STRESS & DEFLECTION ANALYSIS OF HORIZONTAL PRESSURE VESSEL WITH DIFFERENT DISHED END USING FEM

Abstract

ABSTRACT

It is proposed to conduct stress analysis of a stress deflection analysis of horizontal pressure vessel with different dished ends. Near the radial hole on the surface. The literature indicated that there will be a ductile fracture occurring in such cases. The radial holes can’t be avoided due to various piping attachments. Hence the stress analysis of cylinder and its ultimate failure under internal pressure beyond elastic limit is an appropriate scenario. The plastic zone appearing in vicinity of internal surface of cylinder propagates more firstly along hole side. When cylinder is unloaded it will cause reverse plasticity. Therefore it is proposed to obtain numerical solution using Finite Element analysis of cylindrical segment to obtain the radial & hoop stress distribution by including elastoplastic conditions. In the present work the stress deflection analysis of horizontal pressure vessel with different dished ends. Variable internal pressure states is conducted Elastic analysis of uniform cylinder & cylinder with holes is predicted both from theory (lame’s formulae) under & Finite element method. It is observed that there are several factors which influence stress intensity factors. The Finite element analysis is conducted using commercial solvers ANSYS & Design in CREO-2 software. The results are presented in form of graphs and tables.

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