ABSTRACT
The non-linear time-dependent three-dimensional constitutive model studied in this work was the Bergstrom-Boyce model (Bergstrom & Boyce 1998). It may be implemented in commercial finite element software packages like ABAQUS, by using the material parameters obtained by calibration of several mechanical experimental results. Therefore, this work will add the prediction of mechanical behavior and optimization of the functional
1 INTRODUCTION
Polyurethane (PU) derived from the castor oil (Ricinus communis oil), which was recognized by the FDA, has been studied for medical applications such as dental implants, bone cement, joint prosthesis, cranium plastic surgeries, jaw prostheses, contention plates for disc hernia, etc (Ferneda et al. 2006). In previous works (Ohara et al. 1995) the biocompatibility, osteoconductivity and osteoinduction of this PU was studied.
