305 Effect of Abutment Diameter on Stress Distribution of Implant Upper Structure by Stress Freezing Method

2011 ◽  
Vol 2011 (0) ◽  
pp. 64-65
Author(s):  
Tomohiro Kawasaki ◽  
Tsutomu Ezumi
Keyword(s):  
Stress Distribution ◽  
Freezing Method ◽  
Stress Freezing Method

Simulation of Three-Dimensional Stress Distribution in Compression Dies

2008 ◽  
Vol 575-578 ◽  
pp. 449-454
Author(s):  
Chu Yun Huang ◽  
Sai Yu Wang ◽  
Tao Yang ◽  
Xu Dong Yan
Keyword(s):  
Stress Distribution ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Distribution Model ◽  
Extrusion Dies ◽  
Maximum Value ◽  
Multiple Unit ◽  
Stress Freezing Method ◽  
Experimental Values ◽  
Aided Design

The stress fields of rectangular and T shape compression dies were simulated by three dimensional photo-elasticity of stress freezing method. The rules of stress distribution of σx, σy, σz on the surface of rectangular and T-shaped dies were discovered, and the rules were also found inside the dies. The results indicate that the stress distribution of rectangular die is similar to that of T shape die. Obvious stress concentration in corner of die hole was observed. σz rises from die hole to periphery until it achieves maximum value then it diminishes gradually, and σz between die hole and fix diameter zone is higher than it is in other position. At the same time, the equations of stress field of extrusion dies were obtained by curved surface fitting experimental values in every observed point with multiple-unit regression analysis method and orthogonal transforms. These works can provide stress distribution model for die computer aided design and make.

A study on the development of a loading device using a photoelastic stress freezing method for the analysis of o-ring stress

2010 ◽  
Vol 24 (3) ◽  
pp. 693-701 ◽  
Author(s):  
Jeong-Hwan Nam ◽  
Jai-Sug Hawong ◽  
Kyo-Hyoung Kim ◽  
Liu-Yi ◽  
O-Sung Kwon ◽  
...  
Keyword(s):  
Freezing Method ◽  
Loading Device ◽  
Photoelastic Stress ◽  
Stress Freezing Method
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