Effect of T-stress on the fracture in an infinite one-dimensional hexagonal piezoelectric quasicrystal with a Griffith crack
| Autor: | Guan-ting Liu, Yan-Bin Zhou, Lian-he Li |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Condensed matter physics Field (physics) Mechanical Engineering General Physics and Astronomy Quasicrystal 02 engineering and technology 021001 nanoscience & nanotechnology Piezoelectricity Stress field Stress (mechanics) 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Electric field Fracture (geology) General Materials Science Phason 0210 nano-technology |
| Zdroj: | European Journal of Mechanics - A/Solids. 86:104184 |
| ISSN: | 0997-7538 |
| DOI: | 10.1016/j.euromechsol.2020.104184 |
| Popis: | T-stress as an important parameter characterizing the stress field around a cracked tip has attracted much attention. In this paper, the T-stress of a Griffith crack in a one-dimensional (1D) hexagonal piezoelectric quasicrystal (PQC) is studied. By applying the Fourier transform, the stress component parallel to the crack plane can be clearly determined, and then a closed-form solution of the elastic T-stress is obtained. The role of the T-stress in fracture for 1D hexagonal PQC is emphasized. Numerical results show the influence of the electric field and phason field on the T-stress of a Griffith crack is examined. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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