Simulation of Beam-Column Stability with Automatic Strain Incrementation

摘要

In Monte-Carlo simulation methods the deterministic procedures represents the realrnphysical meaning of the system. The probabilistic behaviour is strongly connectingrnto the distributions of input random variables, but the accuracy of the certainrncalculations belongs to the correct physical meaning and accordingly to therndeterministic procedure [9]. Nowadays the FEM is a plausible choice for analysingrnthe response of a structure, but on the other hand a sufficiently correct non-linearrnFEM procedure can be time consuming what can not be allowed in Monte-Carlornmethod because of the great number of repetition. Another problem is that therndeterministic procedure should be fully automatic for a wide range of problems thatrncan occur during the simulation. The paper describes a strain based loadrnincrementation technique for FEM, which handles all mentioned problems, worksrnautomatically, efficiently and reliably at a great amount of cases.