| نویسندگان | H. Ashrafi, M. Shariyat |
|---|---|
| نشریه | Journal of Biomedical Physics and Engineering |
| شماره مجلد | 2 |
| نوع مقاله | Original Research |
| تاریخ انتشار | 2012 |
| رتبه نشریه | ISI |
| نوع نشریه | چاپی |
| کشور محل چاپ | ایران |
چکیده مقاله
he main objective of this work was to develop a mathematical approach capable of determining the time-dependent Poisson's ratios of the periodontal ligaments based on experimental data of stress relaxation and creep tests. The resulting stress relaxation and creep curves are described by a three-parameter viscoelastic models. The time-dependent Poisson's ratios of the periodontal ligaments have been obtained as increasing functions of time, because shear modulus of these ligaments relaxes much more than their bulk modulus.