Stress Fields and Singularities at Notch and Crack Tips of Piezoelectric Materials

YANG Qing-sheng; FENG Si-wei; TAN Xiang-jun

Journal of Beijing University of Technology > 2006 > 32(S1): 41-45.

YANG Qing-sheng, FENG Si-wei, TAN Xiang-jun. Stress Fields and Singularities at Notch and Crack Tips of Piezoelectric Materials[J]. Journal of Beijing University of Technology, 2006, 32(S1): 41-45.

Citation:

YANG Qing-sheng, FENG Si-wei, TAN Xiang-jun. Stress Fields and Singularities at Notch and Crack Tips of Piezoelectric Materials[J]. Journal of Beijing University of Technology, 2006, 32(S1): 41-45.

Citation:

YANG Qing-sheng, FENG Si-wei, TAN Xiang-jun. Stress Fields and Singularities at Notch and Crack Tips of Piezoelectric Materials[J]. Journal of Beijing University of Technology, 2006, 32(S1): 41-45.

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Stress Fields and Singularities at Notch and Crack Tips of Piezoelectric Materials

College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China

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Received Date: May 09, 2006
Available Online: December 29, 2022

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Abstract

The present paper investigated the stress distribution at notch and crack tips of piezoelectric materials by coupled electric and elastic FE method. The singularities of the stress at the tips are emphasized for different notch angles and different electric strengths. The numerical results show that the notch angle can affect obviously the singularities of the stress and slightly the stress level in the front of the tips. The electric field induces oscillation of the stress, but the stress has relatively small level.
- piezoelectric materials,
- notch,
- crack,
- singularity,
- finite element method

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