Dynamic behaviour of the icosahedral Al-Pd-Mn quasicrystal with a Griffith crack

被引：1
|
作者：
王晓芳 [1 ]
范天佑 [2 ]
祝爱玉 [1 ]
机构：
[1] Department of Mathematics, School of Science, Beijing Institute of Technology
[2] Department of Physics, School of Science, Beijing Institute of Technology
来源：
Chinese Physics B | 2009年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
icosahedral quasicrystals; dynamic response; phason dynamics;
D O I：
暂无
中图分类号：
O753.3 [];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The dynamic response of an icosahedral Al-Pd-Mn quasicrystal with a Griffith crack to impact loading is investigated in this paper. The elastohydrodynamic model for the wave propagation and diffusion together with their interaction is adopted. Numerical results of stress, displacement and dynamic stress intensity factors are obtained by using the finite difference method. The effects of wave propagation, diffusion and phonon-phason coupling on the quasicrystal in the dynamic process are discussed in detail, where the phason dynamics is explored particularly.
引用
收藏
页码：709 / 714
页数：6
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