期刊名称：BOOK OF PROCEEDINGS OF KARLOVAC UNIVERSITY OF APPLIED SCIENCES
印刷版ISSN：1848-3038
出版年度：2012
卷号：2
期号：1
页码：31-41
出版社：VELEUČILIŠTE U KARLOVCU
摘要：Gas turbine is able to start quickly and reach the nominal load in a very short time. Therefore, turbine blades, rotor, combustor, high pressure super heater,undergo high thermal and mechanical loads that can provoke initial cracks and damage components. Analysis of crack initialization and their propagation is a mandatory portion of gas turbine life assessment. The paper presents one of various methods of strength analysis based on Neuber rule that is using Ramberg-Osgood model for elastic-plastic area of material properties. Method was tested on models by FEM linear and non-linear analysis of isotropic materials.
关键词：crack propagation; life assessment; Ramberg-Osgood rule; Neuber rule
