A Parametric Study of the Mechanical Properties of Open-Cell Kelvin Structures

7th International Conference on Advanced Materials and Structures

Serban, D.A.^1 ; Srndan, S.^1 ; Negru, R.^1 ; Belgiu, G.^2 ; Maravina, L.^1

Department of Mechanics and Strength of Materials, Politehnica University of Timisoara, 1 Mihai Viteazu Avenue, Timisoara

300 222, Romania^1

Department of Management of Production and Transportation, Politehnica University Timioara, Romania^2

关键词: Elastic response;    Kelvin structures;    Parametric study;    Relative density;    Relative stiffness;    Structure-based;    Strut thickness;    Variable-dimension;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/416/1/012108/pdf
DOI  :  10.1088/1757-899X/416/1/012108

来源: IOP

【 摘 要 】

This study investigates the elastic response of a tessellated structure based on cylindrical struts generated along the wireframe of a truncated octahedron (the Kelvin cell). The structure has two variable dimensions (strut thickness and strut length), the relative density being plotted as a function of the given parameters and ranged between 6.7 10-4 and 0.217. The variation of the relative stiffness of the structure was determined as a function of relative density. The size effect was also investigated by determining the elastic response for different cell numbers.