Measurements and micro-mechanical modelling of the response of sintered titanium foams

被引：20

作者：

Siegkas, P. ^{[1
]}

Petrinic, N. ^{[1
]}

Tagarielli, V. L. ^{[2
]}

机构：

[1] Univ Oxford, Impact Engn Lab, Oxford OX5 1PF, England

[2] Univ London Imperial Coll Sci Technol & Med, Dept Aeronaut, London SW7 2AZ, England

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2016年 / 57卷

关键词：

Titanium; Foam; Compression; Shear; Tension; FEM; Voronoi; BEHAVIOR; SCAFFOLDS;

D O I：

10.1016/j.jmbbm.2016.02.024

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Titanium foams of relative density in the range 0.35-0.50 are tested in quasi-static compression, tension and shear. The response is ductile in compression but brittle, and weaker, in shear and tension. Virtual foam microstructures are generated by an algorithm based on Voronoi tessellation of three-dimensional space, capable of reproducing the measured size distribution of the pores in the foam. Finite Element (FE) simulations are conducted to explore the mechanical response of the material, by analysing the elasto-plastic response of a statistical volume element (SVE). The simulations correctly predict the ductile compressive response and its dependence on relative density. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：365 / 375

页数：11

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