Rodriguez-Florez, N;
Carriero, A;
Shefelbine, SJ;
(2017)
The use of XFEM to assess the influence of intra-cortical porosity on crack propagation.
Computer Methods in Biomechanics and Biomedical Engineering
, 20
(4)
pp. 385-392.
10.1080/10255842.2016.1235158.
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Abstract
This study aimed at using eXtended finite element method (XFEM) to characterize crack growth through bone's intra-cortical pores. Two techniques were compared using Abaqus: (1) void material properties were assigned to pores; (2) multiple enrichment regions with independent crack-growth possibilities were employed. Both were applied to 2D models of transverse images of mouse bone with differing porous structures. Results revealed that assigning multiple enrichment regions allows for multiple cracks to be initiated progressively, which cannot be captured when the voids are filled. Therefore, filling pores with one enrichment region in the model will not create realistic fracture patterns in Abaqus-XFEM.
| Type: | Article |
|---|---|
| Title: | The use of XFEM to assess the influence of intra-cortical porosity on crack propagation |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1080/10255842.2016.1235158 |
| Publisher version: | http://doi.org/10.1080/10255842.2016.1235158 |
| Language: | English |
| Additional information: | Copyright © 2016 Informa UK Limited, trading as Taylor & Francis Group. This is an Accepted Manuscript of an article published by Taylor & Francis in Computer Methods in Biomechanics and Biomedical Engineering on 22 September 2016, available online: http://www.tandfonline.com/10.1080/10255842.2016.1235158 |
| Keywords: | XFEM, crack propagation, intra-cortical porosity, microstructure, osteogenesis imperfecta |
| UCL classification: | UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1522394 |
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