A new procedure based on Sachs' boring for measuring non-axisymmetric residual stresses

Sachs' boring is an established technique for the measurement of axisymmetr ic residual stresses in cylindrical components. There are however important cases where non-axisymmetric residual stresses need to be found. In this p aper a new procedure is developed to measure non-axisymmetric residual stre sses. The essential feature of the new procedure is the use of a Fourier se ries to represent the residual stresses. The correctness of the new procedu re is demonstrated using a finite element simulation where a set of nonaxis ymmetric residual stresses are determined. Excellent agreement is found bet ween the predicted residual stresses and those derived using a finite eleme nt simulation of the new procedure. (C) 2000 Elsevier Science Ltd. All righ ts reserved.