Modeling and Simulation of Implant-Supported Fixed Partial Dentures Prosthodontic

2009 ◽  
Vol 16-19 ◽  
pp. 1112-1116
Author(s):  
Dong Lei Liu ◽  
Hua Yan ◽  
Zong Bao Shen ◽  
Xin Hua Song ◽  
Xiao Wang
Keyword(s):  
Finite Element ◽  
Modeling And Simulation ◽  
Optimum Design ◽  
Theoretical Models ◽  
Finite Element Models ◽  
Sectional Area ◽  
Positive Effect ◽  
Maximum Stresses

The theoretical models and finite element models of implant-supported fixed partial dentures and surrounding osseous tissues were founded. It was studied of the influence of connector sectional area on implant-supported fixed partial dentures and surrounding osseous tissues. The results indicate that increasing the connector sectional areas to some extent has positive effect on fixed bridge itself. But the maximum stresses in some regions of surrounding osseous tissues increase as the connector sectional areas increase, the change extent is smaller comparatively. The study provides biomechanics evidence for the optimum design of implant-supported fixed partial dentures.

Two Welding Models Application on Fatigue Analysis for Front Sub-Frame

2011 ◽  
Vol 63-64 ◽  
pp. 431-434
Author(s):  
Jiang Tao Xu ◽  
Rui Xia Guo
Keyword(s):  
Finite Element ◽  
Optimum Design ◽  
Simulation Analysis ◽  
Spot Weld ◽  
Bench Test ◽  
Test Design ◽  
Finite Element Models ◽  
Test Results ◽  
Seam Weld ◽  
Weld Fatigue

This article firstly established two finite element models of seam weld and spot-weld for the front sub-frame, then used the two models for seam weld and spot weld fatigue simulation analysis, next cooperated with bench test results for verification. After the above steps, we not only found the weak portion of the front sub-frame, but also provide reference for both optimum design and improving the bench test design.

A General Formulation for Designing Interference-Fit Joints With Elastic-Plastic Components

2004 ◽  
Vol 126 (4) ◽  
pp. 737-743 ◽  
Author(s):  
Niccolo` Baldanzini
Keyword(s):  
Finite Element ◽  
Material Characterization ◽  
Iterative Procedure ◽  
Yield Criterion ◽  
Theoretical Models ◽  
Finite Element Models ◽  
Interference Fit ◽  
Wide Applicability ◽  
Elastic Plastic ◽  
Plastic Components

A general approach for designing interference-fit joints constituted of elastic-plastic components is presented. The wide applicability range of the method was achieved removing restrictive assumptions about material characterization and yield criterion, which were included in previous theoretical models. Because of the general approach, the model is solved with an iterative procedure. The theory has been successfully validated by a result comparison with finite element models.

A Finite Element Analysis of the General Rolling Contact Problem for a Viscoelastic Rubber Cylinder

1988 ◽  
Vol 16 (1) ◽  
pp. 18-43 ◽  
Author(s):  
J. T. Oden ◽  
T. L. Lin ◽  
J. M. Bass
Keyword(s):  
Finite Element ◽  
Variational Principles ◽  
Standing Waves ◽  
Rolling Contact ◽  
Finite Element Models ◽  
Viscoelastic Cylinder ◽  
Element Analysis ◽  
Elastic Rubber ◽  
Frictional Effects ◽  
Rough Foundation

Abstract Mathematical models of finite deformation of a rolling viscoelastic cylinder in contact with a rough foundation are developed in preparation for a general model for rolling tires. Variational principles and finite element models are derived. Numerical results are obtained for a variety of cases, including that of a pure elastic rubber cylinder, a viscoelastic cylinder, the development of standing waves, and frictional effects.

Affordable structural optimization for large-size dynamic finite element models

1997 ◽  
Author(s):  
Francois Hemez ◽  
Emmanuel Pagnacco ◽  
Francois Hemez ◽  
Emmanuel Pagnacco
Keyword(s):  
Finite Element ◽  
Structural Optimization ◽  
Finite Element Models ◽  
Dynamic Finite Element ◽  
Large Size

Analisis Kegagalan Boom Crane dan Pencegahannya

2014 ◽  
Vol 10 (1) ◽  
pp. 19
Author(s):  
Elvis Adril ◽  
Nasirwan - ◽  
Tri Wibowo ◽  
Julnaidi -
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Chemical Composition ◽  
Optimum Design ◽  
Root Cause ◽  
Main Equipment ◽  
Hardness Tests ◽  
Photo Documentation ◽  
Crawler Crane ◽  
Boom Crane

Sleeve (Boom) on Crawler Crane is the main equipment that serves the weight at the time of appointment (Hoisting).The problem which is founded is a fracture at the boom while lift 6 Tons of weight while the optimum design of equipment is 50 tons. The aim of this research is to found the root cause of the fracture by using photo documentation fractografi (microfractografi and macrofractografi), and hardness tests, and test the chemical composition at the surface faults boom crane. We used Finite element method (FEM) to form simulated load. The results is that the porblem accured because of error while read the load chart and error in SOP

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