A new integrated photoelasticity method for axisymmetric stress distribution

1987 ◽  
Vol 27 (1) ◽  
pp. 31-36 ◽  
Author(s):  
P. B. Godbole ◽  
U. M. Chaudhari ◽  
S. K. Bhave
Keyword(s):  
Stress Distribution ◽  
Axisymmetric Stress ◽  
Photoelasticity Method ◽  
Integrated Photoelasticity

Photoelastic Analysis on Different Retention Methods of Implant-Supported Prosthesis

2015 ◽  
Vol 41 (3) ◽  
pp. 258-263 ◽  
Author(s):  
Angélica Castro Pimentel ◽  
Marcello Roberto Manzi ◽  
Cristiane Ibanhês Polo ◽  
Claudio Luiz Sendyk ◽  
Maria da Graça Naclério-Homem ◽  
...  
Keyword(s):  
Stress Distribution ◽  
Axial Load ◽  
Testing Machine ◽  
Compressive Load ◽  
Lower Intensity ◽  
Photoelasticity Method ◽  
Universal Testing ◽  
Isochromatic Fringes ◽  
Photoelastic Analysis ◽  
Compressive Axial Load

The aim of this study was to evaluate the stress distribution of different retention systems (screwed, cemented, and mixed) in 5-unit implant-supported fixed partial dentures through the photoelasticity method. Twenty standardized titanium suprastructures were manufactured, of which 5 were screw retained, 5 were cement retained, and 10 were mixed (with an alternating sequence of abutments), each supported by 5 external hexagon (4.0 mm × 11.5 mm) implants. A circular polariscope was used, and an axial compressive load of 100 N was applied on a universal testing machine. The results were photographed and qualitatively analyzed. We observed the formation of isochromatic fringes as a result of the stresses generated around the implant after installation of the different suprastructures and after the application of a compressive axial load of 100 N. We conclude that a lack of passive adaptation was observed in all suprastructures with the formation of low-magnitude stress in some implants. When cemented and mixed suprastructures were subjected to a compressive load, they displayed lower levels of stress distribution and lower intensity fringes compared to the screwed prosthesis.

scholarly journals The Axisymmetric Stress Distribution in an Infinite Elastic Solid Containing a Flat Annular Crack under Torsion

1976 ◽  
Vol 19 (134) ◽  
pp. 857-862 ◽  
Author(s):  
Toshikazu SHIBUYA ◽  
Takashi KOIZUMI ◽  
Ichiro NAKAHARA
Keyword(s):  
Stress Distribution ◽  
Elastic Solid ◽  
Axisymmetric Stress ◽  
Annular Crack

Numerical solution of axisymmetric-stress problems by point matching

1970 ◽  
Vol 5 (1) ◽  
pp. 25-37 ◽  
Author(s):  
C J Hooke
Keyword(s):  
Stress Distribution ◽  
Computer Programme ◽  
Body Of Revolution ◽  
Axisymmetric Stress ◽  
Point Matching ◽  
Wide Range ◽  
Matching Technique ◽  
Plane Elastic Problems ◽  
General Computer ◽  
Good Agreement

In a previous paper the author described the application of the point-matching technique to the solution of plane elastic problems. It was shown that it is possible to produce a single computer programme capable of analysing a wide range of such problems. The technique is extended in this paper to the case of an axisymmetrically loaded elastic body of revolution. The details of the technique are necessarily more complicated in the present instance but it has proved possible to develop a general computer programme for this type of problem. The application of the method is illustrated for a number of problems for which approximate or experimental results are available. Good agreement between these results and the point-matched stress distribution is obtained in every case.

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