We present a ®nite element procedure for the analysis of fully coupled thermo-elasto-plastic response of solids including contact conditions. The continuum mechanics formulation for the solid and contact conditions is summarized and eective ®nite element techniques for solution are given. The constraint function method is employed to impose the contact conditions at the Gauss points of the contact surface. Other procedures widely used in ®nite element analysis can be considered as particular cases of the constraint function method discussed herein. 7

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Advances in capabilities for the crush analysis of structures are presented. Such analyses are dicult to perform and require state-of-the-art analysis procedures: ecient and reliable shell elements, an eective and general contact algorithm, ecient procedures to calculate the element stresses in elasto-plasticity, the use of consistent tangent matrices, eective nonlinear incremental solution strategies and the ecient solution of the algebraic ®nite element equations. Moreover, the eectiveness of the complete analysis process can only be achieved by ensuring that each of the above solution procedures is in an eective manner integrated into a complete solution scheme. This paper focuses on the advances developed in ADINA and presents various analysis cases solved with the program. #