Plastic flow at the crack tip is considered using the ideal rigid-plastic body theory
under axisymmetric strain conditions. The material at the crack tip is treated as a body
consisting of an elastic outer region and a rigid-plastic inner region. It is shown that
distributions of the energy dissipation and strains at the crack tip are defined by conformable
expressions under plane strain conditions at the limiting case.
Keywords: crack tip; axisymmetric strain conditions; strain field; energy dissipation.
full paper (pdf, 1200 Kb)