Jakub Kõo

Sirvi

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Determination of eigenstresses in electrodeposits by deformation of a thin-walled tube cathode: [full text in Russian]
(Eesti Põllumajanduse Akadeemia, 1963) Kõo, Jakub
A new technique for experimental determination of initial stress was developed. According to this, a coating to be investigated will be applied on the external surface of a thin-walled tubular cathode (see Figs. 2, 3). In addition, by using of electrical-resistance strain gauges on the internal surface of the cathode, strains are measured as a function of variable coating thickness. Initial stress is determined via approximation of experimental information. As an example in Fig.4 the distributions of measured deformations and initial and eigen- stresses (residual stresses) for a galvanic steel coating of a thin-walled tubular cathode are presented.