[en] Since the 19th Century, lots of strength criteria have
been developed in order to model the materials' intrinsic response
to loads and to identify the failure conditions at different stress
states. Among these theories, the Mohr-Coulomb, Drucker-
Prager, Griffith-Murrel and Lade criteria are probably the most
used in Rock Mechanics [1].
A particularly convenient method for representing failure
criteria is to use the deviatoric plane (also called )-plane) in
which the effects of the three principal stresses can be taken into
account. In this paper, we describe how to model those classical
failure criteria in the deviatoric plane from a set of experimental
data expressed in terms of principal stresses. As an application,
the developed methodologies are applied to the Soignies
limestone.
