Micro-Raman study of thermoelastic stress distribution in oxidized silicon membranes and correlation with finite element modeling

1997 ◽  
Vol 46 (1-3) ◽  
pp. 24-28 ◽  
Author(s):  
Y. Guyot ◽  
C. Malhaire ◽  
M. Le Berre ◽  
B. Champagnon ◽  
A. Sibai ◽  
...  
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Modeling ◽  
Thermoelastic Stress ◽  
Element Modeling ◽  
Raman Study ◽  
Silicon Membranes

Pressure-Containing Sleeve Alternatives

2006 ◽  
Author(s):  
Robert B. Lazor ◽  
Brock Bolton ◽  
Julian Florez ◽  
Carlos Nieves
Keyword(s):  
Finite Element ◽  
Stress Concentration ◽  
Stress Distribution ◽  
Finite Element Modeling ◽  
Operating Pressure ◽  
Element Modeling ◽  
Expected Performance ◽  
Contour Plots ◽  
Steel Grades ◽  
Different Thickness

The work described in this paper was completed to assess the expected performance of various repair sleeve configurations on an NPS 30, Grade X70 pipeline. A total of ten sleeve variations were studied, and these included sleeve-on-pipe, sleeve-over-collar, and sleeve-over-double collar configurations. The comparisons were based on the stress results of axisymmetric finite element modeling of the sleeve geometries, and included examining sleeves with different thickness, models with and without a gap between the sleeve and the pipe, and cases in which the annulus between the sleeves and pipe were either pressurized or not pressurized. Complementary tasks involved with this work included the specification of recommended epoxy materials and steel grades for reinforcing sleeves. The results of the analyses are presented in terms of contour plots of stress at the maximum operating pressure of the pipe, showing the general stress distribution and indicating areas of stress concentration. This study demonstrates how the loads vary amongst the different sleeve types, and shows how variations in geometry and loading conditions between models affect the operating stresses.

Finite Element Modeling of Stress Distribution in Intervertebral Spacers of Different Surface Geometries

2013 ◽  
Vol 37 (11) ◽  
pp. 1014-1020 ◽  
Author(s):  
Jae Hyup Lee ◽  
Myong-Hyun Baek ◽  
Young Eun Kim ◽  
Jun-Hyuk Seo ◽  
Dong Ryul Song ◽  
...  
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Modeling ◽  
Element Modeling

scholarly journals Finite Element Modeling and Simulation of Machining of Titanium Alloy and H13 Tool Steel Using PCBN Tool

2013 ◽  
Vol 392 ◽  
pp. 36-40 ◽  
Author(s):  
S. Sulaiman ◽  
A. Roshan ◽  
S. Borazjani
Keyword(s):  
Finite Element ◽  
Titanium Alloy ◽  
High Temperature ◽  
Stress Distribution ◽  
Finite Element Modeling ◽  
Tool Steel ◽  
Metal Cutting ◽  
Cutting Tool ◽  
Tool Material ◽  
Element Modeling

This paper deals with finite element modeling (FEM) and simulation of machining of titanium alloy and H-13 tool steel. Titanium alloys are very suitable for airframe manufacture and aircraft as H-13 uses forging dies and machined die casting. The machinability of both metals was evaluated by high temperature and tool wear. Finite element simulation was performed with ABAQUS explicit software to predict cutting temperature and stress distribution during metal cutting process. The purpose of this study was evaluation the performance of PCBN cutting tool material on machining of titanium alloy and H-13. It was found that PCBN tool can resistant well against high thermal shocks, high temperature and stress distribution when machining difficult to cut materials. The results can give a better understanding of cutting tool material for metal cutting process.

Sign in / Sign up

Export Citation Format

Share Document