Finite element modeling as a tool for predicting the fracture behavior of robocast scaffolds

被引：67

作者：

Miranda, Pedro ^{[1
]}

Pajares, Antonia ^{[1
]}

Guiberteau, Fernando ^{[1
]}

机构：

[1] Univ Extremadura, Dept Ingn Mecan Energet & Mat, E-06071 Badajoz, Spain

来源：

ACTA BIOMATERIALIA | 2008年 / 4卷 / 06期

关键词：

Finite element analysis; Robocasting; Scaffolds; Strength; Fracture modes;

D O I：

10.1016/j.actbio.2008.05.020

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The use of finite element modeling to calculate the stress fields in complex scaffold structures and thus predict their mechanical behavior during service (e.g., as load-bearing bone implants) is evaluated. The method is applied to identifying the fracture modes and estimating the strength of robocast hydroxyapatite and beta-tricalcium phosphate scaffolds, consisting of a three-dimensional lattice of interpenetrating rods. The calculations are performed for three testing configurations: compression, tension and shear. Different testing orientations relative to the calcium phosphate rods are considered for each configuration. The predictions for the compressive configurations are compared to experimental data from uniaxial compression tests. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1715 / 1724

页数：10

共 18 条

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