Publication

Abstract : Pressure vessels are widely used in products ranging from consumer artifacts to engineering components. Ensuring safety and reliability of pressure vessel is therefore imperative. In cases where conducting experiments is not viable, analytical or numerical methods are used. In this work, a horizontal pressure vessel is analyzed using finite element method for estimating the failure pressure and stress intensity factor in the presence of residual stress. A three-dimensional finite element model was created with a commercially available software, and a semi-elliptical crack was introduced in the pressure vessel on the outer and inner surfaces. In addition, the crack orientation was also changed, and the stress intensity factor was determined both analytically and numerically. The results showed a reasonably good agreement.