Monica—A computer algorithm for solving boundary value problems using the double-hardening constitutive law Monot: I. Algorithm development

The principal features involved in the implementation of the double-hardening constitutive law Monot¹ into a general purpose computer algorithm called MONICA^2,3 are described. These include details of general program structure and of steps taken to overcome problems such as computer storage, computer run-time, algorithm stability and problems associated with the stress–strain singularity which exists at the intersection of the two yield surfaces.