Residual stress theory measurement new NDT.
Preface:
The equipment consists of a vibrometer and a pulse generator at constant energy.
The elastic energy transmitted from the pulse generator at constant energy, on the surface of the metal, variable with the hardness of the metal itself. This elastic energy, however, remains unchanged at each corresponding hardness.
The pulse of force from origin to an elastic deformation volumetric equal to:
Ee = ∫ ½ Vol. K dx.
Vol = Volumetric deformation
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