Creep and damage in shells of revolution under cyclic loading and heating
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Дата
2014
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Elsevier Ltd.
Анотація
Creep of cyclically loaded thin shells of revolution and their fracture due to creep and fatigue mechanisms are studied. Creep-damage equations for steels and nickel-based alloys are built by the use of scalar damage parameter. Constitutive equations were derived using the method of asymptotic expansions and averaging over a period of cyclic loading. The cases of fast and slow varying of temperature and loading are regarded. General problem statement and method for solution of creep problems at cyclic loading are presented. Strain–stress state in shell structures is determined by the use of homemade FEM creep–damage code, where the finite element of conical shell is used. Results of creep–damage problem for conical panel are discussed.
Опис
Ключові слова
asymptotic expansions, FEM code, finite element method
Бібліографічний опис
Breslavsky D. Creep and damage in shells of revolution under cyclic loading and heating / D. Breslavsky, O. Morachkovsky, O. Tatarinova // International Journal of Non-Linear Mechanics. – 2014. – Vol. 66. – P. 87-95.