New model for surface fracture induced by dynamical stress

Дата и время публикации : 1997-06-16T16:08:26Z

Авторы публикации и институты :
J. V. Andersen
L. J. Lewis

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: Revtex, 4 pages, 4 figures available upon request
Первичная категория: cond-mat.mtrl-sci

Все категории : cond-mat.mtrl-sci

Краткий обзор статьи: We introduce a model where an isotropic, dynamically-imposed stress induces fracture in a thin film. Using molecular dynamics simulations, we study how the integrated fragment distribution function depends on the rate of change and magnitude of the imposed stress, as well as on temperature. A mean-field argument shows that the system becomes unstable for a critical value of the stress. We find a striking invariance of the distribution of fragments for fixed ratio of temperature and rate of change of the stress; the interval over which this invariance holds is determined by the force fluctuations at the critical value of the stress.

Category: Physics