ANSALT II. A programme system to calculate three-dimensional, thermomechanically coupled, nonlinear targets within the framework of waste disposal in salt domes. Final report

The ANSALT II programme system was developed for three-dimensional calculation of nonlinear thermomechanical processes during disposal of radioactive, heat developing wastes in large salt rock structures of up to one million degrees of freedom. To achieve the necessary calculation efficiency, problem adequate, explicit calculation techniques were implemented which are especially appropriate for the calculation of large systems, and, due to their element-oriented mode of operation, permit the use of advanced computer technology possibilities. In order to realistically record the interaction between the mechanical and thermal behaviour of salt rock structures, a thermomechanical coupling was provided on a time-step level. (orig./HP)