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Mixed-mode crack tip loading and crack deflection in 1D quasicrystals

Wang, Zhibin
Scheel, Johannes
Ricoeur, Andreas

Quasicrystals (QC) are a new class of materials besides crystals and amorphous solids and have aroused much attention of researchers since they were discovered. This paper presents a generalized fracture theory including the J-integral and crack closure integrals, relations between J1, J2 and the stress intensity factors as well as the implementation of the near-tip stress and displacement solutions of 1D QC. Different crack deflection criteria, i.e. the J-integral and maximum circumferential stress criteria, are investigated for mixed-mode loading conditions accounting for phonon–phason coupling. One focus is on the influence of phason stress intensity factors on crack deflection angles.

Citation
In: Applied Physics A Volume 122 / Issue 12 (2016) , S. ; EISSN 1432-0630
Collections
@article{doi:10.17170/kobra-202104303784,
  author    ={Wang, Zhibin and Scheel, Johannes and Ricoeur, Andreas},
  title    ={Mixed-mode crack tip loading and crack deflection in 1D quasicrystals},
  keywords ={620 and Spannungsintensitätsfaktor and Energiefreisetzung and Rissschließung and Rissspitze},
  copyright  ={https://rightsstatements.org/page/InC/1.0/},
  language ={en},
  journal  ={Applied Physics A},
  year   ={2016}
}