TY  - JOUR
PY  - 2007//
TI  - Quasi-linear viscoelastic characterization of human hip ligaments
JO  - Biomedical sciences instrumentation
A1  - Kemper, Andrew R.
A1  - McNally, Craig
A1  - Smith, Byron
A1  - Duma, Stefan M.
SP  - 324
EP  - 329
VL  - 43
IS  - 
N2  - The object of this study was to develop a quasi-linear viscoelastic model for the iliofemoral and ischiofemoral hip ligaments. In order to accomplish this, a total of 56 axial tension tests were performed on 8 bone-ligament-bone specimens prepared from 4 fresh frozen male cadavers. Each specimen went through a battery of 7 tests including a series of step-and-hold tests and load-and-unload ramp tests. The bone-ligament-bone specimens were situated so that the load from a servo-hydraulic Material Testing System would be applied on the long axis of each ligament. The reduced relaxation data was fit to a two exponential damping function while the instantaneous elastic response was fit to a power-law function. These two constituents were then combined to create a single constitutive equation for each ligament. The quasi-linear viscoelastic model presented in this study can be used to improve the biofidelity of computational models of the human hip.<p /> <p>Language: en</p>
LA  - en
SN  - 0067-8856
UR  - http://dx.doi.org/
ID  - ref1
ER  -