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Title: Effects of cutting and specimen size on neutron measurement of residual stresses
Authors: Law, M
Luzin, V
Kirstein, O
Keywords: Samplers
Residual Stresses
Measuring Methods
Neutron Diffractometers
Neutron Diffraction
Issue Date: 16-Dec-2010
Publisher: Insitute of Physics
Citation: Law, M., Luzin, V., Kirstein, O. (2010). Effects of cutting and specimen size on neutron measurement of residual stresses, Journal of Physics: Conference Series, International Conference on Neutron Scattering 2009, 3th–7th May 2009. Knoxville, Tennessee, USA, 251(1), Art. No. 012044.
Abstract: To perform neutron residual stress measurements it is often necessary to cut samples to a manageable size. The effects of cutting a girth welded pipe were investigated with analytical methods and finite element analysis. The effect of cutting on measured stresses was calculated. A simplified method of modelling residual stresses in welds, "chill modelling", is introduced. In ring slitting a cut is made in the axial direction and the deformation is maeesured. The change in elastic stress can be calculated and added to neutron diffraction measurements made on a cut ring to calculate the original stresses. Residual stress measurements were performed to validate the ring slitting correction using ANSTO's residual stress diffractometer Kowari. © 2010, Insitute of Physics.
ISSN: 1742-6597
Appears in Collections:Conference Publications

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