Loading device ''Neutron-M2'' for in-pile tests of tubular specimens on crrep an long-term rupture strength at plane stress state

Described are the loading device ''Neutron-M2'' for in-pile tests of tubular specimens on creep and long-term rupture strength under the action of internal pressure, tensile force and torque moment as well as the results of the experimental checking of basic parameters of loading systems and strain measurement. For most frequent practical use expressions for determining axial σsub(Z) and circular σsup(pTHETA) stresses as well as internal pressure and N axial load depending on the value of σsub(i) stress intensity correlation main stresses k and relation of axial stress to circular m. Data on creep and durability of the 0Kh16N15M3B steel at 650 deg C, derived at the ''Neutron-M2'' device are given