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Keywords: neutron diffraction
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. December 2014, 136(6): 061403.
Paper No: PVT-13-1024
Published Online: September 4, 2014
... calibrated using an infrared imaging and thermocouples. The residual stress distributions were calculated using abaqus [ 20 ] in 3D models. The validation of the simulation was verified through neutron diffraction. In spite of the above research progress, however, further efforts are still needed...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2012, 134(1): 011501.
Published Online: December 22, 2011
... of the pressure vessel at a cost of induced strain. Two techniques were employed to determine the residual stress state of the clad steel cylinders: neutron diffraction and mechanical slitting. Neutron diffraction is typically nondestructive; however, due to attenuation along the beam path, the cylinders had...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011502.
Published Online: January 4, 2010
... 07 2009 04 01 2010 04 01 2010 heat treatment internal stresses neutron diffraction plates (structures) stress measurement stress-strain relations welding welds neutron diffraction synchrotron diffraction residual stress welding beads-on-plate postweld heat...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2009, 131(4): 041401.
Published Online: May 15, 2009
..., and normal residual stress distributions were then characterized across the weld cross section by neutron diffraction. It was found that tensile stresses along the welding direction can be reduced or even replaced with compressive stresses if the transformation temperature is lowered sufficiently...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. November 2008, 130(4): 041403.
Published Online: August 22, 2008
... finite-element studies. The residual stress in the vicinity of the notch root has been measured using neutron diffraction and the results compared with those obtained from finite-element analysis. The effect of stress redistribution due to creep has been examined and it is found that a significant...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. November 2006, 128(4): 638–643.
Published Online: January 22, 2006
... distribution on a small scale (in the order of millimeters) can be important. In this paper, the neutron diffraction technique is used which while it is a very expensive technique, is capable of nondestructively measuring residual stresses at this scale up to a depth of 35 mm . The investigation reported...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Pressure Vessel Technol. August 2003, 125(3): 305–308.
Published Online: August 1, 2003
...R. R. de Swardt A comparative study to map the residual strain/stress states through the walls of autofrettaged thick-walled high-strength steel cylinders has been conducted with neutron diffraction, Sachs boring, and the compliance methods. Test samples with different wall thickness ratios were...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Pressure Vessel Technol. August 2003, 125(3): 274–276.
Published Online: August 1, 2003
...R. R. de Swardt During a recent study the residual strain/stress states through the walls of autofrettaged thick-walled high-strength steel cylinders were measured with neutron diffraction, Sachs boring and the compliance methods (Venter et al., 2000, J. Strain Anal. Eng. Des., 35 , pp. 459–469...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Pressure Vessel Technol. August 2002, 124(3): 366–370.
Published Online: July 26, 2002
... in the vicinity of notches. Neutron-diffraction strain measurements are non-destructive and capable of tracking the development of the elastic strain field as a function of applied load in a single specimen. This paper presents two demonstrations of neutron-diffraction strain-scanning with high spatial resolution...