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The technique considered here uses longitudinal waves propagating normal to the plane of stress. Through use of a new method for treating the measurements, the entire residual stress state can be determined. In this case, the speed of propagation through an initially isotropic material is proportional to the sum of the principal stresses. The constant of proportionality is usually determined by...
In this paper, a new method for nondestructively evaluating complete states of plane residual stress is presented. The basic analytical and experimental procedures are reviewed, and results of estimated residual stresses are compared with numerical predictions. Here we examine the application of a nondestructive technique called acoustoelasticity which employs ultrasonic waves in the evaluation...