Progressive Disc Collapse at Thermal Cycling without Mechanical Loading
Authors
Oleg Fedorovich Cherniavsky
South Ural State University
Keywords:
shakedown, progressive disc collapse, creep, disks, strength of turbomachinery
Abstract
The cyclic movement of the heat front or wave along the disk radius is shown to lead to the residual unceasing increase or decrease of its radius at small temperature differences – from a few tens of degrees for steel disks. By the example of a disk bending it was shown that similar effects can also be caused by time-temperature dependences
Author Biography
Oleg Fedorovich Cherniavsky, South Ural State University
Dr. Sc. (Engineering), Professor, Honoured Scientist and Engineer of Russian Federation, professor of applied mechanics, dynamics and durability of machines department
