Elastic stiffness characterization using three-dimensional full-field deformation obtained with optical coherence tomography and digital volume correlation
Elastic stiffness characterization using three-dimensional full-field deformation obtained with optical coherence tomography and digital volume correlation
This paper presents a methodology for stiffness identification from depth-resolved three-dimensional (3-D) full-field deformation fields. These were obtained by performing digital volume correlation on optical coherence tomography volume reconstructions of silicone rubber phantoms. The effect of noise and reconstruction uncertainties on the performance of the correlation algorithm was first evaluated through stationary and rigid body translation tests to give an indication of the minimum strain that can be reliably measured. The phantoms were then tested under tension, and the 3-D deformation fields were used to identify the elastic constitutive parameters using a 3-D manually defined virtual fields method. The identification results for the cases of uniform and heterogeneous strain fields were compared with those calculated analytically through the constant uniaxial stress assumption, showing good agreement.
121512
Fu, Jiawei
4d70ee31-623d-4d44-869f-74d8333746bf
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Ruiz, Pablo D.
ada7e54d-7bee-46ba-82e1-d94b0697599a
17 December 2013
Fu, Jiawei
4d70ee31-623d-4d44-869f-74d8333746bf
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Ruiz, Pablo D.
ada7e54d-7bee-46ba-82e1-d94b0697599a
Fu, Jiawei, Pierron, Fabrice and Ruiz, Pablo D.
(2013)
Elastic stiffness characterization using three-dimensional full-field deformation obtained with optical coherence tomography and digital volume correlation.
Journal of Biomedical Optics, 18 (12), .
(doi:10.1117/1.JBO.18.12.121512).
Abstract
This paper presents a methodology for stiffness identification from depth-resolved three-dimensional (3-D) full-field deformation fields. These were obtained by performing digital volume correlation on optical coherence tomography volume reconstructions of silicone rubber phantoms. The effect of noise and reconstruction uncertainties on the performance of the correlation algorithm was first evaluated through stationary and rigid body translation tests to give an indication of the minimum strain that can be reliably measured. The phantoms were then tested under tension, and the 3-D deformation fields were used to identify the elastic constitutive parameters using a 3-D manually defined virtual fields method. The identification results for the cases of uniform and heterogeneous strain fields were compared with those calculated analytically through the constant uniaxial stress assumption, showing good agreement.
This record has no associated files available for download.
More information
Published date: 17 December 2013
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 361389
URI: http://eprints.soton.ac.uk/id/eprint/361389
ISSN: 1083-3668
PURE UUID: ad89b81c-7195-4fe2-9f5d-9c4498613947
Catalogue record
Date deposited: 22 Jan 2014 15:30
Last modified: 15 Mar 2024 03:35
Export record
Altmetrics
Contributors
Author:
Jiawei Fu
Author:
Pablo D. Ruiz
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
