PROPERTIES OF ELASTO-PLASTIC MATRIX D_(ep) AND A CRITERION ON LIMITING STATE OF SLOPE STABILITY BY FEM

@inproceedings{Defu2005PROPERTIESOE,
  title={PROPERTIES OF ELASTO-PLASTIC MATRIX D_(ep) AND A CRITERION ON LIMITING STATE OF SLOPE STABILITY BY FEM},
  author={Liu De-fu},
  year={2005}
}
  • Liu De-fu
  • Published 2005
It is proven that under assumption of the associated flow rule,the elasto-plastic matrix Dep is positive definite for hardening materials,positive semi-definite (the rank deficiency being one) for perfectly plastic materials and indefinite for softening materials,respectively. Based on the fact that Dep is singular for perfectly plastic materials,it is stated that if a slope arrives at the state of limit equilibrium,a layer of elements must go through the slope from the bottom of the slope to… CONTINUE READING