STRESS ANALYSIS OF THICK PRESSURE VESSEL UNDER CONDITION OF HIGH PRESSURE WITH ABAQUS®

Abstract

The most important parameter to analyze while doing design of any system is stress. This study focuses not only on the stress analysis, but also to model different types of pressure vessel in ABAQUS® 6.7 and 6.8. and importing models from other modeling software. This dissertation will help the reader to analyze thin or thick pressure vessels, with or without discontinuity, for principal stresses, strain, dilation, thermal stress etc. Few design codes(ASME,BIS,EU) are discussed which are currently followed worldwide. A proper elaboration of elasticity theory of pressure vessel design, in this thesis, will help readers to compare ABAQUS® results with theory. Critical design techniques like autofrettage and shrink fit cylinders also modeled and analyzed in ABAQUS® and results were found as mesh independent and quite close to the theoretically expected values or published results.