KEYWORDS: Bone, Digital image correlation, 3D metrology, Cameras, Speckle pattern, Calibration, Imaging systems, Interferometry, In vivo imaging, Biomedical engineering
In this study a whole field, non-contact optical method, Stereo Digital Image Correlation (SDIC), was used to
determine the strain distribution and mechanical properties of fresh bone in Phosphate Buffered Saline (PBS)
solution. Knowing the whole-surface strain distribution of bone is useful for understanding the effects of normal
physiological loading, disease, drugs and aging. In addition, knowing the mechanical properties of bone will aid in
the design of new biomaterials. Although there currently are methods for measuring the mechanical properties of
bone, these methods have some limitations. Many miss areas of strain concentration, especially because of the
inhomogeneous nature of bone. SDIC overcomes these limitations by being able to precisely measure whole-surface
3D contour and strain of samples in solution over a wide range of deformations. In this study, SDIC was used to
measure the axial strain of fresh chicken tibia. A setup which has the capability to apply force axially was designed.
This paper describes the methodology of SDIC for measuring fresh bone in a PBS solution. The effect of drying
time on strain distribution was investigated. The usefulness of the SDIC system is demonstrated by examples of
deformation and strain measurements for different chicken tibia in PBS solution.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.