Crack extension in piezoelectric materials

Seungbae Park; Chin-Teh Sun

doi:10.1117/12.174071

1 May 1994 Crack extension in piezoelectric materials

Seungbae Park, Chin-Teh Sun

Proceedings Volume 2189, Smart Structures and Materials 1994: Smart Materials; (1994) https://doi.org/10.1117/12.174071
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

Closed form solutions for all three modes of fracture for an infinite piezoelectric medium containing a center crack and is subjected to a combined mechanical and electrical loading were obtained using the Stroh formalism. The strain energy release rate was derived and implication to fracture behavior was discussed. Mode I fracture experiments were conducted using compact tension specimens of PZT-4 piezoelectric ceramic. The results indicate that the use of the strain energy release rate as fracture criterion can accurately account for effects of the electric field on the apparent fracture toughness of the material.

Citation Download Citation

Seungbae Park and Chin-Teh Sun "Crack extension in piezoelectric materials", Proc. SPIE 2189, Smart Structures and Materials 1994: Smart Materials, (1 May 1994); https://doi.org/10.1117/12.174071

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