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Keywords = cubic quasicrystal piezoelectric materials

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10 pages, 2062 KiB  
Article
The Griffith Crack and the Interaction between Screw Dislocation and Semi-Infinite Crack in Cubic Quasicrystal Piezoelectric Materials
by Jiandong Pi and Lianhe Li
Crystals 2022, 12(9), 1250; https://doi.org/10.3390/cryst12091250 - 2 Sep 2022
Cited by 4 | Viewed by 1621
Abstract
The Griffith crack problem and the interaction between screw dislocation and semi-infinite crack in cubic quasicrystal piezoelectric materials are studied by using the complex variable function method. The stress intensity factors and electric displacement intensity factors are obtained. The effects of the linear [...] Read more.
The Griffith crack problem and the interaction between screw dislocation and semi-infinite crack in cubic quasicrystal piezoelectric materials are studied by using the complex variable function method. The stress intensity factors and electric displacement intensity factors are obtained. The effects of the linear force and coupling elastic coefficient on the stress intensity factor of phonon field and phason fields are discussed in detail. By numerical examples, it is found that the linear force and the coupling elastic constant have a significant effect on the stress intensity factor. Full article
(This article belongs to the Special Issue Applications of Crystal Plasticity in Forming Technologies)
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