Materials Science Forum, Vol.347-3, 178-182, 2000
NQR spectrometry, a new tool for the measurement of residual stresses?
A theory for NQR spectra of polycrystalline materials in an arbitrary tri-axial stress state is presented. Distributions of NQR frequencies for a nucleus in an axi-symmetrical electric field gradient in several stress states have been calculated using a Monte Carlo technique.
Keywords:Monte Carlo simulation;non-destructive testing;nuclear quadrupole resonance;polycrystalline materials;residual stresses