J-integral for ferroelectric compact-tension specimens with electric field

Christopher S. Lynch

doi:10.1117/12.276583

13 June 1997 J-integral for ferroelectric compact-tension specimens with electric field

Christopher S. Lynch

Proceedings Volume 3039, Smart Structures and Materials 1997: Mathematics and Control in Smart Structures; (1997) https://doi.org/10.1117/12.276583
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

Experiments based on the compact tension geometry are applied to a relaxer composition of lead lanthanum zirconate titanate. This composition is transparent, and displays electro-optical and piezo-optical coupling. A standard photo-stress arrangement gives a direct view of electric field and stress concentrations. Electric field is observed to cause cracks to close. This is consistent with earlier predictions of a negative energy release rate.

Citation Download Citation

Christopher S. Lynch "J-integral for ferroelectric compact-tension specimens with electric field", Proc. SPIE 3039, Smart Structures and Materials 1997: Mathematics and Control in Smart Structures, (13 June 1997); https://doi.org/10.1117/12.276583

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