Acoustic Emission Based Surveillance System for Prediction of Stress Fractures
Abstract
Stress fractures of bone constitute the most serious musculoskeletal overuse injury during military training of male and female recruits. We believe that the cascade of events in stress fractures is structured as the upregulation of bone turnover, amplification of porosity, induction of greater local strains and associated increase in damage activity a priori to fracture. The hypothesis of our study is that the onset of stress fractures can be predicted by monitoring the evolution of microdamage activity using acoustic emissions. During the first year bone tissue was procured and amassed for specimen preparation. A new mechanical loading set up was designed and fabricated to improve the cyclic loading tests. Ristological protocols were developed for sequential labeling of bone tissue prior to and after mechanical loading to separate in vivo and in vitro microdamage. Acoustic emission tests were run on a preliminary group of samples and the characteristic of extraneous waveforms emanating from other sources were obtained for filtering purposes. In the overall the protocols have been finalized and the proposed tests will be accomplished during the second year.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2004
- Accession Number
- ADA433023
Entities
People
- Ozan Akkus
Organizations
- University of Toledo