Creep of the Steam Pipeline with Wall Thickness Nonuniformity

Abstract

The critical components of industrial plants, in this the high-pressure steam pipelines undergo continued destroy process. For this reason, an efficient diagnostic procedure during the whole operating period is required. Particularly, the most important are creep measurements performed periodically. The numerical simulations of steam pipeline creep phenomenon refer to the influence wall thickness nonuniformity on obtaining creep strain. The calculation was carried out with finite element model using computer software ANSYS Multiphysics. The obtained results present acceptable accordance with the long time measurements executed on the real object.