TY - JOUR
T1 - MEASURING MULTIPLE RESIDUAL-STRESS COMPONENTS USING CONTOUR METHOD AND MULTIPLE CUTS
AU - Zuccarello, Bernardo
AU - Pagliaro, Pierluigi
PY - 2010
Y1 - 2010
N2 - The conventional contour method determines one component of residual stress over the cross section of a part. The part is cut into two, the contour (topographic shape) of the exposed surface is measured, and Bueckner’s superposition principle is analytically applied to calculate stresses. In this paper, the contour method is extended to the measurement of multiple residual-stress components by making multiple cuts with subsequent applications of superposition. The theory and limitations are described. The theory is experimentally tested on a 316L stainless steel disk with residual stresses induced by plastically indenting the central portion of the disk. The multiple-cut contour method results agree very well with independent measurements using neutron diffraction and with a computational, finite-element model of the indentation process.
AB - The conventional contour method determines one component of residual stress over the cross section of a part. The part is cut into two, the contour (topographic shape) of the exposed surface is measured, and Bueckner’s superposition principle is analytically applied to calculate stresses. In this paper, the contour method is extended to the measurement of multiple residual-stress components by making multiple cuts with subsequent applications of superposition. The theory and limitations are described. The theory is experimentally tested on a 316L stainless steel disk with residual stresses induced by plastically indenting the central portion of the disk. The multiple-cut contour method results agree very well with independent measurements using neutron diffraction and with a computational, finite-element model of the indentation process.
KW - Residual stress measurement - Contour method - Multiaxial stress - Neutron diffraction - Bueckner’s principle - Finite element method
KW - Residual stress measurement - Contour method - Multiaxial stress - Neutron diffraction - Bueckner’s principle - Finite element method
UR - http://hdl.handle.net/10447/46094
M3 - Article
VL - 2010
SP - 187
EP - 194
JO - Experimental Mechanics
JF - Experimental Mechanics
SN - 0014-4851
ER -