Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Numerical analysis of composite structure with in-plane isotropic negative Poisson’s ratio
T2 - effects of materials properties and geometry features of inclusions
AU - Hou, Xiaonan
AU - Hu, Hong
AU - Silberschmidt, Vadim
PY - 2014/3
Y1 - 2014/3
N2 - A novel composite structure with isotropic negative Poisson’s ratio has been presented in our previous paper [1]. However, the previous study has only focused on the effects of random inclusions. In this work, an extended numerical study on the effects of materials properties and geometry features of inclusions is conducted in order to better understand the deformation mechanism and mechanical properties of this kind of composites. Using finite element method, the overall negative Poisson’s ratio effects and mechanical properties of the composites are analyzed in terms of different factors including thickness and stiffness of inclusions with uniform and non-uniform struts. The structure optimization of the composites with better negative Poisson’s ratio effect and mechanical performance are discussed based on the numerical calculated results. The study shows that the Poisson’s ratio effects and mechanical properties of the composites are significantly affected by geometrical features, stiffness and boundary conditions of inclusions.
AB - A novel composite structure with isotropic negative Poisson’s ratio has been presented in our previous paper [1]. However, the previous study has only focused on the effects of random inclusions. In this work, an extended numerical study on the effects of materials properties and geometry features of inclusions is conducted in order to better understand the deformation mechanism and mechanical properties of this kind of composites. Using finite element method, the overall negative Poisson’s ratio effects and mechanical properties of the composites are analyzed in terms of different factors including thickness and stiffness of inclusions with uniform and non-uniform struts. The structure optimization of the composites with better negative Poisson’s ratio effect and mechanical performance are discussed based on the numerical calculated results. The study shows that the Poisson’s ratio effects and mechanical properties of the composites are significantly affected by geometrical features, stiffness and boundary conditions of inclusions.
KW - A. Smart materials
KW - C. Finite element analysis (FEA)
KW - B. Mechanical properties, Negative Poisson’s ratio
U2 - 10.1016/j.compositesb.2013.10.030
DO - 10.1016/j.compositesb.2013.10.030
M3 - Journal article
VL - 58
SP - 152
EP - 159
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
SN - 1359-8368
ER -