A CONSTITUTIVE MODEL FOR ELASTIC‐PLASTIC DEFORMATION UNDER CYCLIC MULTIAXIAL STRAINING

@inproceedings{Navarro1997ACM,
  title={A CONSTITUTIVE MODEL FOR ELASTIC‐PLASTIC DEFORMATION UNDER CYCLIC MULTIAXIAL STRAINING},
  author={Amparo Navarro and Malcolm R. Brown},
  year={1997}
}
— The yield criterion is interpreted as defining the metric of the stress space. Hydrostatic stresses correspond to null geodesies. The plastic strain increment represents a normal projection of the increment undergone by a certain scalar function (hardening function) which depends only on the distance between stress points. This establishes a flow rule formally equivalent to the Prandtl-Reuss equations. Consideration of un-loading processes leads to the analysis of equivalent paths and to the… CONTINUE READING