Abstract
We analyse semi-confined (i.e. using no-slip boundary conditions)
compression experiment of very soft tissue sample using finite element
method. We show that the assumption that the planes perpendicular
to the direction of the applied force remain plane during the experiments
is not satisfied for compression levels lower than previously stated
in Miller 2005. Method for testing very soft biological tissues
in compression. Journal of Biomechanics 38, 153-158. Therefore,
we recommend that the parameters for constitutive models of very
soft tissues be determined by fitting a solution of the finite element
models of the experimental set-up to the measurements obtained using
semi-confined compression experiments.
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