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|Title:||On the measurement of sub-surface residual stresses in SS 304L welds by dry ring core technique|
|Keywords:||Dry ring core|
|Abstract:||Sub surface residual stresses in thick multi-pass stainless steel butt welded joints were measured by dry ring core technique. To accomplish the task of dry ring coring, special tools were developed such that machining induced stresses were negligible. Established equations, analytical methods and regression correlations were used in the measurement. A database of mathematical relations of residual stress values was also developed using the response surface methodology. A 3-D finite element (FE) model was used to prepare the residual stress field data at the different stress ratios at various depths of the welded joints. Further, this data was used to develop the regression equations as well as to determine the calibration coefficients. � 2017 Elsevier Ltd|
|Appears in Collections:||Research Publications|
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