Topology optimization and freeform fabrication framework for developing prosthetic feet

Nicholas P. Fey, Brian J. South, Carolyn C. Seepersad, Richard R. Neptune

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

The ability to easily design and manufacture prosthetic feet with novel design characteristics has great potential to improve amputee rehabilitation and care. This study presents a framework using topology optimization methods to develop new prosthetic feet to be manufactured using selective laser sintering. As an example application, the framework was used to generate a prosthetic foot that minimizes material usage while trying to replicate the stiffness characteristics of a commercially available carbon fiber foot. The solution was validated using finite element methods to verify the foot's loading response, and a prototype was manufactured. The result was a novel foot design that with future design modification has the potential to improve amputee gait by providing energy storage and return and reducing prosthetic weight.

Original languageEnglish (US)
Title of host publication20th Annual International Solid Freeform Fabrication Symposium, SFF 2009
PublisherUniversity of Texas at Austin (freeform)
Pages607-619
Number of pages13
StatePublished - Jan 1 2009
Event20th Annual International Solid Freeform Fabrication Symposium, SFF 2009 - Austin, TX, United States
Duration: Aug 3 2009Aug 5 2009

Other

Other20th Annual International Solid Freeform Fabrication Symposium, SFF 2009
CountryUnited States
CityAustin, TX
Period8/3/098/5/09

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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  • Cite this

    Fey, N. P., South, B. J., Seepersad, C. C., & Neptune, R. R. (2009). Topology optimization and freeform fabrication framework for developing prosthetic feet. In 20th Annual International Solid Freeform Fabrication Symposium, SFF 2009 (pp. 607-619). University of Texas at Austin (freeform).