| A DECAGONAL QUASICRYSTAL WITH AN ARC-SHAPED CRACK |
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| 作者姓名： | Wang Xu Zhong Zheng |
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| 作者单位： | Key Laboratory of Solid Mechanics，Department of Engineering Mechanics and Technology，Tongji University，Shanghai 200092，China |
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| 基金项目： | Project supported by the National Excellent Young Scholar Science Fund of China(No.10125209)，the Teaching and Research Award Fuud for Outstanding Young Teachers in High Education Institutions of the Ministry of Education of China |
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| 摘 要： | A decagonal quasicrystal,which is weakened by an arc-shaped crack penetratingthrough the solid in the period direction,and which is subjected to remote uniform phonon stresses,is investigated by applying the complex variable method which is just developed by the authors.It is found that the phonon and phason stresses near the crack tips exhibit inverse square rootsingularities.The four complex stress functions characterizing the phonon and phason fields arederived.Explicit expressions for the phonon and phason stress intensity factors,crack openingdisplacements and energy release rate are also presented.
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A DECAGONAL QUASICRYSTAL WITH AN ARC-SHAPED CRACK |
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| Wang Xu Zhong Zheng.A DECAGONAL QUASICRYSTAL WITH AN ARC-SHAPED CRACK[J].Acta Mechanica Solida Sinica,2003,16(1):8-15. |
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| Authors: | Wang Xu Zhong Zheng |
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| Institution: | (1) Key Laboratory of Solid Mechanics, Department of Engineering Mechanics and Technology, Tongji University, Shanghai 200092, China, CN |
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| Abstract: | A decagonal quasicrystal,which is weakened by an arc-shaped crack penetrating through the solid in the period direction,and which is subjected to remote uniform phonon stresses, is investigated by applying the complex variable method which is just developed by the authors. It is found that the phonon and phason stresses near the crack tips exhibit inverse square root singularities.The four complex stress functions characterizing the phonon and phason fields are derived.Explicit expressions for the phonon and phason stress intensity factors,crack opening displacements and energy release rate are also presented. |
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| Keywords: | decagonal quasicrystal arc-shaped crack stress intensity factor energy release rate |
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