Residual stresses reconstruction in shot peened specimens containing sharp and blunt notches by experimental measurements and finite element analysis

2016 ◽  
Vol 87 ◽  
pp. 102-111 ◽  
Author(s):  
M. Benedetti ◽  
V. Fontanari ◽  
B. Winiarski ◽  
M. Allahkarami ◽  
J.C. Hanan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Residual Stresses ◽  
Experimental Measurements ◽  
Element Analysis

scholarly journals A simplified engineering method for a T-joint welding simulation

2018 ◽  
Vol 22 (Suppl. 3) ◽  
pp. 867-873 ◽  
Author(s):  
Mato Peric ◽  
Zdenko Tonkovic ◽  
Igor Karsaj ◽  
Dragi Stamenkovic
Keyword(s):  
Thermal Analysis ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Solution ◽  
Residual Stresses ◽  
Mechanical Analysis ◽  
Large Strains ◽  
Experimental Measurements ◽  
Large Displacements ◽  
Element Analysis

In the framework of this study, a hybrid sequential thermo-mechanical finite element analysis of T-joint fillet welding is performed. In the thermal analysis, the element birth and death technique is applied to simulate a weld filler deposition, while a mechanical analysis is performed simultaneously to avoid possible problems due to large displacements induced by large strains. The calculated plate deflections are compared with the experimental measurements while the obtained residual stresses are compared with the analytical solution from the literature. The simulated results demonstrate that the proposed method can be effectively used to predict the residual stresses and distortions induced by the T-joint welding of two plates.

Fast Three-Dimensional Finite Element Analysis of Weld Overlay Application on a Formed Feeder Elbow

2011 ◽  
Author(s):  
Francis H. Ku ◽  
Pete C. Riccardella
Keyword(s):  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Residual Stresses ◽  
Nuclear Reactor ◽  
Three Dimensional ◽  
Fe Method ◽  
Element Analysis ◽  
Weld Overlay ◽  
Welding Processes

This paper presents a fast finite element analysis (FEA) model to efficiently predict the residual stresses in a feeder elbow in a CANDU nuclear reactor coolant system throughout the various stages of the manufacturing and welding processes, including elbow forming, Grayloc hub weld, and weld overlay application. The finite element (FE) method employs optimized FEA procedure along with three-dimensional (3-D) elastic-plastic technology and large deformation capability to predict the residual stresses due to the feeder forming and various welding processes. The results demonstrate that the fast FEA method captures the residual stress trends with acceptable accuracy and, hence, provides an efficient and practical tool for performing complicated parametric 3-D weld residual stress studies.

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