Experimental studies of NiTi self-expanding stent designs”


Eaton-Evans, J., Dulieu-Barton, J.M., Little, E and Brown, I.A. (2006) Experimental studies of NiTi self-expanding stent designs”. Journal of ASTM International, 3, (9), JAI100388 [12pp]. (doi:10.1520/JAI100388).

Download

Full text not available from this repository.

Original Publication URL: http://dx.doi.org/10.1520/JAI100388

Description/Abstract

Preliminary investigations to apply thermoelastic stress analysis (TSA) to Nitinol self-expanding stents are described. Tests conducted at high resolution indicated that a viable thermoelastic signal can be obtained from the fine stent structure. It is shown that it is possible to digitally compensate for errors arising from motion at this high resolution. High variability in Nitinol’s material properties with stress and temperature result in a complex thermoelastic response. Correction strategies are proposed to account for variation in material properties and to minimize errors due to thermal variations in order to derive calibration factors for the austenite and martensite material phases. The greatest challenge is identified as calibrating the thermoelastic response from the radially loaded stent structure where it is likely the material is highly inhomogeneous

Item Type: Article
ISSNs: 1546-962X (print)
Related URLs:
Keywords: Nitinol, thermoelastic stress analysis, stent
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
ePrint ID: 41248
Date Deposited: 09 Aug 2006
Last Modified: 27 Mar 2014 18:26
URI: http://eprints.soton.ac.uk/id/eprint/41248

Actions (login required)

View Item View Item