An extended model for electrostatic tractions at crack faces in piezoelectrics

Andreas Ricoeur; Roman Gellmann

doi:10.1117/12.878838

28 April 2011 An extended model for electrostatic tractions at crack faces in piezoelectrics

Andreas Ricoeur, Roman Gellmann

Proceedings Volume 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011; 79780L (2011) https://doi.org/10.1117/12.878838
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

Recently, the theoretical framework of fracture mechanics of piezoelectrics has been extended to include electrostatically induced mechanical tractions in crack models yielding a significant crack closure effect.^1-3 However, these models are still simple, neglecting e.g. the piezoelectric field coupling. In this work, an extended model for crack surface tractions is presented yielding some interesting effects. In particular, it is predicted that the Mode-I stress intensity factor is influenced by both a collinear normal stress parallel to the crack faces and a Mode-II shear loading. Also, the direction of electric field vs. poling direction is clearly manifested in the calculated crack loading quantities.

Citation Download Citation

Andreas Ricoeur and Roman Gellmann "An extended model for electrostatic tractions at crack faces in piezoelectrics", Proc. SPIE 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011, 79780L (28 April 2011); https://doi.org/10.1117/12.878838

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available