کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1428163 1509172 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Correction of some mechanical characteristics of human dentin under compression considering the shape effect
ترجمه فارسی عنوان
اصلاح برخی از ویژگی های مکانیکی دنتین انسان تحت فشرده سازی با توجه به اثر شکل
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
چکیده انگلیسی
The paper is aimed to determine the true compression strength and Poisson's ratio of human dentin. The origin of the shape effect in dentin under compression is discussed, too. It was shown that the shape effect is mainly caused by the friction between the surface of the sample and the compression plates. Ratio d/h = 4 is the optimal proportion between the diagonal of compression surface and the height of dentin sample for compression testing. Inhomogeneous deformation takes place in the sample with a low aspect ratio whereas lateral deformation is suppressed in the sample with a high aspect ratio. There is significant difference between the conventional compression strength and the true compression strength. True compression strength of human dentin is 432 ± 16 MPa, the Young's modulus is 4.04 ± 0.12 GPa and Poisson's ratio of human dentin is 0.14 ± 0.04.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 49, 1 April 2015, Pages 101-105
نویسندگان
,