scholarly journals Determination of Stress Free Temperature in Composite Laminates for Residual Stress Modeling

2018 ◽  
pp. 295-298
Author(s):  
Brian T. Werner ◽  
Helena Jin ◽  
Timothy M. Briggs
Keyword(s):  
Residual Stress ◽  
Composite Laminates ◽  
Stress Modeling ◽  
Residual Stress Modeling

scholarly journals Residual Stress Modeling with Phase Transformation for Wire Arc Additive Manufacturing of B91 Steel

JOM ◽  
2020 ◽  
Vol 72 (12) ◽  
pp. 4178-4186
Author(s):  
Xavier Jimenez ◽  
Wen Dong ◽  
Santanu Paul ◽  
Michael A. Klecka ◽  
Albert C. To
Keyword(s):  
Residual Stress ◽  
Phase Transformation ◽  
Additive Manufacturing ◽  
Stress Modeling ◽  
Wire Arc Additive Manufacturing ◽  
Residual Stress Modeling

Residual stress modeling in minimum quantity lubrication grinding

2015 ◽  
Vol 83 (5-8) ◽  
pp. 743-751 ◽  
Author(s):  
Yamin Shao ◽  
Omar Fergani ◽  
Beizhi Li ◽  
Steven Y. Liang
Keyword(s):  
Residual Stress ◽  
Minimum Quantity Lubrication ◽  
Minimum Quantity ◽  
Stress Modeling ◽  
Residual Stress Modeling

Residual Stress Modeling in Aluminum Wrought Alloys

2013 ◽  
pp. 25-30
Author(s):  
Bowang Xiao ◽  
Qigui Wang ◽  
Cherng-Chi Chang ◽  
Josie E Rewald
Keyword(s):  
Residual Stress ◽  
Stress Modeling ◽  
Residual Stress Modeling

Determination of residual stress and thermal history for IM7/977-2 composite laminates

2005 ◽  
Vol 65 (13) ◽  
pp. 2014-2024 ◽  
Author(s):  
William A. Schulz ◽  
Donald G. Myers ◽  
Tom N. Singer ◽  
Peter G. Ifju ◽  
Raphael T. Haftka
Keyword(s):  
Residual Stress ◽  
Thermal History ◽  
Composite Laminates

Welding Residual Stress Modeling Benchmark Comparison Study

2011 ◽  
Author(s):  
B. Good ◽  
C. Ng ◽  
W. Bamford ◽  
J. Broussard
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Welding Residual Stress ◽  
Stress Distributions ◽  
Outlet Nozzle ◽  
Reactor Coolant ◽  
Dissimilar Metal ◽  
Stress Modeling ◽  
The Impact ◽  
Residual Stress Modeling

Welding residual stress modeling is currently performed by researchers around the world using a wide variety of modeling methods to predict the final stress state of a completed weld. Among the key modeling assumptions used to perform a residual stress simulation are: • The geometric setup of the model, including boundary condition and assumptions. • The thermal and structural model simulating the welding process including lumping of weld passes. • The strain hardening input properties and hardening law. Researchers from Dominion Engineering, Inc. (DEI) and Westinghouse Electric Co. (WEC) have performed a benchmark comparison studying these key modeling assumptions and their results on the predicted welding residual stress distributions. Researchers from DEI and WEC have completed independent studies to validate their respective methods for calculating residual weld stress. In addition to the comparative evaluation, brief descriptions of the individual validations will be included in this paper. The weldment selected for evaluation is a typical reactor pressure vessel (RPV) outlet nozzle dissimilar metal safe end weld in a pressurized water reactor plant. This weld joins a low alloy steel nozzle to a stainless steel safe end using Alloy 182 weld material; this weld is completed in the manufacturing shop. The safe end is then field welded to the stainless steel reactor coolant loop piping. The residual stress distributions in the dissimilar metal welds, like the one selected, are important in predicting stress corrosion crack growth in Reactor Coolant System (RCS) components. The fabrication drawings for the selected RPV outlet nozzle were provided to both organizations, and independent residual stress simulations were performed using the best effort modeling techniques from each organization. This paper investigates the impact of the key modeling assumptions described above on the differences in the predicted welding residual stress distributions between the two simulation techniques. The results from the modeling comparison are provided in this paper.

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