A DECAGONAL QUASICRYSTAL WITH AN ARC-SHAPED CRACK

作     者：Wang Xu Zhong Zheng 

作者机构：Tongji Univ Dept Engn Mech & Technol Key Lab Solid Mech Shanghai 200092 Peoples R China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2003年第16卷第1期

页      面：8-15页

核心收录：

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：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 

主　　题：decagonal quasicrystal arc-shaped crack stress intensity factor energyrelease rate 

摘      要：A decagonal quasicrystal, which is weakened by an arc-shaped crackpenetrating through the solid in the period direction, and which is subjected to remote uniformphonon stresses, is investigated by applying the complex variable method which is just developed bythe authors. It is found that the phonon and phason stresses near the crack tips exhibit inversesquare root singularities. The four complex stress functions characterizing the phonon and phasonfields are derived. Explicit expressions for the phonon and phason stress intensity factors, crackopening displacements and energy release rate are also presented.