Using the geometric configuration and coordinate system of Figure 2, Gibson et al indicated that reentrant cellular structures have negative Poisson's ratio when an external load is given to it [33,36].…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Studies of a Light-Weight Auxetic Cellular Vibration Isolation Base

Zhang

Yang

2016

Shock and Vibration

View full text Add to dashboard Cite

This paper presents a preliminary study of the dynamic performance of a novel light-weight auxetic (negative Poisson’s ratio) cellular vibration isolation base constituted by reentrant hexagonal honeycombs. Numerical and experimental analyses were conducted to reveal the effects of Poisson’s ratio (cell angle) and relative density (cell thickness) of these reentrant honeycombs on the dynamic performance of this novel base and to propose design guidelines for the best use of the auxetic cellular vibration isolation system. By doing numerical analysis, we found that, by decreasing the relative density of reentrant honeycombs and increasing Poisson’s ratio of them, excellent vibration isolation performance of the auxetic cellular base will be achieved. This analysis was followed by static, modal, and frequency response tests, which verified the results of the numerical analysis.

show abstract

Novel structure with negative Poisson’s ratio and enhanced Young’s modulus

Cited by 157 publications

References 36 publications

Negative Poisson's ratio in non‐porous smooth curve sheet

Negative Poisson's ratio in non‐porous smooth curve sheet

Auxetic mechanical metamaterials

Numerical and Experimental Studies of a Light-Weight Auxetic Cellular Vibration Isolation Base

Contact Info

Product

Resources

About