Analogy of Stress Singularities Analysis between Piezoelectric Materials and Anisotropic Materials
| Autor: | Toru Sasaki, Toshimi Kondo, Takeshi Tane |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
business.product_category
Materials science Deformation (mechanics) Piezoelectric materials Mechanical engineering General Medicine Anisotropic materials Piezoelectricity Wedge (mechanical device) Stress (mechanics) Stress singularity Discontinuity (linguistics) Analogy Gravitational singularity business Anisotropy Joint (geology) |
| Zdroj: | Procedia Materials Science. 3:1767-1772 |
| ISSN: | 2211-8128 |
| DOI: | 10.1016/j.mspro.2014.06.285 |
| Popis: | In recent years, intelligent or smart structures and systems have become an emerging new research area. The joint structures of piezoelectric and piezoelectric materials in intelligent structures are often used. Piezoelectric materials have been extensively used as transducers and sensors due to their intrinsic direct and converse piezoelectric effects that take place between electric fields and mechanical deformation. They are playing a key role as active components in many branches of engineering and technology. Then it is known that stress singularity frequently occurs at interface due to a discontinuity of materials. The stress singularity fields are one of the main factors responsible for debonding under mechanical or thermal loading. So many investigations of stress singularities of piezoelectric materials have been conducted until now, but its experimental studies are not so much. In this paper, with view to establish experimental evaluation method of piezoelectric stress singularities, analogy of basic formulation between piezoelectric materials and anisotropic materials are shown. And the analysis of stress singularities in piezoelectric materials containing crack or wedge is performed. Next the analysis of stress singularities in anisotropic materials is performed. Then the analogy of their analysis theory is shown. |
| Databáze: | OpenAIRE |
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