On the numerical assessment of the safety factor of elastic-plastic structures under variable loading

A finite element method for the shakedown analysis of two-dimensional structures under combined mechanical and thermal loading is presented. Linear elastic-perfectly plastic as well as linear elastic-limited kinematical hardening material behaviour is taken into account. The discretized shakedown problem is solved numerically with the reduced basis technique. A new method for the generation of reduced base vectors is presented. Numerical examples illustrate the proposed method. Copyright (C) 1996 Elsevier Science Ltd.