This collection of programmes provides three different methods for the solution of perfectly plastic problems. The user may choose between the classical radial return algorithm, a semi-smooth Newton method, and an SQP method. All methods may be applied to the perforated sheet problem, to Cook's membrane problem, and to a symmetric ring problem.
The main script has been realised in the file script.m. Before using the programme, the user should check the file README.TXT and the references therein.
Note that all programmes have been developed for research and teaching purposes only. They have not been optimised in terms of performance.