Abstract
Elasto-plastic crack solutions for some one- and two-dimensional quasicrystals have been found based on the generalized Dugdale–Barenblatt model. The size of the plastic zone and crack tip opening displacement are determined, from which a plastic fracture criterion for the materials is suggested.
Acknowledgements
We thank the National Natural Science Foundation of China for financial support through grants 10372016 and 10672022. We also thank Professor E. A. Davis for his help in improving the manuscript.