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Proceedings Paper

Crack extension in piezoelectric materials
Author(s): Seungbae Park; Chin-Teh Sun
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Paper 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.

Paper Details

Date Published: 1 May 1994
PDF: 12 pages
Proc. SPIE 2189, Smart Structures and Materials 1994: Smart Materials, (1 May 1994); doi: 10.1117/12.174071
Show Author Affiliations
Seungbae Park, Purdue Univ. (United States)
Chin-Teh Sun, Purdue Univ. (United States)


Published in SPIE Proceedings Vol. 2189:
Smart Structures and Materials 1994: Smart Materials
Vijay K. Varadan, Editor(s)

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