Elastic modulus of tetrakaidecahedron open-cell cellular materials. (December 2015)

• Record Type: Journal Article
• Authors: Zhang, L. G.; Zhu, H.; Yuan, L.
• Is Part Of: Materials research innovations. Volume 19(2015)Supplement 10
• Page Start: S10-374
• Page End: S10-377
• Publication Date: 2015-12
• Subjects: Cellular materials -- Tetrakaidecahedron -- Elastic modulus -- Finite element method -- Microstructure; Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891715Z.0000000002200
• Languages: English
• ISSNs: 1432-8917

Abstract

Abstract : In order to investigate the influence of the microstructure of open cellular materials on its properties, numerical simulations were performed to the open-cell tetrakaidecahedron model with a circle-strut transitional–junction. By means of the finite elements method, the influence of microstructure and relative density on elastic modulus is obtained. Results show that circle-strut radius and transitional–junction curvature radius are the primary factors of the relative density increment; influence of the non-linearity of relative density on relative elastic modulus is similar to that of the circle-strut radius on relative elastic modulus, both are obviously greater than that of the transitional–junction curvature radius on relative elastic modulus. For low-density cellular materials, the solid materials added at the intersecting part of the circle-struts brings same influence on elastic modulus for the model, but for high-density cellular materials, the solid materials added at the intersecting part of the circle-struts has greater influence on elastic modulus.