|
Jin Hui
Wang Jinnuo
Institute of Mechanical Engineering, Southwest Jiaotong
University,
Chengdu 610031, China
Wang Libin
Department of
Mechanics,
Shijiazhuang Railway
Institute,
Shijiazhuang 050043, China |
|
|
PROBABILISTIC METHODOLOGY OF LOW CYCLE
FATIGUE ANALYSIS
Abstract:
The cyclic stress-strain responses (CSSR), Neuber’s rule (NR) and cyclic strain-life relation (CSLR) are treated as probabilistic curves in local stress and strain method of low cycle fatigue analysis. The randomness of loading and the theory of fatigue damage accumulation (TOFDA) are considered. The probabilistic analysis of local stress, local strain and fatigue life are constructed based on the first-order Taylor’s series expansions. Through this method proposed fatigue reliability analysis can be accomplished.
Key words: Low cycle fatigue Local stress and strain method Probabilistic analysis Fatigue reliability
|