Modelling size effects in micro/nano-systems by including interfacial effects in a gradient plasticity framework
by Rashid K. Abu Al-Rub
International Journal of Materials and Structural Integrity (IJMSI), Vol. 4, No. 2/3/4, 2010

Abstract: The effect of the material microstructural interfaces increases as the surface-to-volume ratio increases. It is shown in this work that interfacial effects have a profound impact on the scale-dependent plasticity encountered in micro/nano-systems. This is achieved by developing a physically-based higher-order gradient-dependent plasticity theory that enforces microscopic boundary conditions at interfaces and free surfaces. These non-standard boundary conditions relate the micro traction stress at the interface to the interfacial energy. Application of the proposed framework to size effects in biaxial tension of a thin-film on an elastic substrate is presented. Three film-interface conditions are modelled: soft, intermediate, and hard interfaces.

Online publication date: Tue, 14-Sep-2010

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials and Structural Integrity (IJMSI):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com