Open AccessProblem of long-term high temperature strength of metal materials
Author(s) -
R. A. Arutyunyan
Publication year - 2014
Publication title -
izvestiâ mgtu "mami"
Language(s) - English
Resource type - Journals
eISSN - 2949-1428
pISSN - 2074-0530
DOI - 10.17816/2074-0530-67380
Subject(s) - creep , brittleness , materials science , term (time) , brittle fracture , mechanics , fracture (geology) , structural engineering , forensic engineering , composite material , physics , engineering , quantum mechanics
The concept of brittle and ductile-brittle fracture under high-temperature Kachanov-Rabotnov creep laid the foundations of continuum damage mechanics. The article specifies the parameter of damage and formulates a system of interconnected consistent kinetic equations of the creep rate and damage. According to the obtained solutions, theoretical curves of the change in density, creep and long-term strength are constructed.