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Design and Fatigue Analysis of a Spherical Pressure Vessel as Per ASME Codes and Validation with FEA Results


Vinod Kumar.C.N , AIT, Chikmagalur, VTU, Belgaum, Karnataka, India.; Manu.S.S, AIT, Chikmagalur, VTU, Belgaum, Karnataka, India.


Spherical Pressure Vessel, Fatigue Analysis, ASME


Pressure vessels are containers to store a fluid of any form under pressure. Pressure inside the vessel might either be positive or negative. Since the pressure vessels are usually associated with high pressures and temperature, design of these vessels is of utmost importance as human life and property are at risk. Because of such high stakes industries follow a standard code for the design and fabrication of such pressure vessels. The aim of this work is to carry out a detailed design & Fatigue analysis of a Spherical Pressure vessel. The Project deals with the design, analysis and fatigue life evaluation of a Spherical Pressure Vessel as per ASME standards. In this case a spherical pressure vessel was considered since it is a more stable structure in comparison to other shapes. The pressure vessel is being designed as per ASME codes & standards to legalize the design. Geometrical and finite element model of Pressure vessel is created using CAD CAE tools. The obtained FEM results are compared with ASME standards and a good agreement between them is obtained. Fatigue life evaluation of the pressure vessel is done with ANSYS fatigue tool for 30 years, on an average of 10 cycles per day. Two shell materials have been considered for analysis, carbon steel and a stainless steel. Comparisons are drawn between the two materials and a better material is suggested.

Other Details

Paper ID: IJSRDV3I60421
Published in: Volume : 3, Issue : 6
Publication Date: 01/09/2015
Page(s): 1265-1268

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