scholarly journals Deformation Behavior of Human Dentin under Uniaxial Compression

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Dmitry Zaytsev ◽  
Sergey Grigoriev ◽  
Peter Panfilov
Keyword(s):  
Mechanical Properties ◽  
Crack Growth ◽  
Uniaxial Compression ◽  
Deformation Behavior ◽  
Deformation Rate ◽  
Hard Tissue ◽  
Rate Effects ◽  
Human Dentin ◽  
Root Dentin

Deformation behavior of a human dentin under compression including size and rate effects is studied. No difference between mechanical properties of crown and root dentin is found. It is mechanically isotropic high elastic and strong hard tissue, which demonstrates considerable plasticity and ability to suppress a crack growth. Mechanical properties of dentin depend on a shape of samples and a deformation rate.

scholarly journals Mapping of the Micro-Mechanical Properties of Human Root Dentin by Means of Microindentation

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 505
Author(s):  
Michael Kucher ◽  
Martin Dannemann ◽  
Niels Modler ◽  
Martina Romy Bernhard ◽  
Christian Hannig ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Indentation Creep ◽  
Indentation Hardness ◽  
Indentation Modulus ◽  
Microstructural Alterations ◽  
Starting Point ◽  
Human Dentin ◽  
Root Dentin ◽  
Cervical Root ◽  
Martens Hardness

The extensive knowledge of root dentin’s mechanical properties is necessary for the prediction of microstructural alterations and the teeth’s deformations as well as their fracture behavior. Standardized microindentation tests were applied to apical, medial, and cervical root sections of a mandibular human first molar to determine the spatial distribution of the hard tissue’s properties (indentation modulus, indentation hardness, Martens hardness, indentation creep). Using an indentation mapping approach, the inhomogeneity of mechanical properties in longitudinal as well as in transversal directions were measured. As a result, the tooth showed strongly inhomogeneous material properties, which depended on the longitudinal and transversal positions. In the transversal cutting planes of the cervical, medial, apical sections, the properties showed a comparable distribution. A statistical evaluation revealed an indentation modulus between 12.2 GPa and 17.8 GPa, indentation hardness between 0.4 GPa and 0.64 GPa and an indentation creep between 8.6% and 10.7%. The established standardized method is a starting point for further investigations concerning the intensive description of the inhomogeneous mechanical properties of human dentin and other types of dentin.

scholarly journals PHYSICAL AND MECHANICAL PROPERTIES OF DENTIN AND SAMPLE COMPOSITE MATERIAL FILTEK ULTIMATE (3M ESPE) IN THE ADHESIVE COMPOUNDS

2014 ◽  
Vol 10 (5) ◽  
pp. 20-23
Author(s):  
А. Ивашов ◽  
A. Ivashov ◽  
Ю. Мандра ◽  
J. Mandra ◽  
Д. Зайцев ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Uniaxial Compression ◽  
Adhesive Strength ◽  
Deformation Behavior ◽  
Physical And Mechanical Properties ◽  
Deformation Curve ◽  
Strength Characteristics ◽  
Adhesive Compound ◽  
The Difference

<p>In a comparison of the deformation behavior in uniaxial compression Filtek Ultimate adhesive connection with the creation and without adhesive compound. Describes the changes in the deformation behavior of each deformation curve. It is shown that the compound alters the adhesive strength characteristics of the sample due to the difference of Poisson’s ratio of the materials. </p>

Severe plastic deformation of Al-1%Cu Alloy processed by a Simple Cyclic Extrusion Compression technique

2018 ◽  
Vol 1 (1) ◽  
pp. 77-90
Author(s):  
Walaa Abdelaziem ◽  
Atef Hamada ◽  
Mohsen A. Hassan
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Deformation Behavior ◽  
Cast Alloy ◽  
Surface Hardness ◽  
Grain Structure ◽  
Compression Technique ◽  
Cu Alloy ◽  
Cyclic Extrusion Compression

Severe plastic deformation is an effective method for improving the mechanical properties of metallic alloys through promoting the grain structure. In the present work, simple cyclic extrusion compression technique (SCEC) has been developed for producing a fine structure of cast Al-1 wt. % Cu alloy and consequently enhancing the mechanical properties of the studied alloy. It was found that the grain structure was significantly reduced from 1500 µm to 100 µm after two passes of cyclic extrusion. The ultimate tensile strength and elongation to failure of the as-cast alloy were 110 MPa and 12 %, respectively. However, the corresponding mechanical properties of the two pass CEC deformed alloy are 275 MPa and 35%, respectively. These findings ensure that a significant improvement in the grain structure has been achieved. Also, cyclic extrusion deformation increased the surface hardness of the alloy by 49 % after two passes. FE-simulation model was adopted to simulate the deformation behavior of the material during the cyclic extrusion process using DEFORMTM-3D Ver11.0. The FE-results revealed that SCEC technique was able to impose severe plastic strains with the number of passes. The model was able to predict the damage, punch load, back pressure, and deformation behavior.

Strain-Rate Dependent Deformation Behavior in WC-10 wt%Ni 3Al Cermet Micropillars Under Uniaxial Compression

2019 ◽  
Author(s):  
Minai Zhang ◽  
Xin Wang ◽  
Alexander D. Dupuy ◽  
Julie M. Schoenung ◽  
Xiaoqiang Li
Keyword(s):  
Strain Rate ◽  
Uniaxial Compression ◽  
Deformation Behavior ◽  
Rate Dependent

Effect of a Fluid on the Deformation Behavior of Human Dentin during Diametral Compression

2020 ◽  
Vol 2020 (10) ◽  
pp. 1177-1181
Author(s):  
A. V. Kabanova ◽  
D. V. Zaitsev ◽  
S. S. Grigor’ev ◽  
P. E. Panfilov
Keyword(s):  
Deformation Behavior ◽  
Diametral Compression ◽  
Human Dentin

Mechanical properties and deformation behavior of Ti–5Cr–xFe alloys

2009 ◽  
Vol 472 (1-2) ◽  
pp. 546-550 ◽  
Author(s):  
Wen-Fu Ho ◽  
Chang-Hung Pan ◽  
Shih-Ching Wu ◽  
Hsueh-Chuan Hsu
Keyword(s):  
Mechanical Properties ◽  
Deformation Behavior
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