Vol.11, No1, 2011, pp.35-42
UDC  620.162 : 66.047

In this work, we are interested in an analysis of thermo mechanical fatigue on a molecular sieves gas dryer. This analysis is designed to predict the behaviour of the material and especially the continued evolution of the stress in the four phases of work of this dryer. We have considered in this study the effect of temperature fluctuations on the production and the location of a crack. After verification of the molecular sieve dryer by ASME code, the stress variations as a function of time, in a node located in the area of the crack, are numerically simulated by ABAQUS software. The results of this analysis permit to determine that the theoretical number of cycles may not be exceeded using the Wöhler curve and taking into account all the safety and correction factors.

Keywords: gas dryer, numerical simulation, thermomechanical fatigue