Significant size effect and stress fluctuation of nanoscale lamellar bone pillars with diameters ranging from 640 to 4971 nm inside a single lamella. A size effect-induced brittle-to-ductile transition was revealed, the stress fluctuation behaviors were elaborated through a layered dislocation movement theory on the basis of strain gradient plasticity theory.
- Zhichao Ma
- Zhenfeng Qiang
- Luquan Ren
