Modelling High Cycle Fatigue for Underground Pipeline Using S-N Curve Method

Description

The purpose of the study is to calculate the high cycle fatigue for buried pipeline using conventional S-N curve method.

Different Fatigue damage model based on Biaxial and uniaxial stress criteria were used to to predict the fatigue life while Rain flow cycle counting algorithm is used to to determine the fatigue cycles. Different fatigue parameters i.e. Fatigue fracture strength, fatigue strength coefficient, Coffin-Manson exponent, cyclic elastic modulus.