scholarly journals Experimental determination of residual stresses in roll expanded joints in CANDU® nuclear reactors

2013 ◽  
Author(s):  
William Paley
Keyword(s):  
Residual Stresses ◽  
Experimental Determination ◽  
Nuclear Reactors

A Method for the Experimental Determination of Residual Stresses in Axisymmetric Composite Cylinders

1992 ◽  
Vol 114 (1) ◽  
pp. 90-96 ◽  
Author(s):  
F. G. Rammerstorfer ◽  
F. D. Fischer
Keyword(s):  
Residual Stresses ◽  
Experimental Determination ◽  
Arbitrary Number ◽  
Analytical Procedure ◽  
Circular Cylinders ◽  
Composite Cylinders ◽  
Long Cylinder

An analytical procedure applicable for the experimental determination of initially existing residual stresses in long composite circular cylinders is derived within the framework of the drilling and turning technique. The method is demonstrated for a long cylinder composed of two different materials. An extension to cylinders composed of an arbitrary number of circular cylindrical layers can easily be derived in analogy to the described procedures.

Residual Stresses Generated by the Combined Burnishing - Cutting Process in the Worked Parts

2014 ◽  
Vol 657 ◽  
pp. 103-107 ◽  
Author(s):  
Gheorghe Brabie ◽  
Gheorghe Mustea ◽  
Bogdan Chirita
Keyword(s):  
Magnesium Alloy ◽  
Residual Stresses ◽  
Experimental Determination ◽  
Experimental Investigations ◽  
Machined Surface ◽  
Combined Process ◽  
Part Surface ◽  
Working Parameters ◽  
Compressive Residual Stresses

The cutting followed by burnishing, used like a combined process, leads to the improvement of the part surface quality (roughness, hardness, microstructure etc.) and to reduction of the costs and manufacturing times as a function of different working parameters. One of the factors and parameters that characterize the machined surface by this combined process is the residual stresses that are generated and located in the part deformed strata. The present paper analyses the results concerning the experimental determination of the residual stresses generated in the machined surfaces of parts made from magnesium alloy by the burnishing - turning combined process. The experimental investigations have shown that in the machined strata the combined process determines the occurrence of the compressive residual stresses and hence the fatigue and cracking resistances of the machined materials will be improved.

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