Journal
PHYSICAL MESOMECHANICS
Volume 19, Issue 3, Pages 255-268Publisher
SPRINGER
DOI: 10.1134/S1029959916030048
Keywords
plastic distortion; lattice curvature; bifurcational interstitial states; dislocation generation motion; superplasticity; fracture
Funding
- RFBR [14-01-00789]
- Russian Federation for support of leading scientific schools [NSh-10186.2016.1]
Ask authors/readers for more resources
Any deformed solid represents two self-consistent functional subsystems: a 3D crystal subsystem and a 2D planar subsystem (surface layers and all internal interfaces). In the planar subsystem, which lacks thermodynamic equilibrium and translation invariance, a primary plastic flow develops as nonlinear waves of structural transformations. At the nanoscale, such planar nonlinear transformations create lattice curvature in the 3D subsystem, resulting in bifurcational interstitial states there. The bifurcational states give rise to a fundamentally new mechanism of plastic deformation and fracture-plastic distortion-which is allowed for neither in continuum mechanics nor in fracture mechanics. The paper substantiates that plastic distortion plays a leading role in dislocation generation and glide, plasticity and superplasticity, plastic strain localization and fracture.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available