NUMERICAL SIMULATION OF STRESS-STRAIN STATE OF ARCHED METAL THREE-LINK YIELDING SUPPORT ELEMENTS
A. A. Neverov, A. I. Konurin, S. A. Neverov, A. O. Kudrya
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Metal support, arch, yielding, rigidity, stresses, strains, yield strength, numerical modeling, bearing capacity, support resistance
Abstract
In order to verify and confirm the specified performance characteristics of arched yielding support made of a special interchangeable profile, the problem of determining its stress-strain state is considered. Most sensitive assemblies and support elements were identified for different operating modes, in which the limiting case - plastic strain development occurs first. It is shown that reliability and operability of an arched metal three-link yielding support depends on the strength of yielding assembly. At the same time, its maximum bearing capacity is provided in a hard operating mode.
|
