scholarly journals Auxetic interpenetrating composites: A new approach to non-porous materials with a negative or zero Poisson’s ratio

2020 ◽  
Vol 243 ◽  
pp. 112195
Author(s):  
Zhengyang Zhang ◽  
Hanxing Zhu ◽  
Ru Yuan ◽  
Sanmin Wang ◽  
Tongxiang Fan ◽  
...  
Keyword(s):  
Porous Materials ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
New Approach

Prediction of the Poisson's ratio of porous materials

1996 ◽  
Vol 31 (6) ◽  
pp. 1643-1646 ◽  
Author(s):  
M. Arnold ◽  
A. R. Boccaccini ◽  
G. Ondracek
Keyword(s):  
Porous Materials ◽  
Poisson’S Ratio ◽  
Poisson's Ratio

New Approach for Fabrication of Auxetic Foam and Determination of Poisson's Ratio

2014 ◽  
Vol 695 ◽  
pp. 713-716
Author(s):  
Shokri Rad Mozafar ◽  
Ahmad Zaini
Keyword(s):  
Cost Effectiveness ◽  
Poisson’S Ratio ◽  
Simple Technique ◽  
Poisson's Ratio ◽  
Foam Sample ◽  
Modified Technique ◽  
Great Cost ◽  
New Approach ◽  
Compression Loading

Conventional foam could be converted to auxetic foam under auxeticity process. A new and simple technique to fabricate auxetic foam and to further determine its Poisson’s ratio is described in this paper. It is evident that the present modified technique in fabricating auxetic foam could be adopted to produce desirable auxeticity characteristics. Moreover, the approach used for determination of Poisson’s ratio has considerably merit with great cost effectiveness. This method is, however, specific to auxetic foam sample under compression loading.

On Effective Mechanical Properties of Two-Dimensional Porous Materials

2020 ◽  
Vol 12 (04) ◽  
pp. 2050040
Author(s):  
Zaoyang Guo ◽  
Lei Wang ◽  
Xiaojun Guo ◽  
Yang Chen ◽  
Leiting Dong
Keyword(s):  
Porous Materials ◽  
Young’S Modulus ◽  
Poisson’S Ratio ◽  
Young's Modulus ◽  
Full Range ◽  
Theoretical Models ◽  
Poisson's Ratio ◽  
Analytical Models ◽  
Two Dimensional ◽  
Effective Mechanical Properties

Two-dimensional (2D) representative volume element (RVE) has been widely used to simulate the effective behaviors of the materials with aligned pores. In this paper, the anisotropy indexes are defined for the 2D RVE model to quantitatively evaluate the extent of anisotropy of the model. A normalized procedure is then proposed to compute the effective moduli of the RVE models, which can further minimize the influence of anisotropy of the RVE models. The effective Poisson’s ratio of the porous materials is challengeable to be estimated well, and few analytical models can give good predictions. The theoretical models are proposed to approach the effective Young’s modulus and the effective Poisson’s ratio of the 2D porous materials covering the full range of porosity. It is numerically validated that the theoretical models give accurate predictions for the effective Young’s modulus and Poisson’s ratio of the 2D porous materials.

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