CREEP FRACTURE OF PLATES IN UNSTEADY COMPLEX STRESS STATE IN THE PRESENCE OF AMBIENT MEDIUM

Lokoshchenko, A.; Fomin, L.

Авторы: Alexander Lokoshchenko, Leonid Fomin
Сборник: Proceedings IRF2018: 6th International Conference Integrity-Reliability-Failure Lisbon/Portugal 22-26 July 2018. Editors J.F. Silva Gomes and S.A. Meguid Publ. INEGI/FEUP (2018); ISBN: 978-989-20-8313-1
Год издания: 2018
Место издания: Lisbon/Portugal
Первая страница: 277
Последняя страница: 278
Аннотация: ABSTRACT Creep fracture of bended rectangular plate is researched in unsteady complex stress state with consideration for the effect of an ambient medium. Using Rabotnov’s kinetic theory, time to fracture of such plate was determined during sequential bending in different planes. Piecewise constant dependences of bending moments levels and directions on time are considered. The time to fracture of the plate is determined using a fractional linear creep model. The effect of the ambient medium on the creep and the creep fracture of the plate is attributed to diffusive penetration of ambient medium elements into the material of the plate. Ambient medium effect is taken into consideration by introducing a function of cumulative average concentration into constitutive and kinetic fractional linear equations. The times to fracture while using scalar and vector damage parameters are compared. Keywords: rectangular plate; bend, creep; diffusion; diffusion front, creep fracture, linear fractional model; scalar damage parameter; vector damage parameter
Добавил в систему: Фомин Леонид Викторович

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

CREEP FRACTURE OF PLATES IN UNSTEADY COMPLEX STRESS STATE IN THE PRESENCE OF AMBIENT MEDIUMстатья

Прикрепленные файлы