The finite element analysis of the effect of ferrule height on stress distribution at post-and-core-restored all-ceramic anterior crowns

2008 ◽  
Vol 13 (2) ◽  
pp. 223-227 ◽  
Author(s):  
Oğuz Eraslan ◽  
Filiz Aykent ◽  
M. Tolga Yücel ◽  
Serhan Akman
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
All Ceramic ◽  
Post And Core

scholarly journals Full Contoured Tooth-Implant Supported 3-Pointic All-Ceramic Denture During Occlusal Load Transfer in Lateral Region

2016 ◽  
Vol 61 (2) ◽  
pp. 843-846 ◽  
Author(s):  
J. Żmudzki ◽  
P. Malara ◽  
G. Chladek
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bone Tissue ◽  
Load Transfer ◽  
Element Analysis ◽  
Lateral Region ◽  
The Finite Element Analysis ◽  
All Ceramic ◽  
Dental Professional ◽  
Wide Zone

Abstract Implant and a tooth supported dentures are avoided by dentists because of uneven distribution of occlusal loads between a stiffer implant and a more pliable tooth. The hypothesis was that a 3-point all-ceramic bridge supported on a natural second premolar tooth and a two-pieces typical implant bears safely mastication loads. The finite element analysis showed that the implant splinted by all-ceramic zirconium bridge with the second premolar was safe under lateral mastication load, but there was found an overload at wide zone of bone tissue around the implant under the load of 800 N. The patients can safely masticate, but comminution of hard food should be avoided and they should be instructed that after such an indiscretion they need to contact a dental professional, because, in spite of integrity of the prosthesis, the bone tissue around the implant may fail and there is a hazard of intrusion of the tooth.

scholarly journals Three-Dimensional Finite Element Analysis of the Veneer—Framework Thickness in an All-Ceramic Implant Supported Fixed Partial Denture

Ceramics ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 199-207
Author(s):  
Lohitha Kalluri ◽  
Bernard Seale ◽  
Megha Satpathy ◽  
Josephine F. Esquivel-Upshaw ◽  
Yuanyuan Duan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Three Dimensional ◽  
Ct Scanner ◽  
Element Analysis ◽  
Partial Denture ◽  
Fixed Partial Denture ◽  
Occlusal Surfaces ◽  
All Ceramic

This study was performed as an adjunct to an existing clinical study to validate the effect of veneer: framework thickness ratio on stress distribution in an implant-supported all-ceramic fixed partial denture. Two commercially available titanium dental implants with corresponding customized abutments and a patient-retrieved all-ceramic fixed partial denture were scanned using a high-resolution micro-CT scanner. Reconstructed 3D objects, along with a simulated bone surface, were incorporated into a non-manifold assembly and meshed simultaneously using Simpleware software (Synopsys Simpleware ScanIP Version P-2019.09; Mountain View, CA). Three such volume meshes (Model A, Model B, Model C) corresponding to veneer: framework thickness ratios of 3:1, 1:1, and 1:3 respectively were created, and exported to a finite element analysis software (ABAQUS). An axial load of 110 N was applied uniformly on the occlusal surfaces to calculate the static stresses and contour plots were generated in the post-processing module. From the data obtained, we observed optimum stress distribution in Model B. Also, the tensile stresses were concentrated in the posterior connector region of the prosthesis in all three models tested. Within the limitations of this study, we can conclude that equal thickness of veneer and framework layers would aid in better stress distribution.

The Finite Element Analysis on the Compression Splicing Position of Strain Clamp in Guy Tower

2014 ◽  
Vol 680 ◽  
pp. 249-253
Author(s):  
Zhang Qi Wang ◽  
Jun Li ◽  
Wen Gang Yang ◽  
Yong Feng Cheng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Model ◽  
Equivalent Stress ◽  
Element Model ◽  
Element Analysis ◽  
Elastic Plastic ◽  
The Finite Element Analysis

Strain clamp is an important connection device in guy tower. If the quality of the compression splicing position is unsatisfied, strain clamp tends to be damaged which may lead to the final collapse of a guy tower as well as huge economic lost. In this paper, stress distribution on the compressible tube and guy cable is analyzed by FEM, and a large equivalent stress of guy cable is applied to the compression splicing position. During this process, a finite element model of strain clamp is established for guy cables at compression splicing position, problems of elastic-plastic and contracting are studied and the whole compressing process of compressible position is simulated. The guy cable cracks easily at the position of compressible tube’s port, the inner part of the compressible tube has a larger equivalent stress than outside.

Finite Element Analysis of Composite-Concrete Adhesion

2002 ◽  
Author(s):  
Eyassu Woldesenbet ◽  
Haftay Hailu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Load Transfer ◽  
Composite Plates ◽  
Alternative Methods ◽  
Normal Operation ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Cost

The need for the rehabilitation of bridges and structures is becoming more apparent as the number of deficient civil structure grows and the cost of replacement is becoming prohibitive. These leads to the search of alternative methods, such as rehabilitation, to put the deteriorated structures back to normal operation with the least possible cost. One such method is the use of composite plates adhesively bonded to concrete as reinforcement and to prevent the propagation of crack within the concrete structure. In this study the load transfer and the resulting stress distribution in the composite-concrete adhesion system is investigated using the finite element method. The effects of the different bond parameters are studied using the finite element. In addition, results of the finite element analysis are proved to be in agreement with the analytical solution of shear stress distribution in the adhesion layer that was developed in previous studies by the authors.

A Finite Element Analysis in Structural Design of Wall-Troweling Robot

2013 ◽  
Vol 325-326 ◽  
pp. 1083-1086
Author(s):  
Yu Ming Han ◽  
Mei Jing Guo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Static Analysis ◽  
Structural Design ◽  
Research Effort ◽  
Virtual Prototype ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Design And Manufacturing

The troweling of wall space is an essential decorative process and the development of wall-troweling robots, which are expected to release labors from the burdensome pargeting tasks, is growing to be a promising sector in todays architectural industry. In this paper, a static analysis is conducted for the key components of troweling disk and vertical guiderail, based on the proposed virtual prototype of wall-troweling robots. The stress distribution across these components provides a sound basis for the structural design. With the finite element analysis module of SolidWorks package, the paper investigates the modal characteristics of the key components operating under practical conditions. The research effort in this paper is contributive to the design and manufacturing of wall-troweling robots.

Finite Element Analysis of Cold Expanding of Hollow Thin-Wall Tube

2011 ◽  
Vol 460-461 ◽  
pp. 44-47
Author(s):  
Wei Hua Kuang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Equivalent Stress ◽  
Element Model ◽  
Thin Wall ◽  
Forming Process ◽  
Element Analysis ◽  
Simulation Step ◽  
The Finite Element Analysis

The cold expanding diameter process was simulated by the software of DEFORM. The finite element model of tube and dies were built. The object position definition, the inter object setting, movement definition and simulation step were correctly set. The deformation, total velocity distribution and equivalent stress distribution were predicted. The numerical simulation results showed that the finite element analysis could exactly describe the plastic deformation and stress distribution during the forming process.

The Finite Element Analysis of Vacuum Leak Detection Container

2015 ◽  
Vol 777 ◽  
pp. 143-147
Author(s):  
Li Chen Sun ◽  
Qi Liu ◽  
Jin Ming Chen ◽  
Guo Feng Wang ◽  
Dong Hui Meng ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Leak Detection ◽  
Small Satellite ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Sealing Ring ◽  
Different Parts

According to the requirement of vacuum leak detection container for small satellite, a set of vacuum leak detection container is developed. This paper discuss the design of model and the finite element analysis of different models. Through calculating the variation of the displacement X, Y, Z and the stress distribution of different parts and the rotation Z of the door flange and casing flange, determining whether the deflection of flange under internal vacuum will cause the sealing ring the fall of the sealing effect.

The Finite Element Analysis Concerning the Slip Coat of Workover Rig

2013 ◽  
Vol 483 ◽  
pp. 297-300
Author(s):  
Jia Qi Jin ◽  
Ye Yuan ◽  
Xian Rong Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Static Analysis ◽  
Allowable Stress ◽  
Element Analysis ◽  
Finite Element Software ◽  
The Finite Element Analysis ◽  
Lifting System

Based on the finite element analysis of the slip coat in the compulsory lifting system of hyper-thermal snubbing operation injected by steam, the static analysis with regard to the slip coat is undoubtedly employed taking advantage of the finite element software. And then, the failure forms are deduced and the maximum allowable stress is calculated by analyzing the stress distribution.

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