Magnetostrictive Actuation of a Bone Loading Composite for Accelerated Tissue Formation
Joint Authors
Dapino, Marcelo J.
Bucio, Ryan
Hart, Stephen
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-08
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
When bone is dynamically loaded it adapts its shape to better support the load.
We have developed a magnetostrictive composite consisting of Terfenol-D particles encapsulated in an epoxy resin that changes length when exposed to magnetic fields.
When bonded to the surface of a porcine tibia ex vitro, the composite produces surface strains greater than 900 με at a frequency of 30 Hz and magnetic field of 170 kA/m.
This is more than sufficient strain magnitude and frequency to promote cortical bone growth in both rats and turkeys and to maintain cortical bone structure in humans.
Key advantages of the composite over conventional electromechanical or thermomechanical actuators are its simplicity, compact size, and remote actuation.
A mathematical model describing the strains and stresses in the bone is presented.
American Psychological Association (APA)
Hart, Stephen& Bucio, Ryan& Dapino, Marcelo J.. 2012. Magnetostrictive Actuation of a Bone Loading Composite for Accelerated Tissue Formation. Smart Materials Research،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-458113
Modern Language Association (MLA)
Hart, Stephen…[et al.]. Magnetostrictive Actuation of a Bone Loading Composite for Accelerated Tissue Formation. Smart Materials Research No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-458113
American Medical Association (AMA)
Hart, Stephen& Bucio, Ryan& Dapino, Marcelo J.. Magnetostrictive Actuation of a Bone Loading Composite for Accelerated Tissue Formation. Smart Materials Research. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-458113
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458113