DEVELOPMENT AND EXPERIMENTAL VALIDATION OF A THREE- DIMENSIONAL MODEL IN FINITE ELEMENTS FOR STRESS ANALYSIS IN AN ENDODONTIC INSTRUMENT

2017 ◽  
Author(s):  
Camilo Mesquita Neto ◽  
Júlio César Moraes Fernandes ◽  
Raquel Midena ◽  
Murilo Alcalde ◽  
Rodrigo Vivan ◽  
...  
Keyword(s):  
Finite Elements ◽  
Stress Analysis ◽  
Experimental Validation ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model

scholarly journals Transient thermal and stress analysis of maxillary second premolar tooth using an exact three-dimensional model

2010 ◽  
Vol 21 (2) ◽  
pp. 158 ◽  
Author(s):  
MaryamAlsadat Hashemipour ◽  
Ali Mohammadpour ◽  
Seiied AbdolrezaGandjalikhan Nassab
Keyword(s):  
Stress Analysis ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Transient Thermal

scholarly journals CALCULATION OF THE CYLINDRICAL WALLED PERFORATED SHELLS.

2015 ◽  
pp. 125-130
Author(s):  
Sergei I Trubachev ◽  
Olga N Аlekseychuk
Keyword(s):  
Numerical Calculation ◽  
Stress Concentration ◽  
Finite Elements ◽  
Strain State ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Equivalent Thickness ◽  
Definition Of ◽  
Perforated Shell

The stress-strain state of thick-walled cylindrical perforated shell under internal pressure is consider. Defined the reduced stiffness of the shell by defining an equivalent thickness. A numerical calculation using solid (3D) and shell finite elements is done. Analyzed stress-straine state of circle perforating holes and the thickness of the wall. Compared the stress-straine state obtained on solid three-dimensional model with the results for a shell with equvivalent stiffness. Were given advice on the definition of strass-straine state by using the eqvivalent stiffness considering stress concentration.

On the Improvement of Calibration Coefficients for Hole-Drilling Integral Method: Part II—Experimental Validation of Calibration Coefficients

2003 ◽  
Vol 125 (2) ◽  
pp. 107-115 ◽  
Author(s):  
Jong-Ning Aoh ◽  
Chung-Sheng Wei
Keyword(s):  
Experimental Validation ◽  
Three Dimensional ◽  
Bending Test ◽  
Hole Drilling ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Fem Model ◽  
Hole Drilling Method ◽  
Drilling Method ◽  
Calibration Coefficients

Experimental validation of the calibration coefficients for integral hole-drilling method obtained from an improved three-dimensional FEM model was achieved using bending test of a cantilever beam. The experimental setup is a simple yet accurate method to validate the calibration coefficients obtained by a three-dimensional FEM model. With this experiment, we also validate the adequacy of the criterion applied for thin or thick plates in a previous work. The relieved stresses calculated from the calibration coefficients of the three-dimensional FEM model were compared with those calculated from two-dimensional model calibration coefficients. The results show that the accuracy of relieved stress calculation has been greatly improved as the calibration coefficients based on a three-dimensional model are used for integral hole-drilling method. Significant error in the residual stress measurement and calculation could be arisen if calibration coefficients for integral hole-drilling method were not chosen correctly for corresponding thin plate or thick plate cases according the results of the bending test of cantilever beam. A transitional dimensionless thickness was proposed by examining the calculated relieved stresses obtained from the calibration coefficients for different plate thickness. The probability bounds of relieved stress corresponding to both cases were also calculated to further reveal the improvement of the calibration coefficients obtained from the three-dimensional model.

A three-dimensional model of CdZnTe gamma-ray detector and its experimental validation

2004 ◽  
Vol 51 (5) ◽  
pp. 2419-2426 ◽  
Author(s):  
F. Mathy ◽  
A. Gliere ◽  
E.G. d'Aillon ◽  
P. Masse ◽  
M. Picone ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Gamma Ray ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Gamma Ray Detector

Untersuchungen zum thermischen Fließbohren*/Investigations on thermal flow drilling – Three-dimensional modelling and simulation with experimental validation

2018 ◽  
Vol 108 (10) ◽  
pp. 724-729
Author(s):  
E. Özkaya ◽  
S. Hannich ◽  
D. Biermann
Keyword(s):  
Experimental Validation ◽  
Three Dimensional ◽  
Modelling And Simulation ◽  
Thermal Flow ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Simulation Results ◽  
Temperature Force ◽  
Flow Drilling ◽  
Eine Verbesserte

In diesem Beitrag wird das Fließbohren von AlSi10Mg mit zwei unterschiedlichen Werkzeugtemperaturen untersucht. Für die Erzielung eines tieferen Prozessverständnisses wird ein dreidimensionales Modell aufgebaut und die Simulationsergebnisse mit den experimentellen Werten der Temperatur, Kraft sowie Drehmoment validiert. Im Vergleich zum nicht temperierten Werkzeug kann mit dem vorgeheizten Fließbohrer eine verbesserte Bohrungsqualität erreicht werden.   This paper investigates the flow drilling of AlSi10Mg with two different initial tool temperatures. To achieve a deeper understanding of the process, a three-dimensional model was developed and the simulation results were validated with experimentally determined values for temperature, force and torque. Compared to the non-heated tool, the pre-heated flow drill led to a better borehole quality.

scholarly journals Study of Electric charge induction with a three-dimensional model using the finite elements method

2018 ◽  
Vol 41 (1) ◽  
Author(s):  
Alexandre de Resende Camara ◽  
Zeila Virginia Torres Santos ◽  
Clara Johanna Pacheco ◽  
Marcos Vinicius Colaço Gonçalves
Keyword(s):  
Finite Elements ◽  
Electric Charge ◽  
Three Dimensional ◽  
Finite Elements Method ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Charge Induction
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