Penny shaped crack in a three-dimensional piezoelectric strip under in-plane normal loadings |
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| Authors: | J H Yang PhD Candidate Prof K Y Lee |
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| Affiliation: | (1) Present address: Department of Mechanical Engineering, Graduate school, Yonsei University, 120-749 Seoul, Korea;(2) Present address: Department of Mechanical Engineering, Yonsei University, 120-749 Seoul, Korea |
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| Abstract: | Summary The singular mechanical and electric fields in a three-dimensional piezoelectric ceramic strip containing a penny shaped crack under in-plane normal mechanical and electrical loadings based on the continuous electric boundary conditions on the crack surface are considered here. The potential theory and Hankel transforms are used to obtain a system of dual integral equations, which is then expressed as a Fredholm integral equation. All sorts of field intensity factors of Mode I are given, and numerical values for PZT-6B piezoelectric ceramic are graphically shown. |
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