Seyedkavoosi Seyedali, Zaytsev Dmitry, Drach Borys, Panfilov Peter, Gutkin Mikhail Yu, Sevostianov Igor
Department of Mechanical and Aerospace Engineering, New Mexico State University, Las Cruces, NM, 88003, USA.
Department of Physics, Institute of Natural Sciences, Ural Federal University, Ekaterinburg, 620000, Russia.
Int J Eng Sci. 2017 Feb;111:52-60. doi: 10.1016/j.ijengsci.2016.11.005. Epub 2016 Nov 25.
We propose the fraction-exponential description of the viscoelastic properties of dentin. Creep tests are performed on specimens cut from the molar coronal part. Four parameters determining instantaneous and long term Young's moduli as well as the relaxation time are extracted from the experimental data. The same procedure is repeated using the experimental measurements of Jantarat et al (2002) for the specimens cut from the root part of incisor. Physical meaning of the parameters and the difference between them for different sets of specimens are discussed.
我们提出了牙本质粘弹性特性的分数指数描述。对从磨牙冠部切取的标本进行蠕变试验。从实验数据中提取出四个决定瞬时和长期杨氏模量以及松弛时间的参数。使用Jantarat等人(2002年)对从切牙根部分切取的标本的实验测量结果重复相同的程序。讨论了参数的物理意义以及不同组标本之间参数的差异。