Strengthening mechanism of PDLLA coated titania foam

被引：7

作者：

Fiedler, T. ^{[1
]}

Fisher, M. ^{[1
]}

Roether, J. A. ^{[2
]}

Belova, I. V. ^{[1
]}

Samtleben, T. ^{[3
]}

Bernthaler, T. ^{[3
]}

Murch, G. E. ^{[1
]}

Boccaccini, A. R. ^{[4
]}

机构：

[1] Univ Newcastle, Sch Engn, Callaghan, NSW 2287, Australia

[2] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, Inst Polymer Mat, D-91058 Erlangen, Germany

[3] Univ Appl Sci Aalen, Dept Surface Engn & Mat Sci, Fac Mech & Mat Engn, D-73430 Aalen, Germany

[4] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, Inst Biomat, D-91058 Erlangen, Germany

来源：

MECHANICS OF MATERIALS | 2014年 / 69卷 / 01期

关键词：

Biomaterial; Composite material; Finite element analysis; Micro-computed tomography; Micro-structure; TISSUE ENGINEERING SCAFFOLDS; COMPOSITE; BIOMATERIALS; COATINGS; STATE;

D O I：

10.1016/j.mechmat.2013.09.007

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

This paper addresses the numerical analysis of the mechanical properties of titania foam intended for use in tissue engineering scaffolds. Special focus is given to a PDLLA coating that has been shown to distinctly increase the mechanical strength of the scaffold. Micro-computed tomography (mu CT) data of a real scaffold are obtained and converted into numerical calculation models. Finite element simulations are performed alternately with and without the PDLLA coating. In addition, a strut model containing a single micro-crack is analysed. Numerical results indicate that filling the crack with PDLLA significantly increases the strength of the strut by attenuating stress concentrations. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：35 / 40

页数：6

共 20 条

[1]

[Anonymous], 2007, DUBBEL TASCHENBUCH M

[2]

CeramTec, 2012, MAT SEL GUID

[3]

Tailoring elastic properties of PLGA/TiO2 biomaterials [J].