METHOD TO EVALUATE OPERABILITY OF PROCESS EQUIPMENT OPERATED UNDER CONDITIONS CAUSING REDUCTION OF PLASTICITY AND CRACKING OF METAL IN STRUCTURAL ELEMENTS Russian patent published in 2015 - IPC G01M15/00 

FIELD: measurement equipment.

SUBSTANCE: evaluation of operability of process equipment is carried out by parameters and criteria of metal plasticity, for this purpose maximum deformations are detected in the concentrator top e_max, as well as damaging deformations e_L, at the same time if the condition e_max<e_L is complied with, then the equipment state is evaluated as operable, if the condition is not complied with, then in the top of the initial concentrator under action of nominal stresses σ_H from external loads cracking is possible, i.e. formation of initial crack with size L₀, then, if the condition K_I(L₀)≤[K_I] is met, where K_I - permissible coefficient of stress intensity, the condition of equipment is evaluated as operable.

EFFECT: substantiation of possibility to further operate process equipment and prevention of highly dangerous brittle damages.

3 dwg, 1 tbl