... expanding hydraulic expanding leak path tensile strength pushout testing shear load testing tube–to–tube-sheet joints tube–to–tube-sheet welds Poisson effect Poisson constant yield strength High-pressure feedwater circulating in the tubes of closed feedwater heaters may...

...Stanley Yokell This paper advocates correlating rolling torque or hydraulic expanding pressure with shear load strength instead of percent wall reduction as the criterion of expanding adequacy for thin-walled tubes. It compares magnitudes of measurements required to estimate wall reduction...