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|Title: ||Spatially resolved materials property data from a uniaxial cross-weld tensile test.|
|Authors: ||Turski, M|
|Issue Date: ||Dec-2009|
|Publisher: ||American Society of Mechanical Engineers (ASME)|
|Citation: ||Turski, M., Smith, M. C., Bouchard, P. J., Edwards, L., & Withers, P. J. (2009). Spatially resolved materials property data from a uniaxial cross-weld tensile test. Journal of Pressure Vessel Technology-Transactions of the ASME, 131(6), 7.|
|Abstract: ||Application of electronic speckle pattern interferometry (ESPI) is described to measure the spatial variation in monotonic tensile stress-strain properties along “cross-weld” specimens machined from a stainless steel three-pass welded plate. The technique, which could also be done with digital image correlation, was applied to quantify how the material 0.2%, 1%, 2%, 5%, 10%, and 20% proof stress varied with distance from the center-line of the weldment for parent and weld material associated with the first and final passes. The stress-strain curves measured by the ESPI method correlated closely with stress-strain data measured using conventional test specimens. The measured results are consistent with the hypothesis that thermo-mechanical cycles associated with the welding process work harden previously deposited (single-pass) weld metal and the surrounding parent material. The stress-strain response of the heat affected zone adjacent to the first weld pass is consistent with an accumulated (equivalent monotonic) plastic strain of 6.5% and that of the first pass weld bead was consistent with an accumulated plastic strain of approximately 4% greater than the state of the final pass weld metal. © 2009, American Society of Mechanical Engineers (ASME)|
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