Fracture Mechanics of Quasicrystalline Materials

Fan, T. Y. and Mai, Y. W. (2004). Fracture Mechanics of Quasicrystalline Materials. In: Atrens, A., Boland, J. N., Clegg, R. and Griffiths, J. R., Structural Integrity and Fracture International Conference (SIF'04), Brisbane, Australia, (). 26-29 September 2004.

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Author Fan, T. Y.
Mai, Y. W.
Title of paper Fracture Mechanics of Quasicrystalline Materials
Conference name Structural Integrity and Fracture International Conference (SIF'04)
Conference location Brisbane, Australia
Conference dates 26-29 September 2004
Publication Year 2004
Sub-type Fully published paper
Editor Atrens, A.
Boland, J. N.
Clegg, R.
Griffiths, J. R.
Abstract/Summary The existence of phason field - the unusual field parameter - in quasicrystals leads to the essential difference of the elasticity between the materials with the conventional structural materials including crystals. In the new solid phase, there are two different displacement vectors - phonon and phason fields. Connecting with this, there are two different strain tensors and stress tensors in the new material. This challenges the solid mechanics as well as the fracture mechanics of conventional structural materials. In this paper, some exact solutions for crack problems under different configurations and states of motion in different quasicrystal systems will be exhibited. These results reveal the characteristics of fracture mechanics of the new material in which the correlation and difference features of the new branch with the traditional fracture mechanics are demonstrated.
Subjects 290801 Structural Engineering
Keyword quasicrystals
fracture mechanics
phason field
phonon field
Q-Index Code EX
Additional Notes This paper is abstract only.

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
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Created: Tue, 04 Jan 2005, 10:00:00 EST